BULLETIN NUMBER 18 TABLE OF CONTENTS PAGE SOUTHEASTERN U. S. EARTHQUAKES: JANUARY THROUGH JUNE 1986................ 1 Acknowledgments........................................................ 2 References............................................................. 2 SEUSSN EARTHQUAKE STATISTICS............................................. 10 HYPOCENTRAL PARAMETERS, MAGNITUDES, AND ARRIVAL TIMES FOR SOUTHEASTERN U.S. EARTHQUAKES: JANUARY THROUGH JUNE 1986.............. 13 HYPOCENTRAL PARAMETERS, MAGNITUDES, AND ARRIVAL TIMES FOR RESERVOIR ASSOCIATED SEISMICITY: JANUARY THROUGH JUNE 1986............ 39 ADDITIONAL ARRIVAL TIME DATA: JANUARY THROUGH JUNE 1986................. 45 APPENDICES............................................................... 47 Appendix A. Definitions and Operator Listing............................ 49 Appendix B. Seismic Stations Operating During Report Period............. 51 Appendix C. Errata and Addenda.......................................... 63 Appendix D. Virginia Tech Seismological Observatory Estimates of Completeness For The Southeastern U. S. Seismicity Catalog.. 65 Appendix E. 1986 Virginia Earthquake Relocation Report.................. 67 Appendix F. Study of Traveltime Residuals at the Seismic Stations in the Southeastern Tennessee Area............................. 73 MAILING LIST............................................................. 79 FIGURES 1. Earthquake Epicenter Map for the Report Period...................... 3 2. Earthquake Epicenter Map for the Report Period (Scaled to Magnitude) 5 3. Earthquake Epicenter Map for the Period from July 1977 through June 1986......................................................... 7 4. Earthquake Epicenter Map for the Period from July 1977 through June 1986 (Scaled to Magnitude, M ge 3.0)......................... 9 5. Focal Depth Distribution of Southeastern U.S. Earthquakes........... 11 6. Seismic Stations Operating During Report Period..................... 55 7. Georgia Tech - Geological Survey Of Alabama Seismic Network......... 57 8. South Carolina Seismic Network...................................... 57 9. Tennessee Earthquake Information Center - Southern Appalachian Regional Seismic Network.............................. 59 10. Tennessee Valley Authority Seismic Network.......................... 59 11. Virginia Tech Seismic Network....................................... 61 12. Distribution of P Wave Residuals for Southeastern Tennessee Area Stations.......................................................... 75 13. Residual Plot for Station DCT....................................... 77 TABLES 1. Standard VTSO HYPOELLIPSE Reset Parameters.......................... 71 SOUTHEASTERN U. S. EARTHQUAKES: JANUARY THROUGH JUNE 1986 There were 49 earthquakes (0.0 le M le 3.5) located within the SEUSSN monitoring area during the first six months of 1986. Of those, one in Georgia (13 March, MD = 2.4), two in South Carolina (13 February, mb(Lg) = 3.5; 9 March, MDL = 2.2), one in Tennessee (7 January, MDB = 3.1), and one in Virginia (26 March, MDB = 2.9) were felt. Southeastern Tennessee continues to have the highest level of seismic activity within the region. Earthquakes reported include two in Alabama, five in Georgia, one in Maryland, three in North Carolina, five in South Carolina, 30 in Tennessee, two in Virginia, and one in West Virginia. Figures 1 and 2 are epicenter maps of tectonic events (M ge 0) located within the region during the report period. Figures 3 and 4 are cumulative epicenter maps for the 9 year period from July 1977 through June 1986 (SEUSSN Bulletins 1 through 18). Report period and cumulative earthquake catalog statistics are presented on page 10. Figure 5 is a plot of focal depth distributions for both the report period and for the cumulative earthquake catalog. The largest earthquake for the report period was a mb(Lg) = 3.5 event (13 February) that was felt (MMI = V) in South Carolina, Georgia, and North Carolina. Also of interest is a mine collapse (mb = 4.0; 7 May) in Tuscaloosa County, Alabama. That event was well recorded at teleseismic distances of greater than 5000 km. The Georgia Institute of Technology is making available a Quarterly Earthquake Bulletin which contains detailed information on network operations and event locations from their Georgia/Alabama Regional Seismographic Network. Acknowledgments This report is the eighteenth semiannual BULLETIN OF SEISMICITY OF THE SOUTHEASTERN UNITED STATES and covers the period from January through June, 1986. The organizations supplying data for this Bulletin are the Delaware Geological Survey, the E. I. DuPont de Nemours and Company, Inc. (Savannah River Laboratory), Georgia Institute of Technology, Memphis State University (Tennessee Earthquake Information Center), the Tennessee Valley Authority, the University of South Carolina, the United States Geological Survey, the Virginia Division of Mineral Resources, and Virginia Polytechnic Institute and State University (Seismological Observatory). In addition to the support furnished by the host institutions of the network contributors, partial or full support by other agencies for the operation of portions of the SEUSSN is gratefully acknowledged. The agencies providing support to the members of SEUSSN are as follows: The Georgia Power Company, The National Science Foundation, The Nuclear Regulatory Commission, The Tennessee Valley Authority, The United States Geological Survey, Virginia Power. References Evernden, J. F., (1967), MAGNITUDE DETERMINATION AT REGIONAL AND NEAR-REGIONAL DISTANCES IN THE UNITED STATES, Bulletin of the Seismological Society of America, 57, pp. 591-639. Hoaglin, David C., Frederick Mosteller, and John W. Tukey, (1983), UNDERSTANDING ROBUST AND EXPLORATORY DATA ANALYSIS, John Wiley & Sons, New York, NY, 447 pp. Lahr, J. C., (1980), HYPOELLIPSE/VAX: A COMPUTER PROGRAM FOR DETERMINING LOCAL EARTHQUAKE HYPOCENTRAL PARAMETERS, MAGNITUDE, AND FIRST-MOTION PATTERN, U.S. Geological Survey Open-File Report 80-59, 59 pp. Lee, W. H. K., and J. C. Lahr, (1974), HYPO71: A COMPUTER PROGRAM FOR DETERMINING HYPOCENTER, MAGNITUDE, AND FIRST MOTION PATTERN OF LOCAL EARTHQUAKES, United States Geological Survey Open-File Report 75-311, Revised: January 1974, 134 pp. Lee, W. H. K., and S. W. Stewart, (1981), PRINCIPLES AND APPLICATIONS OF MICROEARTHQUAKE NETWORKS, Academic Press, New York, NY, 293 pp. Nuttli, O. W., (1973), SEISMIC WAVE ATTENUATION AND MAGNITUDE RELATIONS FOR EASTERN NORTH AMERICA, Journal of Geophysical Research, 78, pp. 876-885. Ott, L., (1984), AN INTRODUCTION TO STATISTICAL METHODS AND DATA ANALYSIS, Second Edition, Duxbury Press, Boston, MA, 775 pp. FIGURE 1. Epicenters (Open Circles) for Earthquakes (M ge 0.0) in the Southeastern United States from January through June 1986. FIGURE 2. Epicenters (Open Circles - Scaled to Event Magnitude) for Earthquakes (M ge 0.0) in the Southeastern United States from January through June 1986. FIGURE 3. Epicenters (Open Circles) for Earthquakes (M ge 0.0) in the Southeastern United States from July 1977 through June 1986. FIGURE 4. Epicenters (Open Circles - Scaled to Event Magnitude) for Earthquakes (M ge 3.0) in the Southeastern United States from July 1977 through June 1986. SEUSSN EARTHQUAKE STATISTICS Period: January through June 1986 (0.5 years) Tectonic Reservoir Number of Earthquakes with M ge 0.0 49 24 Number of Earthquakes with M ge 2.5 9 2 Number of Earthquakes with M ge 3.5 1 0 Mean Earthquake Magnitude 1.6 1.3 Median Earthquake Magnitude 1.7 1.3 Number of Felt Earthquakes 5 0 Number of Earthquakes with Known Dmin le 25.0 km 35 23 Number of Earthquakes with Known ERH le 5.0 km 47 24 Number of Earthquakes with Known ERZ le 5.0 km 38 8 Largest Earthquake Reported 13 February 1986; 11:35 - Old Pickens, SC mb(Lg) = 3.5, MDB = 3.5, MMI = V Number of Blasts or Non-locatable Events Reported 1 Number of Events Outside the SEUSSN Area Reported 1 Number of Seismograph Stations Operating 150 Period: July 1977 through June 1986 (9 years) Tectonic Reservoir Number of Earthquakes with M ge 0.0 523 601 Number of Earthquakes with M ge 2.5 118 49 Number of Earthquakes with M ge 3.5 13 1 Mean Earthquake Magnitude 1.8 1.4 Median Earthquake Magnitude 1.8 1.3 Number of Felt Earthquakes 74 3 Number of Earthquakes with Known Dmin le 25.0 km 262 73 Number of Earthquakes with Known ERH le 5.0 km 420 102 Number of Earthquakes with Known ERZ le 5.0 km 351 80 Largest Earthquake Reported July 20, 1980; 18:52 - Sharpsburg, KY mb(Lg) = 5.2, MMI = VII Number of Blasts or Non-locatable Events Reported 160 Number of Events Outside the SEUSSN Area Reported 10 FIGURE 5. Focal Depth Distribution of Southeastern U.S. Earthquakes. The upper half of the figure shows the interval (left) and cumulative (right) depth distributions for the report period while the lower half of the figure is a similar display for earthquakes reported during the period from July 1977 through June 1986 (M ge 0.0 and ERZ le 5.0 km). Displayed above both interval distributions is a box plot (Ott, 1984, pp. 43-47; Hoaglin and others, 1983, pp. 58-65). Indicated are the mean (star), the 25% and 75% quartile (box outline), the median (center bar), the upper and lower adjacent values (small vertical bars), and outliers (small squares). On the cumulative depth distributions arrows show the 10% and 90% depths. HYPOCENTRAL PARAMETERS, MAGNITUDES, AND ARRIVAL TIMES FOR SOUTHEASTERN U. S. EARTHQUAKES: JANUARY THROUGH JUNE 1986 Events are listed chronologically (this also applies to multiple hypocenter locations for the same event). All times are Universal Time. Most entries in the listing are self-explanatory. Items that might require further explanation are defined in Appendix A. ***** 7 JANUARY 1986; 01:26 - DECATUR, TENNESSEE ***** *NEIC Felt in parts of Rhea, Meigs, McMinn, and Roane Counties, Tennessee *TEIC OT= 01:26:43.3 LAT= 35.610N LON= 84.761W DEP= 23.1 KM MDB= 3.1 NO= 33, GAP= 49 DEG, RMS RES= 0.10 SEC, Q= B, SQD= A/B ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.2 KM, AZ= -58 DEG; ERHMIN= 0.2 KM; ERZ= 0.6 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) RCT 30.8 163 P 01:26:49.70 ( 0.09 ) BHT 31.1 328 iPc :49.78 ( 0.04 ) CBT 31.8 104 P :49.78 ( 0.02 ) eS 01:26:54.32 (-0.17 ) ETT 42.0 139 iPc :51.21 ( 0.03 ) WMTN 44.6 206 iPd :51.50 (-0.02 ) GBTN 50.2 83 iPc :52.20 (-0.11 ) iS :58.30 (-0.60X) ORT 52.9 51 iPd :52.80 ( 0.08 ) iS :59.80 ( 0.20 ) TLT 55.3 128 P :53.24 ( 0.16 ) RHT 60.1 191 P :53.30 (-0.47 ) DCT 69.0 153 P :55.42 ( 0.29 ) eS :27:03.35 (-0.44 ) ANTN 75.4 326 iPc :56.00 (-0.10 ) GMG 83.3 174 iPc :57.20 (-0.16 ) eS :07.10 (-0.54 ) HPK 87.1 66 iP- :57.80 ( 0.02 ) iS :08.30 (-0.07 ) RCG 88.4 217 iPd :58.00 (-0.05 ) eS :08.80 (-0.03 ) TKL 89.5 86 iPc :58.21 ( 0.01 ) ONTN 100.8 16 iPd :59.77 (-0.18 ) PDTN 105.7 250 eP :27:00.74 ( 0.08 ) CRTN 105.7 51 ePd :00.60 (-0.01 ) WSSR 113.5 109 iPc :02.00 ( 0.02 ) eS :14.60 (-1.03X) BBG 118.9 133 iPc :02.90 ( 0.10 ) eS :15.60 (-1.44X) ABTN 125.7 284 ePc :03.95 ( 0.29 ) LMTN 126.1 75 eP :03.84 ( 0.04 ) LKGA 127.3 211 ePd :04.00 ( 0.02 ) CCVA 147.7 41 iPd :07.40 ( 0.32 ) RBNC 163.5 99 iPc :10.00 ( 0.33 ) SMTN 166.1 59 iPd :10.15 ( 0.22 ) RICH 178.9 78 eP :12.00 ( 0.09 ) eS :34.50 ( 1.69X) CHTN 213.2 59 ePd :16.67 (-0.36X) eS :43.62 ( 1.95X) SHTN 215.5 266 ePc :16.96 (-0.32X) iS :42.16 ( 0.06X) BGKY 221.4 315 ePc :18.15 ( 0.16X) eS :45.90 ( 2.57X) BRBC 224.5 86 eP :19.05 ( 0.41X) iS :45.67 ( 1.23X) TRYN 231.5 99 eP :20.45 ( 1.13X) SLTN 255.3 68 eP :21.82 (-0.29X) GFM 272.5 77 eP :24.56 ( 0.09X) BENN 280.9 90 eP :25.40 ( 0.03X) eS :28:01.60 ( 5.51X) PWLA 308.5 258 eP :29.00 ( 0.37X) iS :09.40 ( 7.67X) MOTN 311.2 292 eP :29.57 ( 0.61X) eS :06.67 ( 4.37X) PKNC 329.1 81 eP :31.90 ( 0.66X) PLVA 344.5 69 eP :32.90 (-0.32X) eS :07.00 (-2.67X) NATN 356.6 275 eP :29.80 (-4.71X) eS :08.60 (-3.31X) ----- *NEIC OT= 01:26:43.7 LAT= 35.606N LON= 84.759W DEP= 20.6 KM MD= 3.2 NO= 9 STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) BHT 31.1 328 P 01:26:49.78 (-0.5 ) ETT 41.1 138 iP :51.21 (-0.4 ) GBTN 50.0 82 iP :52.20 (-0.7 ) S 01:26:58.30 ( X) RSCP 74.5 270 eP :57.50 ( 0.8 ) iS :27:06.80 ( X) GMG 83.4 174 P :57.20 (-0.7 ) S :07.10 ( X) RCG 87.8 218 P :58.00 (-0.7 ) S :08.80 ( X) TKL 89.0 86 P :58.21 (-0.6 ) WSSR 113.4 108 P :27:02.00 (-0.6 ) S :14.60 ( X) BBG 119.0 133 P :02.90 (-0.5 ) S :15.60 ( X) ----- *GIT OT= 01:26:44.0 LAT= 35.603N LON= 84.760W DEP= 17.5 KM MDB= 3.1 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.3 KM, AZ= 42 DEG; ERHMIN= 0.1 KM; ELLIPSE AREA= 0.1 SQ KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) RCT 29.9 163 P 01:26:49.70 ( 0.10 ) CBT 31.6 103 P :49.78 (-0.05 ) S 01:26:54.32 ( 0.18 ) BHT 31.9 328 P :49.79 (-0.08 ) TLT 54.8 128 P :53.24 (-0.05 ) DCT 68.3 153 P :55.42 ( 0.03 ) S :27:03.55 (-0.23 ) ***** 8 JANUARY 1986; 07:10 - MECCA, TENNESSEE ***** *TEIC OT= 07:10:39.5 LAT= 35.372N LON= 84.499W DEP= 20.5 KM MDB= 0.9 NO= 12, GAP= 122 DEG, RMS RES= 0.05 SEC, Q= B, SQD= A/B ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.2 KM, AZ= -31 DEG; ERHMIN= 0.2 KM; ERZ= 0.5 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ETT 6.4 142 eP 07:10:43.10 (-0.02 ) RCT 15.0 259 P :43.80 ( 0.09 ) S 07:10:46.00 (-0.81X) CBT 19.9 21 P :44.20 (-0.03 ) S :47.70 (-0.02 ) DCT 36.0 168 P :46.30 (-0.04 ) S :50.50 (-0.86X) GBTN 41.8 39 eP :48.30 ( 1.15X) eS :52.80 ( 0.04 ) WMTN 45.3 252 ePc :47.59 (-0.06 ) eS :53.72 ( 0.09 ) RHT 47.7 227 P :48.00 (-0.01 ) S :53.50 (-0.76X) GMG 58.6 196 eP :51.70 ( 1.96X) eS :56.40 (-0.84X) ORT 62.2 16 eS :58.57 ( 0.56 ) BBG 83.5 131 eP :56.40 ( 2.86X) eS :11:03.90 ( 0.08 ) WSSR 84.4 97 eP :54.30 ( 0.63X) eS :04.00 (-0.04 ) ----- *GIT OT= 07:10:40.3 LAT= 35.349N LON= 84.498W DEP= 12.6 KM MDB= 1.0 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.4 KM, AZ= -28 DEG; ERHMIN= 0.2 KM; ELLIPSE AREA= 0.3 SQ KM) 4 Stations Used (NO= 8): RCT (Dmin= 14.9 km), CBT, DCT, and RHT See TEIC listing for arrival time data ***** 8 JANUARY 1986; 08:54 - MECCA, TENNESSEE ***** *TEIC OT= 08:54:18.4 LAT= 35.311N LON= 84.439W DEP= 15.4 KM MDB= 1.8 NO= 32, GAP= 46 DEG, RMS RES= 0.12 SEC, Q= A, SQD= A/A ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.2 KM, AZ= -5 DEG; ERHMIN= 0.2 KM; ERZ= 0.5 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ETT 2.2 320 eP 08:54:21.19 ( 0.07 ) RCT 20.5 281 P :22.80 ( 0.06 ) S 08:54:25.90 (-0.02 ) CBT 25.4 4 P :23.20 (-0.23 ) S :26.50 (-0.63X) DCT 28.5 176 P :23.70 (-0.21 ) S :27.90 (-0.05 ) GBTN 44.5 28 eP :26.10 (-0.21 ) eS :31.62 (-0.48 ) RHT 47.9 238 P :26.80 (-0.01 ) S :33.00 ( 0.02 ) WMTN 49.1 262 iP :27.03 ( 0.02 ) iS :32.95 (-0.36 ) GMG 54.0 203 eP :27.40 (-0.45 ) eS :33.70 (-1.07X) ORT 67.5 10 eP :30.05 ( 0.22 ) eS :37.97 (-0.23 ) TKL 71.6 57 eP :39.31 ( 8.86X) BBG 75.0 130 eP :30.90 (-0.20 ) eS :40.60 ( 0.21 ) BHT 75.1 323 eP :31.28 ( 0.23 ) WSSR 78.4 92 eP :31.70 ( 0.07 ) eS :41.40 ( 0.10 ) RCG 90.8 246 eP :33.60 ( 0.19 ) eS :44.20 (-0.18 ) CPO 107.4 287 eP :35.97 ( 0.00 ) eS :48.94 ( 0.13 ) CRTN 112.5 29 eP :36.86 ( 0.19 ) LMTN 113.3 55 eP :36.55 (-0.31 ) eS :50.05 (-0.31 ) ANTN 119.4 323 eP :37.80 ( 0.00 ) LKGA 121.3 231 eP :38.01 (-0.09 ) eS :52.95 ( 0.45X) TVG 130.2 218 P :40.60 ( 1.18X) RICH 161.6 65 eP :45.79 ( 1.49X) eS :55:03.23 ( 0.00 ) ABTN 164.2 293 eP :44.68 ( 0.10 ) eS :04.12 ( 0.40 ) ----- *GIT OT= 08:54:18.4 LAT= 35.323N LON= 84.417W DEP= 15.1 KM MDB= 1.9 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.3 KM, AZ= -31 DEG; ERHMIN= 0.2 KM; ELLIPSE AREA= 0.3 SQ KM) 5 Stations Used (NO= 9): RCT (Dmin= 22.4 km), CBT, DCT, RHT, and TVG See TEIC listing for arrival time data ***** 8 JANUARY 1986; 15:39 - DECATUR, TENNESSEE ***** *TEIC OT= 15:39:59.1 LAT= 35.604N LON= 84.757W DEP= 20.3 KM MDB= 1.2 NO= 11, GAP= 124 DEG, RMS RES= 0.10 SEC, Q= B, SQD= B/B ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.6 KM, AZ= 3 DEG; ERHMIN= 0.2 KM; ERZ= 1.9 KM; Q= B) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) BHT 31.9 328 eP 15:40:05.49 ( 0.09 ) eS 15:40:10.00 (-0.03 ) GBTN 49.9 82 eP :05.10 (-2.83X) eS :14.40 (-0.01 ) ORT 53.1 50 eP :08.40 (-0.01 ) eS :16.51 ( 1.28X) CPO 73.7 269 eP :11.80 ( 0.26 ) eS :20.52 (-0.14 ) GMG 82.7 175 eP :13.40 ( 0.44 ) eS :23.20 ( 0.08 ) TKL 89.2 86 eS :24.29 (-0.41 ) WSSR 113.0 108 eS :31.10 (-0.11 ) ABTN 126.2 285 eS :34.10 (-0.30 ) ***** 12 JANUARY 1986; 01:35 - TRION, GEORGIA ***** *TEIC OT= 01:35:30.6 LAT= 34.534N LON= 85.288W DEP= 10.4 KM MDB= 1.8 NO= 10, GAP= 121 DEG, RMS RES= 0.12 SEC, Q= B, SQD= B/B ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.8 KM, AZ= 58 DEG; ERHMIN= 0.4 KM; ERZ= 1.0 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) TVG 17.4 184 P 01:35:34.10 (-0.05 ) S 01:35:36.90 ( 0.17 ) LKGA 19.6 301 iPc :34.45 (-0.07 ) iS :37.41 ( 0.04 ) HGA 59.6 240 P :41.00 ( 0.06 ) S :48.10 (-0.36 ) GMG 67.3 57 eP :41.20 (-1.09X) eS :49.90 (-0.90X) RHT 70.9 31 P :43.30 ( 0.52X) S :52.50 ( 0.84X) WMTN 84.3 20 eP :43.90 (-1.03X) eS :54.02 (-1.35X) PDTN 96.8 328 eS :58.39 (-0.28X) DCT 98.3 54 P :47.90 ( 0.82X) S :59.90 ( 0.81X) RCT 106.7 32 P :48.90 ( 0.56X) S :36:02.30 ( 1.03X) MSAL 131.6 286 eS :08.15 ( 0.27 ) BBG 140.5 74 eP :53.60 (-0.06 ) eS :08.70 (-1.76X) GBTN 159.5 38 eS :15.60 ( 0.33 ) ABTN 167.6 334 eS :17.95 ( 0.60X) WSSR 176.7 62 eP :59.20 (-0.01 ) eS :19.00 (-1.08X) ----- *GIT OT= 01:35:30.9 LAT= 34.478N LON= 85.268W DEP= 17.3 KM MDB= 1.4 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 1.2 KM, AZ= -43 DEG; ERHMIN= 0.4 KM; ELLIPSE AREA= 1.3 SQ KM) 6 Stations Used (NO= 12): TVG (Dmin= 11.6 km), HGA, RHT, DCT, RCT, and WSSR See TEIC listing for arrival time data ***** 17 JANUARY 1986; 00:46 - FARNER, TENNESSEE ***** *TEIC OT= 00:46:00.0 LAT= 35.192N LON= 84.368W DEP= 17.0 KM MDB= 0.5 NO= 10, GAP= 182 DEG, RMS RES= 0.10 SEC, Q= C, SQD= B/D ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.5 KM, AZ= 52 DEG; ERHMIN= 0.3 KM; ERZ= 1.1 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) DCT 16.0 197 P 00:46:03.95 ( 0.00 ) S 00:46:06.10 (-0.77X) ETT 16.8 332 eP :04.21 ( 0.16 ) eS :06.99 (-0.05 ) RCT 31.6 303 P :05.90 (-0.06 ) S :10.00 (-0.35 ) CBT 38.8 353 S :11.90 (-0.33 ) RHT 48.5 255 P :14.20 ( 5.69X) GBTN 54.5 15 eP :09.50 ( 0.08 ) eS :15.90 (-0.43 ) BBG 61.9 125 eP :11.30 ( 0.61X) eS :18.50 (-0.03 ) WSSR 72.6 82 eP :12.80 ( 0.49X) eS :21.30 (-0.04 ) ----- *GIT OT= 00:46:00.7 LAT= 35.194N LON= 84.392W DEP= 11.4 KM MDB= 1.1 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.3 KM, AZ= 24 DEG; ERHMIN= 0.2 KM; ELLIPSE AREA= 0.2 SQ KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) DCT 15.7 189 P 00:46:03.95 ( 0.08 ) S 00:46:06.10 (-0.13 ) RCT 29.7 304 P :05.90 (-0.01 ) S :10.00 ( 0.24 ) CBT 38.4 356 S :11.90 (-0.19 ) RHT 46.6 254 S :14.20 (-0.13 ) ***** 25 JANUARY 1986; 05:14 - GREEN HILL, ALABAMA ***** *GIT OT= 05:14:56.7 LAT= 34.944N LON= 87.410W DEP= 10.0 KM, FXD MDB= 1.9 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 2.7 KM, AZ= 82 DEG; ERHMIN= 0.7 KM; ELLIPSE AREA= 5.6 SQ KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) PWLA 59.9 274 P 05:15:05.80 (-1.09 ) S 05:15:11.80 (-2.48 ) OCA 96.6 112 P :12.90 ( 0.05 ) S :25.00 ( 0.40 ) HVA 117.7 150 S :30.00 (-0.53 ) HGA 162.7 118 P :23.20 (-0.40 ) EBZ 178.2 277 P :24.70 (-1.41 ) RCG 188.3 89 P :27.00 (-0.75 ) TVG 203.8 108 P :29.00 (-1.26 ) RHT 231.0 86 P :34.00 (-0.69 ) S :16:01.70 (-0.72 ) RCT 253.8 80 S :08.00 (-0.84 ) DCT 273.1 87 S :13.50 (-0.78 ) ***** 27 JANUARY 1986; 06:44 - SEVIERVILLE, TENNESSEE ***** *GIT OT= 06:44:26.6 LAT= 35.885N LON= 83.649W DEP= 15.0 KM, FXD MDB= 2.6 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.3 KM, AZ= -42 DEG; ERHMIN= 0.2 KM; ELLIPSE AREA= 0.2 SQ KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) RCT 109.8 237 P 06:44:45.10 ( 0.19 ) S 06:44:58.40 ( 0.13 ) DCT 115.9 217 P :46.20 ( 0.30 ) S :45:00.00 ( 0.02 ) RHT 143.8 232 P :50.00 (-0.41 ) S :07.80 ( 0.00 ) LDV 212.3 155 P :45:01.60 ( 0.08 ) S :26.90 (-0.16 ) TVG 226.1 222 P :03.50 (-0.27 ) S :31.10 ( 0.15 ) ----- *TEIC OT= 06:44:26.7 LAT= 35.926N LON= 83.635W DEP= 21.0 KM MDB= 2.7 NO= 21, GAP= 86 DEG, RMS RES= 0.14 SEC, Q= A, SQD= A/A ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.4 KM, AZ= 6 DEG; ERHMIN= 0.3 KM; ERZ= 0.8 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) LMTN 20.8 102 iPc 06:44:31.56 (-0.10 ) HPK 22.1 270 iPd :31.90 ( 0.20 ) iS 06:44:35.40 ( 0.04 ) TKL 32.3 203 eP :33.10 ( 0.04 ) CRTN 35.6 329 iPc :33.37 (-0.10 ) GBTN 59.6 241 iPd :36.80 (-0.22 ) iS :44.40 (-0.16 ) ORT 60.5 268 iPc :37.30 ( 0.13 ) iS :44.53 (-0.30 ) RICH 73.6 90 eP :39.60 ( 0.38 ) eS :49.10 ( 0.73X) VHTN 91.4 55 ePd :41.81 (-0.07 ) ONTN 95.3 311 iPc :42.37 (-0.10 ) eS :54.14 ( 0.14 ) RCT 113.1 236 P :45.10 (-0.05 ) S :45:04.20 ( 5.56X) BBG 117.8 188 eP :46.00 (-0.01 ) eS :00.30 ( 0.18 ) DCT 120.1 217 P :46.20 (-0.05 ) S :00.00 (-0.54X) WMTN 142.8 239 eP :49.78 ( 0.09 ) ANTN 146.5 281 ePc :49.86 (-0.43X) RHT 147.2 231 P :50.00 (-0.36X) S :07.80 ( 0.16X) SLTN 147.8 67 eP :50.65 ( 0.22 ) GMG 150.9 219 eP :51.40 ( 0.37 ) eS :09.80 ( 0.99X) CPO 178.9 259 eP :55.30 ( 0.05 ) eS :16.90 ( 0.80X) PDTN 213.4 251 eP :45:00.50 ( 0.01X) eS :26.36 ( 1.19X) LDV 215.3 156 P :01.60 ( 0.84X) S :26.90 ( 1.26X) BEV 219.8 158 P :02.60 ( 1.23X) S :29.80 ( 3.11X) LKGA 221.0 230 eP :01.81 ( 0.21X) ABTN 223.4 270 eP :02.00 ( 0.21X) eS :28.62 ( 1.20X) TVG 229.4 222 P :03.50 ( 0.93X) S :31.20 ( 2.43X) PLVA 236.9 69 eP :02.70 (-0.96X) eS :30.20 (-0.45X) CH6 248.9 156 P :00.00 (-4.91X) S :38.20 ( 5.39X) ETG 293.4 175 S :49.70 ( 7.43X) ***** 27 JANUARY 1986; 06:46 - SEVIERVILLE, TENNESSEE ***** *GIT OT= 06:46:00.3 LAT= 35.878N LON= 83.624W DEP= 15.0 KM, FXD MDB= 1.9 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 1.1 KM, AZ= -48 DEG; ERHMIN= 0.2 KM; ELLIPSE AREA= 0.5 SQ KM) 4 Stations Used (NO= 6): RCT (Dmin= 111.3 km), DCT, RHT, and TVG See TEIC listing for arrival time data ----- *TEIC OT= 06:46:00.4 LAT= 35.918N LON= 83.625W DEP= 15.4 KM MDB= 2.2 NO= 12, GAP= 187 DEG, RMS RES= 0.09 SEC, Q= C, SQD= B/D ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.5 KM, AZ= -3 DEG; ERHMIN= 0.3 KM; ERZ= 1.3 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) LMTN 19.8 99 iP 06:46:04.79 ( 0.06 ) HPK 23.0 272 iP :05.00 (-0.07 ) iS 06:46:08.50 ( 0.02 ) TKL 31.8 205 eP :06.29 (-0.12 ) eS :10.81 ( 0.01 ) GBTN 59.9 242 eP :09.90 (-0.78X) eS :17.10 (-1.09X) CCVA 76.1 357 eP :22.05 ( 8.87X) RCT 113.4 236 P :19.00 ( 0.14 ) S :32.50 ( 0.16 ) BBG 117.1 188 eP :20.40 ( 0.83X) eS :33.20 (-0.36 ) DCT 119.9 217 P :19.80 (-0.10 ) S :34.20 ( 0.07 ) RHT 147.3 231 S :41.80 ( 0.47 ) GMG 150.8 219 eP :26.60 ( 1.90X) eS :42.40 (-0.03 ) TVG 229.3 222 S :47:04.70 ( 1.62X) ***** 28 JANUARY 1986; 14:23 - HENDRIX, ALABAMA ***** *GIT OT= 14:23:02.8 LAT= 34.009N LON= 86.345W DEP= 24.3 KM MDB= 0.9 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.2 KM, AZ= -64 DEG; ERHMIN= 0.2 KM; ELLIPSE AREA= 0.1 SQ KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) HVA 39.2 273 P 14:23:10.30 ( 0.08 ) S 14:23:15.60 (-0.06 ) HGA 53.7 59 P :12.30 ( 0.02 ) S :19.00 (-0.23 ) OCA 67.6 353 P :14.30 (-0.03 ) S :22.80 ( 0.02 ) TVG 104.2 67 P :19.90 (-0.03 ) S :32.80 ( 0.30 ) ***** 29 JANUARY 1986; 07:38 - WILDWOOD, TENNESSEE ***** *TEIC OT= 07:38:36.7 LAT= 35.836N LON= 83.862W DEP= 18.5 KM MDB= -0.1 NO= 8, GAP= 155 DEG, RMS RES= 0.12 SEC, Q= C, SQD= C/C ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.7 KM, AZ= -14 DEG; ERHMIN= 0.5 KM; ERZ= 3.2 KM; Q= C) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) TKL 21.3 158 eP 07:38:41.50 ( 0.09 ) eS 07:38:44.90 ( 0.02 ) GBTN 36.8 239 eS :48.20 (-0.32 ) CRTN 40.4 3 eP :44.16 ( 0.14 ) eS :49.36 (-0.03 ) ORT 40.8 282 eP :44.50 ( 0.37 ) eS :49.60 ( 0.02 ) LMTN 41.4 82 eS :49.58 (-0.19 ) ***** 30 JANUARY 1986; 11:45 - MASCOT, TENNESSEE ***** *TEIC OT= 11:45:32.6 LAT= 36.099N LON= 83.748W DEP= 10.1 KM MDB= 1.9 NO= 14, GAP= 95 DEG, RMS RES= 0.09 SEC, Q= B, SQD= A/B ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.4 KM, AZ= -66 DEG; ERHMIN= 0.2 KM; ERZ= 0.7 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) CRTN 14.0 323 ePd 11:45:35.98 ( 0.39 ) iS 11:45:37.65 (-0.10 ) HPK 22.5 212 eP :36.90 ( 0.04 ) eS :40.00 ( 0.05 ) LMTN 38.5 127 iPc :39.46 (-0.01 ) eS :44.70 ( 0.22X) TKL 48.9 183 eP :41.10 (-0.07 ) eS :46.99 (-0.41 ) ORT 54.4 248 eP :42.06 (-0.01 ) eS :48.84 (-0.13 ) SMTN 59.8 58 eP :43.05 ( 0.05 ) eS :46.51 (-4.06X) GBTN 63.6 221 eP :43.20 (-0.38X) eS :50.80 (-0.78X) ONTN 75.6 304 ePc :45.13 (-0.45X) eS :54.82 (-0.22X) RICH 86.1 103 eP :47.20 (-0.08 ) eS :57.30 (-0.69X) VHTN 91.3 68 eP :48.14 ( 0.10 ) eS :59.30 ( 0.00X) ANTN 133.8 274 eP :54.08 (-0.47X) BBG 136.0 182 eP :55.90 ( 0.92X) eS :46:11.40 ( 0.11 ) WMTN 145.6 230 eP :56.59 ( 0.26 ) eS :14.56 ( 0.92X) GMG 160.7 212 eS :18.70 ( 0.92X) RCG 191.3 230 eS :33.10 ( 7.34X) ***** 2 FEBRUARY 1986; 21:50 - RICHMOND, VIRGINIA ***** *VTSO OT= 21:50:48.1 LAT= 37.603N LON= 77.388W DEP= 16.1 KM MDB= 1.3 NO= 14, GAP= 189 DEG, RMS RES= 0.32 SEC, Q= D, SQD= C/D ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 1.5 KM, AZ= 83 DEG; ERHMIN= 0.8 KM; ERZ= 34.7 KM; Q= D) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) NA5 54.7 326 iPc 21:50:57.59 ( 0.21 ) iS 21:51:04.20 ( 0.07 ) NA12 60.5 314 iPc :58.42 ( 0.16 ) iS :05.82 ( 0.16 ) NA2 66.2 332 iPc :59.36 ( 0.22 ) iS :07.22 ( 0.05 ) CNV 66.9 1 eP :58.25 (-0.99 ) eS :07.21 (-0.13 ) GHV 66.9 289 eP :59.57 ( 0.32 ) eS :06.81 (-0.55 ) PBV 70.0 191 iPc :59.93 ( 0.20 ) iS :07.89 (-0.28 ) FRV 96.8 243 eP :51:04.14 ( 0.29 ) eS :14.57 (-0.70X) CVL 103.4 294 eS :16.86 (-0.16 ) ***** 2 FEBRUARY 1986; 22:19 - PARKSVILLE, TENNESSEE ***** *TEIC OT= 22:19:36.5 LAT= 35.099N LON= 84.708W DEP= 16.6 KM MDB= 1.4 NO= 21, GAP= 70 DEG, RMS RES= 0.12 SEC, Q= A, SQD= A/A ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.2 KM, AZ= 43 DEG; ERHMIN= 0.2 KM; ERZ= 0.6 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) RHT 16.1 262 P 22:19:40.45 ( 0.00 ) S 22:19:43.35 ( 0.04 ) GMG 26.4 173 eP :41.70 (-0.21 ) eS :45.90 ( 0.06 ) DCT 26.8 101 P :42.00 ( 0.13 ) S :46.00 ( 0.23 ) RCT 27.6 9 P :42.00 ( 0.05 ) S :45.80 (-0.11 ) WMTN 29.3 304 iPc :42.23 ( 0.03 ) iS :46.17 (-0.18 ) RCG 60.0 257 eP :46.80 (-0.05 ) eS :54.20 (-0.19 ) GBTN 77.4 36 eP :50.20 ( 0.71X) eS :58.60 (-0.35 ) BBG 85.6 107 eP :50.80 (-0.06 ) eS :20:00.10 (-1.23X) LKGA 87.6 233 eP :51.09 (-0.01 ) eS :01.71 (-0.03 ) CPO 95.8 305 eS :04.10 ( 0.20 ) TVG 96.9 214 P :53.10 ( 0.63X) S :03.50 (-0.61X) WSSR 104.8 79 eP :54.00 ( 0.18 ) eS :05.60 (-0.85X) PDTN 105.8 281 eP :54.00 ( 0.16 ) eS :06.68 ( 0.19 ) ANTN 128.1 338 eP :57.46 ( 0.16 ) ----- *GIT OT= 22:19:36.6 LAT= 35.114N LON= 84.713W DEP= 18.6 KM MDB= 1.0 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.3 KM, AZ= -55 DEG; ERHMIN= 0.3 KM; ELLIPSE AREA= 0.3 SQ KM) 4 Stations Used (NO= 7): RHT (Dmin= 16.0 km), RCT, DCT, and TVG See TEIC listing for arrival time data ***** 3 FEBRUARY 1986; 00:53 - BOYDS CREEK, TENNESSEE ***** *TEIC OT= 00:53:06.8 LAT= 35.928N LON= 83.634W DEP= 19.1 KM MDB= 1.3 NO= 13, GAP= 86 DEG, RMS RES= 0.11 SEC, Q= B, SQD= A/B ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.4 KM, AZ= 82 DEG; ERHMIN= 0.3 KM; ERZ= 1.0 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) LMTN 20.8 102 eP 00:53:11.72 ( 0.13 ) eS 00:53:14.97 (-0.11 ) HPK 22.1 270 eP :11.80 ( 0.14 ) eS :15.20 ( 0.00 ) TKL 32.5 203 eP :13.25 ( 0.14 ) eSd :17.55 (-0.15 ) CRTN 35.5 328 ePc :13.40 (-0.07 ) eS :18.22 (-0.11 ) WSSR 72.3 176 eP :19.10 (-0.08 ) eS :27.60 (-0.60 ) VHTN 91.3 55 eP :21.91 (-0.07 ) BBG 118.0 188 eP :24.10 (-2.06X) eS :40.30 ( 0.03 ) RCG 188.1 236 eP :36.70 (-0.07 ) ***** 6 FEBRUARY 1986; 08:23 - PINERIDGE, SOUTH CAROLINA ***** *USC OT= 08:23:07.0 LAT= 33.902N LON= 81.065W DEP= 0.6 KM MDL= 1.7 NO= 18, GAP= 232 DEG, RMS RES= 0.09 SEC, Q= D, SQD= C/D ERROR ESTIMATES (HYPO71) (ERH= 0.5 KM; ERZ= 99.9 KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) 002 35.7 335 Pd 08:23:12.80 (-0.08 ) S 08:23:16.70 (-0.38 ) JSC 45.6 337 Pd :14.42 (-0.01 ) S :19.65 (-0.10 ) 005 47.5 328 S :20.27 (-0.01 ) 06A 48.2 333 S :20.58 ( 0.13 ) 001 52.2 336 S :21.67 ( 0.09 ) MTT 55.5 252 P :16.02 (-0.00 ) S :22.50 ( 0.01 ) 007 57.2 335 Pd :16.45 ( 0.15 ) S :22.95 (-0.02 ) 004 60.0 347 P :16.75 (-0.00 ) S :23.75 (-0.00 ) 003 61.6 324 P- :17.10 ( 0.10 ) S :24.05 (-0.13 ) 008 64.5 331 P :17.56 ( 0.08 ) S :24.98 (-0.02 ) LHS 68.2 20 Pu :18.00 (-0.07 ) ***** 8 FEBRUARY 1986; 03:09 - HENSON GAP, TENNESSEE ***** *TEIC OT= 03:09:18.9 LAT= 35.339N LON= 85.254W DEP= 22.1 KM MDB= 1.0 NO= 18, GAP= 68 DEG, RMS RES= 0.09 SEC, Q= B, SQD= A/B ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.2 KM, AZ= 40 DEG; ERHMIN= 0.2 KM; ERZ= 0.7 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) WMTN 27.5 111 eP- 03:09:24.86 ( 0.11 ) eS 03:09:28.95 (-0.07 ) CPO 40.4 315 eP+ :26.67 ( 0.15 ) eS :32.07 (-0.01 ) RCG 41.3 192 eP :26.60 (-0.03 ) eS :32.30 ( 0.03 ) PDTN 54.6 263 ePc :28.47 (-0.07 ) eS :35.48 (-0.10 ) ETT 72.7 91 ePd :31.39 ( 0.10 ) eS :33.04 (-7.28X) GMG 75.0 135 eP :32.10 ( 0.39 ) eS :40.90 (-0.14 ) LKGA 81.8 194 eP :32.71 ( 0.03 ) eS :42.90 ( 0.16 ) ANTN 92.4 1 eP :34.13 (-0.15 ) eS :46.16 ( 0.66X) ABTN 98.4 308 eS :46.88 (-0.05 ) GBTN 101.4 69 eP :35.60 ( 0.00 ) eS :48.30 ( 0.51X) BBG 141.3 111 eP :45.70 ( 3.86X) eS :57.90 (-0.67X) WSSR 152.6 92 eP :43.40 (-0.16 ) eS :10:01.20 (-0.36 ) ***** 13 FEBRUARY 1986; 11:35 - OLD PICKENS, SOUTH CAROLINA ***** *NEIC Felt (V) at Central, Longcreek, Walhalla, and Westminster, SC, and Bowersville, GA. Felt (IV) at Fair Play, Liberty, Newry, Piedmont, Richland Salem, Six Mile, Tomassee, and West Union, SC, and Martin, GA, and Cedar Mountain and Sylva, NC. Felt (III) at Canon, Franklin Springs, and Rabun, GA, and Highlands and Hendersonville, NC. *TEIC OT= 11:35:45.3 LAT= 34.794N LON= 82.910W DEP= 2.5 KM MDB= 3.5 NO= 15, GAP= 106 DEG, RMS RES= 0.09 SEC, Q= C, SQD= B/D ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.4 KM, AZ= 85 DEG; ERHMIN= 0.3 KM; ERZ= 2.1 KM; Q= B) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) RBNC 62.8 354 iPc 11:35:56.35 (-0.09 ) LDV 74.5 164 P :58.20 ( 0.02 ) S 11:36:06.90 (-0.70X) BEV 79.9 168 P :59.10 ( 0.02 ) S :07.90 (-1.26X) TRYN 80.2 49 iPd :59.31 ( 0.10 ) BBG 82.9 276 iP :59.20 (-0.51X) eS :09.80 (-0.44 ) PRM 93.6 147 P :36:01.30 (-0.05 ) BRBC 119.2 28 eP :04.91 (-0.80X) CHF 120.4 137 P :01.30 (-4.36X) S :11.10 (-9.44X) TKL 124.0 321 eP :06.44 ( 0.21 ) eS :29.70 ( 8.18X) RICH 125.1 4 eP :10.55 ( 4.07X) eS :29.60 ( 7.65X) DCT 140.9 282 P :08.80 (-0.04 ) S :25.50 (-0.54 ) BENN 142.3 53 ePc :09.01 (-0.10 ) ETT 152.8 293 iPc :10.55 (-0.12 ) GBTN 152.9 310 eP :10.80 ( 0.15 ) eS :35.40 ( 6.22X) GMG 161.2 273 eP :11.60 (-0.43X) eS :36.40 ( 4.85X) GFM 177.1 34 iPd :14.95 ( 0.41X) SMTN 177.9 352 eP :15.75 ( 1.21X) PKNC 211.2 48 iPd :20.51 ( 0.86X) CCVA 212.0 341 ePd :20.25 ( 0.52X) BHT 218.8 303 eP :21.23 ( 0.42X) RCG 223.8 276 eP :21.60 ( 0.07 ) eS :48.00 ( 0.01 ) PLVA 261.1 37 eP :26.30 (-0.91X) eS :37:02.10 ( 4.28X) PWLA 471.5 274 eP :52.60 (-0.15X) ----- *NEIC OT= 11:35:45.6 LAT= 34.755N LON= 82.943W DEP= 5.0 KM,FXD mb(Lg)= 3.5 NO= 22, STANDARD DEVIATION= 0.6 SEC STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) RBNC 66.7 357 P 11:35:57.75 ( 0.1 ) BBG 80.1 280 P :59.30 (-0.7 ) S 11:36:08.60 ( X) TRYN 82.3 48 P :36:00.60 ( 0.2 ) CHF 87.8 158 P :01.30 ( 0.0 ) S :11.10 ( X) PRM 91.2 144 iP :01.60 (-0.4 ) CH6 104.5 158 P :03.20 (-0.7 ) S :11.10 ( X) TKL 125.7 323 eP :06.20 (-1.0 ) RICH 130.1 5 P :07.10 (-0.8 ) DCT 139.0 284 P :08.80 (-0.4 ) S :27.20 ( X) BENN 147.9 52 P :10.40 (-0.2 ) ETT 152.3 295 P :11.60 ( 0.4 ) JSC 163.5 108 eP :12.50 (-0.2 ) ETG 166.8 193 P :13.80 ( 0.7 ) S :34.00 ( X) RCT 170.1 293 Pn :14.00 ( 0.5 ) S :36.90 ( X) RHT 181.3 282 Pn :15.40 ( 0.5 ) S :38.50 ( X) GFM 182.4 34 eP :15.10 (-0.2 ) LHS 197.9 98 eP :17.80 ( 0.6 ) RSCP 258.0 292 eP :26.10 ( 1.0 ) HGA 272.4 259 Pn :29.20 ( 2.4 X) S :37:02.70 ( X) SGS 283.6 127 eP :28.00 (-0.2 ) HBF 311.4 130 P :38.60 ( 6.7 X) TDA 314.7 246 Pn :34.50 ( 2.3 X) S :12.90 ( X) ZIN 315.8 125 P :34.00 ( 1.7 X) OCA 320.3 268 Pn :35.80 ( 2.8 X) NAV 343.6 34 eP :36.20 ( 0.2 ) BLA 354.7 39 eP :37.80 ( 0.4 ) HVA 361.4 258 Pn :42.90 ( 4.8 X) S :24.80 ( X) CVL 538.2 47 eP :37:01.00 ( 0.2 ) ***** 19 FEBRUARY 1986; 02:43 - KENSINGTON, GEORGIA ***** *TEIC OT= 02:43:37.0 LAT= 34.855N LON= 85.284W DEP= 14.9 KM MDB= 1.8 NO= 13, GAP= 93 DEG, RMS RES= 0.12 SEC, Q= D, SQD= C/D ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.3 KM, AZ= -17 DEG; ERHMIN= 0.2 KM; ERZ= 46.7 KM; Q= D) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) LKGA 30.9 214 ePd 02:43:42.19 (-0.70X) eS 02:43:47.60 ( 0.41X) RHT 44.3 56 P :45.60 ( 0.71X) S :51.20 ( 0.55X) WMTN 52.0 33 eP+ :46.25 ( 0.16 ) eS :53.37 ( 0.65X) TVG 53.0 182 P :45.90 (-0.33 ) S :52.00 (-0.97X) GMG 56.1 89 eP :46.80 ( 0.00 ) eS :52.90 (-1.06X) PDTN 69.4 312 ePc :48.65 (-0.10 ) eS :57.26 (-0.07 ) DCT 82.0 74 P :50.90 ( 0.21 ) S :44:00.60 (-0.09 ) HGA 83.8 218 P :51.00 ( 0.05 ) S :01.20 ( 0.07 ) CPO 86.2 342 eP :51.81 ( 0.47X) OCA 108.8 256 S :07.80 ( 0.07 ) CBT 109.3 46 P :52.00 (-2.86X) GBTN 132.8 47 eP :58.50 ( 0.05 ) eS :14.30 ( 0.19 ) BBG 134.7 89 eP :44:00.60 ( 1.73X) eS :14.40 (-0.44X) ABTN 136.8 327 eP :43:59.50 ( 0.48X) eS :16.10 ( 1.01X) ORT 147.0 37 eS :20.45 ( 2.57X) WSSR 162.5 73 eP :44:05.20 ( 2.06X) eS :22.90 ( 0.68X) TKL 163.8 57 eS :24.20 ( 1.88X) SHTN 181.1 292 eP :06.10 ( 0.25 ) eS :27.36 ( 0.45X) CRTN 198.5 41 eP :09.47 ( 1.00X) ----- *GIT OT= 02:43:37.5 LAT= 34.818N LON= 85.269W DEP= 15.3 KM MDB= 1.5 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.6 KM, AZ= -45 DEG; ERHMIN= 0.3 KM; ELLIPSE AREA= 0.5 SQ KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) RHT 45.5 51 P 02:43:45.60 ( 0.25 ) S 02:43:51.20 ( 0.10 ) TVG 49.0 184 P :45.90 ( 0.03 ) S :52.00 (-0.01 ) HGA 81.6 221 P :51.00 ( 0.00 ) S :44:01.20 ( 0.31 ) DCT 81.8 71 P :50.90 (-0.13 ) S :00.60 (-0.35 ) OCA 109.4 258 S :07.80 (-0.73 ) CBT 111.0 44 P :56.20 ( 0.53 ) ***** 19 FEBRUARY 1986; 07:57 - LOUISVILLE, TENNESSEE ***** *TEIC OT= 07:57:11.3 LAT= 35.833N LON= 84.106W DEP= 11.4 KM MDB= 1.3 NO= 17, GAP= 95 DEG, RMS RES= 0.11 SEC, Q= B, SQD= A/B ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.3 KM, AZ= 0 DEG; ERHMIN= 0.2 KM; ERZ= 0.5 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ORT 19.9 295 iPc 07:57:15.34 ( 0.10 ) iS 07:57:18.01 (-0.12 ) GBTN 20.8 207 eP :15.40 ( 0.03 ) iS :18.40 ( 0.03 ) HPK 22.9 63 ePd :16.00 ( 0.35 ) eS :19.00 ( 0.16 ) TKL 35.8 123 eP :17.80 ( 0.09 ) eS :22.30 (-0.11 ) CBT 43.3 221 P :18.80 (-0.12 ) S :24.10 (-0.40X) CRTN 47.2 30 ePc :19.47 (-0.04 ) LMTN 63.3 84 eS :29.50 (-0.74X) WSSR 78.0 142 eP :24.60 (-0.08 ) eS :33.30 (-1.17X) ONTN 78.1 337 eP :24.01 (-0.58X) eS :33.50 (-0.82X) DCT 91.0 198 P :27.00 ( 0.45X) S :37.90 ( 0.19 ) WMTN 102.0 231 eP :28.38 ( 0.16 ) eS :44.78 ( 4.19X) ANTN 108.2 291 eP :28.88 (-0.32 ) RHT 109.5 220 P :29.80 ( 0.44X) S :42.80 ( 0.24 ) BBG 109.7 166 eP :35.20 ( 5.66X) eS :42.70 (-0.16 ) RICH 116.6 85 eS :45.50 ( 0.90X) GMG 119.3 206 eS :45.10 (-0.23 ) TVG 194.9 214 S :58:06.70 ( 1.51X) ----- *GIT OT= 07:57:11.9 LAT= 35.818N LON= 84.105W DEP= 10.8 KM MDB= 1.5 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.3 KM, AZ= -30 DEG; ERHMIN= 0.2 KM; ELLIPSE AREA= 0.2 SQ KM) 9 Stations Used (NO= 15): GBTN (Dmin= 19.4 km), TKL, CBT, WSSR, DCT, RHT RICH, GMG, and TVG See TEIC listing for arrival time data ***** 22 FEBRUARY 1986; 10:20 - MEADOW, TENNESSEE ***** *TEIC OT= 10:20:15.1 LAT= 35.675N LON= 84.148W DEP= 9.9 KM MDB= 0.5 NO= 12, GAP= 135 DEG, RMS RES= 0.13 SEC, Q= B, SQD= A/C ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.4 KM, AZ= -64 DEG; ERHMIN= 0.3 KM; ERZ= 0.8 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) GBTN 5.8 260 eP 10:20:17.00 (-0.13 ) eS 10:20:20.90 ( 2.29X) ORT 29.6 331 ePd :20.71 ( 0.22 ) iS :24.34 (-0.08 ) HPK 37.0 41 eS :26.40 (-0.02 ) ETT 47.7 216 eS :29.80 ( 0.24 ) CRTN 64.5 25 eP :25.72 (-0.44 ) eS :34.22 (-0.01 ) WSSR 68.0 130 eS :35.60 ( 0.11 ) WMTN 88.6 238 eP :30.10 ( 0.01 ) eS :40.86 (-0.17 ) BBG 94.0 161 eP :31.10 ( 0.06 ) eS :42.50 (-0.18 ) CCVA 111.7 23 P :39.28 ( 5.64X) ***** 26 FEBRUARY 1986; 21:53 - SUGAR GROVE, WEST VIRGINIA ***** *VTSO OT= 21:53:20.8 LAT= 38.507N LON= 79.292W DEP= 11.0 KM MDB= 2.3 NO= 8, GAP= 254 DEG, RMS RES= 0.57 SEC, Q= D, SQD= D/D ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 7.6 KM, AZ= -12 DEG; ERHMIN= 3.5 KM; ERZ= 12.9 KM; Q= D) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) BV1 48.7 222 ePu 21:53:28.29 (-0.72 ) eS 21:53:34.80 (-0.21 ) BV3 51.1 234 ePu :29.29 (-0.09 ) eS? :36.08 ( 0.42 ) BV2 68.5 233 ePu :31.79 (-0.40 ) eS :41.05 ( 0.53 ) CVL 93.3 128 eP :37.26 ( 1.05 ) eS :46.62 (-0.83 ) GHV 130.6 127 eP :45.03 ( 3.06X) eS :57.21 (-0.10X) NA12 136.7 115 eP :44.60 ( 1.69X) eS :54:00.41 ( 1.48X) NA2 141.6 107 eP :45.98 ( 2.32X) eS? :02.79 ( 2.57X) NA5 146.9 112 eP? :44.81 ( 0.33X) eS :02.04 ( 0.41X) VWV 150.6 220 ePc :47.05 ( 1.96X) FRV 166.4 150 eP? :45.61 (-1.55X) eS :05.41 (-0.90X) ***** 1 MARCH 1986; 03:51 - TURTLETOWN, TENNESSEE ***** *GIT OT= 03:51:58.6 LAT= 35.181N LON= 84.342W DEP= 19.4 KM MDB= 0.3 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.2 KM, AZ= 22 DEG; ERHMIN= 0.1 KM; ELLIPSE AREA= 0.1 SQ KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) DCT 15.7 207 P 03:52:02.60 (-0.08 ) S 03:52:05.80 ( 0.14 ) RCT 34.3 302 P :05.00 (-0.02 ) S :09.70 (-0.01 ) CBT 40.4 350 P :06.00 ( 0.11 ) S :11.10 (-0.13 ) ***** 9 MARCH 1986; 23:49 - SUMMERVILLE, SOUTH CAROLINA ***** *NEIC Felt (III) at Summerville, South Carolina *NEIC OT= 23:49:15.4 LAT= 32.968N LON= 80.169W DEP= 5.8 KM MD= 2.2 NO= 9 STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) SVS 7.8 271 iPd 23:49:17.25 ( 0.1 ) eS 23:49:18.19 ( X) MGS 7.8 161 iPc :17.54 ( 0.3 ) BCS 10.0 82 iPd :17.34 (-0.1 ) DRC 25.6 307 iPc :20.22 ( 0.1 ) TRK 40.0 65 iPd :22.66 ( 0.0 ) SGS 40.0 308 eP? :23.19 ( 0.5 ) eS? :27.71 ( X) JSC 176.8 325 eP? :43.23 (-0.9 ) LHS 177.9 341 eP? :43.02 (-1.2 ) PRM 238.0 302 eP? :50.89 (-1.3 ) ----- *USGS OT= 23:49:15.4 LAT= 32.968N LON= 80.169W DEP= 5.8 KM MDL= 2.2 NO= 16, GAP= 79 DEG, RMS RES= 0.15 SEC, Q= B, SQD= B/B ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.6 KM, AZ= -21 DEG; ERHMIN= 0.5 KM; ERZ= 2.0 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) SVS 7.4 271 iPd 23:49:17.25 ( 0.02 ) eS 23:49:18.19 (-0.11 ) MGS 8.3 161 iPc :17.54 ( 0.19 ) eS :18.98 ( 0.47X) BCS 10.1 82 iPd :17.34 (-0.29 ) eS :18.60 (-0.72 ) eH :19.19 ( 0.20 ) ZIN 15.5 3 iPd :18.35 (-0.12 ) eS :20.18 (-0.26X) WAS 16.5 216 iPd :18.71 ( 0.09 ) eS :20.83 (-0.23 ) eH :21.58 (-0.06 ) DRC 25.7 307 iPc :20.22 ( 0.09 ) eS :23.51 (-0.20 ) nH :24.00 ( 0.09 ) HWD 27.6 203 eP :20.67 ( 0.23 ) eS :23.90 (-0.34 ) nH :24.73 (-0.10 ) PBS 35.6 346 eP :25.87 ( 4.07X) TRK 40.4 65 iPd :22.66 ( 0.06 ) eS :27.17 (-0.44 ) SGS 40.6 308 eP :23.19 ( 0.55X) eS :27.71 ( 0.04 ) VRN 72.6 276 eP :28.05 ( 0.21 ) eS :37.35 ( 0.50X) OSB 89.9 316 eP :27.65 (-2.85X) eS :36.17 (-5.67X) MTT 161.8 302 eP :41.67 (-0.09X) eS :50:01.30 (-0.25X) JSC 177.1 325 eP :43.23 (-0.68X) eS :05.15 (-0.17X) JSC 177.1 325 eP :44.76 ( 0.85X) eS :05.24 (-0.08X) LHS 177.7 341 eP :43.02 (-1.09X) PRM 238.5 301 eP :50.89 (-2.24X) ***** 13 MARCH 1986; 02:29 - MILLEDGEVILLE, GEORGIA ***** *NEIC Felt (IV) at Milledgeville and (III) at Haddock and Eatonton, Georgia *NEIC OT= 02:29:31.4 LAT= 33.229N LON= 83.226W DEP= 5.0 KM, FXD MD= 2.4 NO= 9, STANDARD DEVIATION= 0.6 SEC STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ETG 13.3 301 P 02:29:33.10 (-0.8 ) BEVG 105.6 25 P :49.70 (-0.2 ) S 02:30:03.40 ( X) LDVG 113.4 26 P :50.80 (-0.4 ) S :05.00 ( X) IVAG 124.5 21 P :53.00 ( 0.3 ) S :08.20 ( X) PRM 124.5 40 eP :52.50 (-0.3 ) JSC 216.8 57 eP :30:06.00 ( 0.6 ) TVGG 230.2 304 P :07.90 ( 0.6 ) S :35.00 ( X) LHS 263.5 58 eP :11.00 (-0.5 ) TKL 274.7 350 eP :13.50 ( 0.6 ) RSCP 341.4 321 eP :24.50 ( 3.1 X) GFM 344.7 22 eP :26.50 ( 4.4 X) ***** 25 MARCH 1986; 03:58 - SERVILLA, TENNESSEE ***** *GIT OT= 03:58:36.1 LAT= 35.229N LON= 84.468W DEP= 15.4 KM MDB= 1.0 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.1 KM, AZ= 26 DEG; ERHMIN= 0.0 KM; ELLIPSE AREA= 0.0 SQ KM) 3 Stations Used (NO= 4): DCT (Dmin= 19.9 km), RCT, and CBT See TEIC listing for arrival time data ----- *TEIC OT= 03:58:36.2 LAT= 35.231N LON= 84.471W DEP= 12.9 KM MDB= 0.4 NO= 8, GAP= 196 DEG, RMS RES= 0.08 SEC, Q= C, SQD= B/D ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.5 KM, AZ= 88 DEG; ERHMIN= 0.4 KM; ERZ= 0.7 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ETT 10.6 8 eP 03:58:39.20 ( 0.02 ) eS 03:58:41.40 ( 0.06 ) DCT 20.2 167 S :43.30 (-0.11 ) RCT 21.4 306 P :40.50 (-0.02 ) S :43.70 ( 0.04 ) CBT 34.5 8 S :46.90 (-0.23 ) GMG 44.8 204 eP :44.27 ( 0.02 ) eS :59.62 ( 9.50X) WSSR 81.4 86 eS :59:00.29 ( 0.14 ) ***** 25 MARCH 1986; 04:45 - SERVILLA, TENNESSEE ***** *GIT OT= 04:45:34.0 LAT= 35.245N LON= 84.481W DEP= 14.9 KM MDB= 1.0 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.5 KM, AZ= -24 DEG; ERHMIN= 0.4 KM; ELLIPSE AREA= 0.7 SQ KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) RCT 19.9 304 P 04:45:37.90 (-0.19 ) S 04:45:41.00 (-0.08 ) DCT 21.9 165 P :38.30 (-0.06 ) S :41.30 (-0.25 ) CBT 33.1 10 P :40.50 ( 0.53 ) S :44.40 ( 0.07 ) RHT 41.1 243 P :40.90 (-0.27 ) S :46.10 (-0.31 ) TVG 122.4 218 P :54.30 ( 0.30 ) S :46:09.70 ( 1.07 ) ----- *TEIC OT= 04:45:34.0 LAT= 35.244N LON= 84.469W DEP= 11.4 KM MDB= 1.1 NO= 14, GAP= 98 DEG, RMS RES= 0.08 SEC, Q= B, SQD= A/B ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.3 KM, AZ= -88 DEG; ERHMIN= 0.2 KM; ERZ= 0.5 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ETT 9.2 8 eP 04:45:36.80 ( 0.19 ) eS 04:45:39.50 ( 0.99X) RCT 20.7 303 P :37.90 (-0.18 ) S :41.00 (-0.06 ) DCT 21.6 168 P :38.30 ( 0.06 ) S :41.30 (-0.03 ) CBT 33.0 8 P :40.50 ( 0.50X) S :44.40 ( 0.02 ) RHT 41.9 244 P :40.90 (-0.52X) S :46.20 (-0.64X) WMTN 45.9 271 eP :42.13 ( 0.05 ) eS :47.29 (-0.68X) GMG 46.2 204 eP :42.20 ( 0.00 ) eS :49.10 ( 0.92X) GBTN 52.3 27 eP :43.10 (-0.03 ) eS :49.80 ( 0.01 ) BBG 72.7 124 eP :46.50 (-0.09 ) eS :54.80 (-0.98X) ORT 75.3 11 eS :56.69 ( 0.45X) LKGA 114.7 233 eP :52.38 (-0.54X) eS :46:07.91 ( 1.17X) TVG 122.7 219 P :54.30 ( 0.18 ) S :09.70 ( 0.90X) ABTN 164.8 296 eP :46:00.94 ( 0.42 ) eS :20.19 ( 0.31 ) ***** 26 MARCH 1986; 16:36 - BLACKSBURG, VIRGINIA ***** *NEIC Felt (IV) at Blacksburg, VA. Felt (III) at Eggleston and Newport, VA *VTSO MMI = IV in northern Blacksburg, VA (41 intensity reports were received for this event, see VTSO Special Study #86-2) *VTSO OT= 16:36:23.9 LAT= 37.245N LON= 80.494W DEP= 11.9 KM MDB= 2.9 NO= 15, GAP= 110 DEG, RMS RES= 0.29 SEC, Q= B, SQD= B/B ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 1.1 KM, AZ= -54 DEG; ERHMIN= 0.7 KM; ERZ= 2.4 KM; Q= B) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) BAV 6.7 113 iPc 16:36:26.20 (-0.09 ) eS 16:36:27.00 (-0.93X) BLA 7.6 120 iPc :26.31 (-0.06 ) eS :28.19 ( 0.13 ) VWV 26.1 20 iPc :28.50 (-0.33 ) eS? :32.51 ( 0.28 ) NAV 27.7 286 iPc :28.65 (-0.39 ) iS :32.11 (-0.48 ) PUV 37.7 229 ePd :31.06 ( 0.42 ) S :35.55 ( 0.26 ) WMV 44.9 250 ePc :31.44 (-0.40 ) iS :37.41 ( 0.09 ) HWV 49.1 321 ePd :32.68 ( 0.22 ) iS :38.86 ( 0.45 ) PWV 50.2 282 ePc :32.65 (-0.01 ) iS :38.86 ( 0.12 ) PLVA 86.7 222 eP :38.90 (-0.12 ) eS :51.00 ( 1.14X) BV2 111.2 27 eP :42.39 ( 0.20X) eS :55.43 ( 0.45X) BV1 126.9 35 eP :44.61 (-0.01X) eS :57.56 (-1.54X) BV3 127.5 30 ePc :44.93 ( 0.22X) BV4 136.6 25 eP :46.69 ( 0.58X) S :37:02.00 ( 0.36X) PKNC 145.6 203 ePc :48.05 (-0.06 ) SLTN 168.9 238 eP :51.87 ( 0.27 ) eS :12.49 ( 0.86X) GFM 172.1 223 eP :51.50 (-0.12X) FRV 189.5 91 ePd :54.82 ( 0.67X) S :16.89 ( 1.56X) CVL 197.2 65 ePd :55.67 ( 0.34X) S :18.92 ( 1.59X) BENN 213.8 210 ePc :58.59 ( 0.66X) eS :25.05 ( 3.31X) GHV 219.6 73 eP? :59.13 ( 0.38X) S :22.28 (-0.87X) NA12 244.9 70 eP :37:02.51 ( 0.00X) iS :30.30 ( 0.60X) NA5 257.8 70 eP :04.33 ( 0.25X) eS :32.84 ( 0.46X) SMTN 258.2 249 eP :04.80 ( 0.58X) eS :35.60 ( 2.99X) PBV 264.9 95 eP :04.05 (-0.90X) iS :30.95 (-2.92X) TRYN 273.1 216 eP :06.50 ( 0.44X) eS :38.60 ( 2.85X) LMTN 301.4 241 eP :10.11 ( 0.63X) eS :46.49 ( 4.89X) LHS 308.2 185 eP :11.00 ( 0.75X) CRTN 320.7 250 eP :11.18 (-0.64X) eS :47.65 ( 2.05X) JSC 336.3 192 eP :14.30 ( 0.62X) TKL 342.7 240 eP :13.20 (-1.30X) eS :52.40 ( 2.22X) PRM 389.5 206 eP :21.00 ( 0.81X) BBG 398.1 230 eP :21.50 ( 0.10X) eS :38:04.50 ( 2.53X) ETT 414.6 240 eP :24.20 ( 0.88X) eS :07.00 ( 1.73X) ABTN 524.7 255 eP :33.18 (-3.56X) eS :32.00 ( 3.77X) ----- *NEIC OT= 16:36:23.9 LAT= 37.245N LON= 80.494W DEP= 11.8 KM MD= 2.9 NO= 12 STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) BLA 7.8 120 P 16:36:26.10 (-0.4 ) VWV 26.7 20 P :28.50 (-0.6 ) NAV 27.8 287 P :28.60 (-0.7 ) PUV 37.8 230 P :31.00 ( 0.0 ) WMV 44.5 250 P :31.40 (-0.9 ) HWV 48.9 321 P :32.70 (-0.3 ) PWV 50.0 282 P :32.70 (-0.5 ) GFM 172.4 223 eP :51.50 ( 0.0 ) CVL 196.8 65 P :55.60 ( 1.0 ) LHS 308.0 185 eP :37:11.00 ( 2.1 ) JSC 335.8 192 eP :14.30 ( 1.9 ) PRM 389.2 206 eP :21.00 ( 1.7 ) ----- TEIC location for informational purposes only *TEIC OT= 16:36:24.2 LAT= 37.252N LON= 80.516W DEP= 7.0 KM MDB= 3.0 NO= 21, GAP= 150 DEG, RMS RES= 0.11 SEC, Q= B, SQD= A/C ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.2 KM, AZ= -36 DEG; ERHMIN= 0.2 KM; ERZ= 0.8 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) BAV 8.7 112 iPc 16:36:26.20 ( 0.00 ) BLA 9.6 118 iPc :26.31 (-0.02 ) eS 16:36:28.19 ( 0.28 ) NAV 25.6 286 iPc :28.65 (-0.19 ) iS :32.11 (-0.14 ) VWV 26.2 25 iPc :28.50 (-0.47X) eS :32.51 ( 0.03 ) PUV 36.7 227 ePd :31.06 ( 0.37 ) S :35.55 ( 0.10 ) WMV 43.4 249 ePc :31.44 (-0.40 ) iS :37.41 (-0.03 ) HWV 47.3 323 ePd :32.68 ( 0.26 ) iS :38.86 ( 0.41 ) PWV 48.2 281 ePc :32.65 ( 0.06 ) S :38.86 ( 0.12 ) PLVA 86.7 222 eP :38.90 (-0.12 ) eS :51.00 ( 1.14X) PKNC 145.6 203 ePc :48.05 (-0.06 ) SLTN 168.9 238 eP :51.87 ( 0.27 ) eS :37:12.49 ( 0.86X) BENN 213.5 209 ePc :58.59 ( 0.07 ) eS :25.05 ( 1.44X) SMTN 256.7 249 eP :37:04.80 (-0.10 ) eS :35.60 ( 0.96X) TRYN 269.6 216 eP :06.50 ( 0.00 ) eS :38.60 ( 1.20X) LMTN 299.8 241 eP :10.11 (-0.04 ) eS :46.49 ( 2.77X) CRTN 319.1 250 eP :11.18 (-1.23X) eS :47.65 ( 0.02X) TKL 341.4 240 eP :13.20 (-1.99X) eS :52.40 (-0.04X) BBG 397.1 229 eP :21.50 (-0.66X) eS :38:04.50 ( 0.01X) ETT 413.3 240 eP :24.20 ( 0.18X) eS :07.00 (-0.71X) WMTN 458.1 242 eP :29.80 ( 0.34X) ABTN 523.0 255 eP :33.18 (-4.16X) eS :32.00 ( 1.25X) ***** 11 APRIL 1986; 06:05 - CEDAR GROVE, GEORGIA ***** *TEIC OT= 06:05:25.9 LAT= 34.676N LON= 85.430W DEP= 13.0 KM MDB= 0.0 NO= 9, GAP= 180 DEG, RMS RES= 0.11 SEC, Q= C, SQD= B/D ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 1.2 KM, AZ= -65 DEG; ERHMIN= 0.6 KM; ERZ= 0.8 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) LKGA 7.0 213 ePd 06:05:28.57 ( 0.07 ) eS 06:05:30.27 (-0.16 ) RCG 34.0 13 eP :32.30 ( 0.20 ) eS :36.62 (-0.04 ) WMTN 75.9 33 eP :38.72 ( 0.01 ) eS :47.96 (-0.13 ) PDTN 76.5 330 eP :38.69 (-0.10 ) eS :48.32 ( 0.08 ) MSAL 115.4 280 eS :57.83 (-0.69X) ABTN 147.7 335 eS :06:07.65 ( 0.63 ) ***** 13 APRIL 1986; 23:16 - MADISONVILLE, TENNESSEE ***** *GIT OT= 23:16:21.2 LAT= 35.534N LON= 84.215W DEP= 1.0 KM, FXD MDB= 0.0 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 1.0 KM, AZ= -43 DEG; ERHMIN= 0.8 KM; ELLIPSE AREA= 2.5 SQ KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) GBTN 14.6 1 P 23:16:23.20 (-0.68 ) S 23:16:25.50 (-0.25 ) CBT 18.7 272 P :25.00 ( 0.39 ) S :27.50 ( 0.52 ) ETT 31.8 223 P :26.80 (-0.19 ) S :29.60 (-1.42 ) ***** 19 APRIL 1986; 07:40 - WHITWELL, TENNESSEE ***** *TEIC OT= 07:40:53.0 LAT= 35.187N LON= 85.510W DEP= 27.3 KM MDB= 3.0 NO= 28, GAP= 74 DEG, RMS RES= 0.11 SEC, Q= B, SQD= A/B ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.3 KM, AZ= 50 DEG; ERHMIN= 0.2 KM; ERZ= 0.8 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) RCG 27.7 148 iPd 07:40:59.20 (-0.15 ) PDTN 32.4 287 iPd :59.99 ( 0.10 ) iS 07:41:04.90 (-0.04 ) CPO 45.6 353 iPc :41:01.74 ( 0.10 ) iS :07.50 (-0.46 ) WMTN 49.3 82 iPd :02.19 ( 0.06 ) LKGA 62.6 177 iPc :04.20 ( 0.15 ) iS :12.20 ( 0.05 ) GMG 84.6 115 iPc :07.48 ( 0.11 ) BHT 89.4 35 iPd :07.95 (-0.10 ) ABTN 94.7 325 iPc :08.72 (-0.01 ) ETT 97.2 81 iPd :09.20 ( 0.01 ) eS :21.00 (-0.03 ) ANTN 112.2 13 iPc :11.33 (-0.12 ) MSAL 112.7 251 iPd :11.23 (-0.26 ) iS :25.69 ( 0.68X) GBTN 129.4 65 iP- :14.00 (-0.02 ) eS :29.20 (-0.19 ) ORT 135.5 53 ePd :14.90 (-0.06 ) eS :31.45 ( 0.44X) SHTN 150.4 282 eP+ :17.03 (-0.19 ) iS :35.27 ( 0.35 ) BBG 158.8 102 eP- :18.70 ( 0.06 ) eS :36.50 (-0.87X) TKL 166.1 71 iPc :19.50 (-0.11 ) eS :39.00 (-0.05 ) HPK 169.1 61 ePd :20.30 ( 0.28 ) eS :40.70 ( 0.93X) ONTN 173.0 34 ePd :20.06 (-0.64X) WSSR 176.1 86 iPd :21.25 (-0.03 ) SSKY 180.3 352 ePc :21.55 (-0.23 ) eS :42.96 ( 0.15 ) CRTN 188.3 53 ePd :22.79 (-0.16 ) eS :47.90 ( 3.06X) LMTN 205.8 67 eP :25.06 (-0.39X) eS :49.75 ( 0.60X) BGKY 221.5 336 eP :26.79 (-0.51X) eS :54.31 ( 1.95X) CCVA 228.9 46 eP :28.05 (-0.19X) RBNC 230.4 85 iPd :28.45 (-0.19X) eS :54.71 ( 0.04X) PWLA 234.1 265 eP+ :29.15 ( 0.32X) eS :55.50 ( 0.49X) SMTN 248.7 57 eP+ :30.00 (-0.71X) eS :59.00 ( 0.73X) NATN 296.9 284 eP :33.30 (-3.21X) eS :42:04.20 (-4.09X) TRYN 297.2 87 eP :36.20 (-0.47X) eS :08.50 (-0.06X) BRBC 299.0 77 eP :37.20 ( 0.16X) MILT 301.5 285 eP :38.00 ( 0.94X) eS :08.10 (-1.15X) SLTN 336.5 65 eP :42.20 ( 0.86X) BENN 352.2 82 eP :43.05 (-0.33X) PKNC 405.6 75 eP :49.45 (-0.45X) eS :30.80 (-0.65X) ----- *GIT OT= 07:40:53.3 LAT= 35.195N LON= 85.513W DEP= 21.0 KM MDB= 3.0 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.3 KM, AZ= -81 DEG; ERHMIN= 0.2 KM; ELLIPSE AREA= 0.2 SQ KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) RCG 28.7 148 P 07:40:59.25 ( 0.21 ) PDTN 31.9 286 P :59.99 ( 0.52 ) S 07:41:04.90 ( 0.90 ) CPO 45.7 353 P :41:01.74 ( 0.33 ) S :07.50 ( 0.12 ) WMTN 49.5 83 P :02.19 ( 0.21 ) RHT 58.9 103 P :03.70 ( 0.31 ) S :11.00 ( 0.20 ) LKGA 63.5 177 P :04.20 ( 0.11 ) S :12.20 ( 0.18 ) RCT 79.2 78 S :17.00 ( 0.83 ) GMG 85.4 116 P :07.51 ( 0.05 ) BHT 88.7 35 P :08.07 ( 0.11 ) ABTN 91.9 324 P :08.72 ( 0.26 ) TVG 92.8 168 P :08.80 ( 0.20 ) ETT 97.3 81 P :09.20 (-0.10 ) S :20.40 (-0.64 ) DCT 101.0 99 P :10.00 ( 0.12 ) S :22.80 ( 0.76 ) CDG 101.1 130 P :09.90 ( 0.00 ) S :22.20 ( 0.12 ) CBT 106.1 69 P :10.80 ( 0.11 ) S :24.00 ( 0.56 ) OCA 106.4 233 P :10.00 (-0.72 ) ANTN 109.7 9 P :11.33 ( 0.09 ) MSAL 113.0 250 P :11.23 (-0.52 ) S :25.69 ( 0.40 ) GBTN 128.9 66 P :14.10 (-0.14 ) ORT 135.2 53 P :14.90 (-0.32 ) SHTN 149.7 281 P :17.03 (-0.45 ) S :35.27 ( 0.06 ) BBG 159.6 103 P :18.70 (-0.32 ) S :36.80 (-1.08 ) TKL 165.6 72 P :19.45 (-0.49 ) HPK 168.3 61 P :20.30 (-0.06 ) ONTN 171.9 34 P :20.30 (-0.62 ) HVA 174.0 222 P :20.80 (-0.44 ) S :41.00 (-0.74 ) WSSR 176.3 87 P :21.31 (-0.29 ) SSKY 179.3 352 P :21.55 (-0.51 ) S :42.96 (-0.20 ) CRTN 187.2 53 P :22.79 (-0.49 ) TSA 259.3 214 P :32.70 (-1.56 ) BKA 286.2 233 P :38.00 (-0.27 ) ETG 291.8 136 P :39.20 ( 0.11 ) ***** 23 APRIL 1986; 07:18 - KENSINGTON, GEORGIA ***** *TEIC OT= 07:18:57.2 LAT= 34.778N LON= 85.282W DEP= 14.8 KM MDB= 1.9 NO= 33, GAP= 140 DEG, RMS RES= 0.13 SEC, Q= B, SQD= A/C ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.2 KM, AZ= -43 DEG; ERHMIN= 0.2 KM; ERZ= 0.9 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) RCG 22.6 345 eP 07:19:02.05 ( 0.17 ) eS 07:19:05.20 (-0.07 ) LKGA 24.5 225 iPd :02.20 ( 0.03 ) iS :05.75 (-0.02 ) RHT 49.4 48 P :05.80 (-0.10 ) S :12.20 (-0.04 ) GMG 56.7 80 eP :07.20 ( 0.07 ) eS :14.22 (-0.14 ) WMTN 59.2 28 ePd :07.55 ( 0.13 ) iS :14.75 (-0.11 ) PDTN 75.5 317 ePc :09.79 (-0.11 ) eS :19.31 ( 0.16 ) DCT 84.6 69 P :11.50 ( 0.18 ) S :21.80 ( 0.20 ) RCT 84.6 42 P :11.50 ( 0.21 ) S :22.00 ( 0.44 ) CPO 94.3 344 ePc :13.17 ( 0.35 ) eS :24.20 ( 0.00 ) OCA 107.2 261 S :27.70 ( 0.16 ) CBT 115.3 43 P :15.80 (-0.20X) S :29.70 ( 0.00 ) BHT 122.5 14 eP :17.10 (-0.06 ) eS :31.70 (-0.01 ) MSAL 127.5 274 eP- :17.64 (-0.22 ) eS :32.76 (-0.17 ) BBG 135.0 85 eP :19.00 (-0.15 ) eS :35.20 ( 0.05 ) GBTN 138.6 44 eP :20.00 ( 0.43X) eS :36.50 ( 0.62X) ABTN 144.0 329 ePc :20.38 ( 0.03 ) eS :37.71 ( 0.47 ) ORT 153.8 35 eP :23.00 ( 1.11X) eS :42.50 ( 2.60X) ANTN 154.7 2 eP :22.46 ( 0.40 ) TKL 168.5 54 eP :24.30 ( 0.16 ) eS :44.20 ( 0.41 ) SHTN 184.6 295 eP :26.24 (-0.37 ) eS :47.77 (-0.29 ) CRTN 204.9 39 eP :30.24 ( 0.56X) RBNC 219.1 72 eP :32.30 ( 0.22X) eS :57.80 ( 0.28X) PWLA 255.3 276 eP :37.10 ( 0.26X) eS :20:05.60 (-0.15X) SMTN 260.6 46 eP :38.50 ( 0.93X) eS :06.70 (-0.32X) ----- *GIT OT= 07:18:57.2 LAT= 34.793N LON= 85.305W DEP= 19.1 KM MDB= 1.8 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.8 KM, AZ= -58 DEG; ERHMIN= 0.2 KM; ELLIPSE AREA= 0.5 SQ KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) RHT 49.8 51 P 07:19:05.80 (-0.08 ) S 07:19:12.20 (-0.03 ) RCT 84.7 44 P :11.50 ( 0.24 ) S :22.00 ( 0.45 ) DCT 85.8 70 P :11.50 ( 0.07 ) S :21.80 (-0.05 ) OCA 105.6 259 S :27.20 (-0.02 ) CBT 115.3 44 P :15.80 (-0.25 ) S :29.70 (-0.15 ) ***** 27 APRIL 1986; 22:30 - BOYDS CREEK, TENNESSEE ***** *TEIC OT= 22:30:26.4 LAT= 35.919N LON= 83.729W DEP= 19.7 KM MDB= 2.1 NO= 22, GAP= 72 DEG, RMS RES= 0.12 SEC, Q= A, SQD= A/A ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.3 KM, AZ= 84 DEG; ERHMIN= 0.2 KM; ERZ= 0.6 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) HPK 13.5 273 iPd 22:30:30.40 ( 0.00 ) iS 22:30:33.10 (-0.19 ) LMTN 29.2 97 ePc :32.37 ( 0.04 ) iS :36.54 (-0.10 ) TKL 29.3 188 iP :32.40 ( 0.09 ) iS :36.75 ( 0.16 ) CRTN 32.7 342 iPc :32.79 ( 0.05 ) iS :37.41 ( 0.07 ) GBTN 51.8 237 iP :35.40 (-0.17 ) eS :42.00 (-0.24 ) ORT 52.0 269 ePd :35.79 ( 0.19 ) eS :42.19 (-0.10 ) SMTN 71.2 44 eP :38.50 (-0.05 ) eS :47.20 (-0.18 ) WSSR 72.5 169 iPc :38.75 (-0.08 ) eS :47.69 (-0.18 ) CBT 75.4 236 eP :40.00 ( 0.86X) eS :49.00 ( 0.59 ) DCT 114.6 213 eP :45.40 ( 0.25 ) eS :59.00 ( 0.19 ) WMTN 135.1 237 eP :48.68 ( 0.41 ) SLTN 156.0 68 eP :51.73 ( 0.30 ) CPO 170.4 258 eP :54.13 ( 0.44 ) eS :31:14.76 ( 1.18X) GFM 174.6 82 eP :55.10 ( 0.61X) eS :15.60 ( 0.64X) ----- *GIT OT= 22:30:26.6 LAT= 35.923N LON= 83.725W DEP= 19.8 KM MDB= 2.1 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.3 KM, AZ= -54 DEG; ERHMIN= 0.2 KM; ELLIPSE AREA= 0.2 SQ KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) HPK 13.9 271 P 22:30:30.40 (-0.11 ) S 22:30:33.10 (-0.30 ) LMTN 28.8 98 P :32.37 ( 0.11 ) S :36.54 ( 0.12 ) TKL 29.7 189 P :32.25 (-0.13 ) S :36.62 (-0.01 ) CRTN 32.5 341 P :32.79 ( 0.04 ) S :37.41 ( 0.13 ) GBTN 52.4 237 P :35.30 (-0.36 ) S :41.80 (-0.52 ) ORT 53.0 270 P :35.79 ( 0.04 ) S :42.19 (-0.27 ) SMTN 70.5 44 P :38.50 ( 0.08 ) S :47.20 ( 0.11 ) WSSR 72.8 169 P :38.75 (-0.03 ) S :47.69 (-0.03 ) CBT 76.1 236 P :39.60 ( 0.30 ) S :49.00 ( 0.39 ) RCT 106.6 233 S :57.80 ( 0.95 ) DCT 115.3 213 P :45.30 (-0.12 ) S :59.00 (-0.23 ) WMTN 136.1 237 P :48.68 ( 0.01 ) RHT 141.2 228 S :31:07.00 ( 0.76 ) SLTN 155.0 68 P :51.73 ( 0.11 ) CPO 171.2 258 P :54.13 (-0.02 ) S :14.76 ( 0.42 ) GFM 173.9 83 P :55.10 ( 0.54 ) S :15.60 ( 0.53 ) ***** 1 MAY 1986; 01:21 - BENTON, TENNESSEE ***** *TEIC OT= 01:21:20.6 LAT= 35.150N LON= 84.677W DEP= 16.4 KM MDB= 1.3 NO= 20, GAP= 65 DEG, RMS RES= 0.13 SEC, Q= B, SQD= B/B ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.3 KM, AZ= -45 DEG; ERHMIN= 0.2 KM; ERZ= 1.2 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) RHT 20.3 247 P 01:21:25.10 ( 0.09 ) S 01:21:28.20 (-0.04 ) RCT 21.7 4 P :25.20 ( 0.02 ) S :28.00 (-0.54 ) DCT 25.8 114 P :26.00 ( 0.21 ) ETT 28.1 46 eP- :26.10 (-0.02 ) eS :30.10 (-0.06 ) WMTN 29.1 292 ePc :26.20 (-0.03 ) eS :30.33 (-0.01 ) GMG 31.9 179 eP :27.35 ( 0.60 ) eS :31.20 (-0.04 ) CBT 49.1 28 P :29.80 ( 0.57 ) S :35.70 ( 0.16 ) GBTN 71.2 36 eP :32.00 (-0.62X) eS :40.60 (-0.80X) BBG 84.8 111 eP :34.70 (-0.13 ) eS :44.70 (-0.52 ) LKGA 93.2 231 eP :35.80 (-0.23 ) eS :47.20 (-0.10 ) WSSR 101.1 82 eS :49.15 (-0.39 ) CRTN 138.9 33 eP :44.20 ( 1.26X) eS :22:01.70 ( 2.44X) ABTN 153.4 303 eP :45.28 ( 0.13 ) eS :03.37 ( 0.29 ) ----- *GIT OT= 01:21:21.0 LAT= 35.150N LON= 84.692W DEP= 16.1 KM MDB= 1.2 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.5 KM, AZ= -47 DEG; ERHMIN= 0.4 KM; ELLIPSE AREA= 0.7 SQ KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) RHT 19.1 245 P 01:21:25.10 ( 0.07 ) S 01:21:28.20 ( 0.18 ) RCT 21.9 7 P :25.20 (-0.19 ) S :28.00 (-0.64 ) DCT 27.0 113 P :26.00 (-0.09 ) WMTN 27.8 293 P :26.20 ( 0.00 ) S :30.33 ( 0.29 ) ETT 29.1 48 P :26.10 (-0.28 ) GMG 31.9 176 P :27.50 ( 0.72 ) CBT 49.8 30 P :29.80 ( 0.32 ) S :35.70 (-0.02 ) GBTN 72.0 37 P :32.20 (-0.75 ) S :40.60 (-1.14 ) BBG 86.2 111 P :34.60 (-0.58 ) S :44.70 (-0.92 ) LKGA 92.3 231 P :35.80 (-0.36 ) S :47.20 (-0.10 ) CRTN 139.4 33 P :44.20 ( 0.60 ) S :22:01.70 ( 1.50 ) ABTN 150.6 302 P :45.28 (-0.08 ) S :03.37 ( 0.11 ) ***** 2 MAY 1986; 13:53 - LANCASTER COUNTY, PENNSYLVANIA ***** NOTE: This event is considered to be outside the SEUSSN monitoring area *NEIC Felt (IV) in Conastoga, Pennsylvania *NEIC OT= 13:53:52.6 LAT= 39.925N LON= 76.293W DEP= 5.0 KM, FXD MD= 2.5 NO= 5, STANDARD DEVIATION= 0.4 SEC STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) MVL 11.1 329 P 13:53:54.50 (-0.1 ) NED 55.6 116 P :54:03.00 ( 0.3 ) BWD 66.7 103 P :03.50 (-0.4 ) PRIN 144.6 69 eP :16.90 ( 0.0 ) eS 13:54:33.60 ( X) PQN 155.7 40 eP :19.30 ( 0.2 ) eS :38.40 ( X) RAMA 222.4 53 eP :28.30 ( 1.0 X) eS :54.80 ( X) NA2 233.5 213 P :24.40 (-4.8 X) CRNY 278.0 56 eP :36.70 ( 2.0 X) eS :55:10.30 ( X) BLA 467.0 231 P :55.00 (-4.1 X) Additional Data: Operator: DGS; Remark: Near Safe Harbor, PA (Lancaster County) STA PHASE ARRIVAL TIME PHASE ARRIVAL TIME NED iP 13:54:03.0 BWD iP :03.5 iS 13:54:11.5 ***** 4 MAY 1986; 19:25 - VONORE, TENNESSEE ***** *TEIC OT= 19:25:40.2 LAT= 35.510N LON= 84.201W DEP= 16.9 KM MDB= 1.2 NO= 19, GAP= 102 DEG, RMS RES= 0.10 SEC, Q= B, SQD= A/B ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.3 KM, AZ= -43 DEG; ERHMIN= 0.2 KM; ERZ= 0.8 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) GBTN 17.3 357 iP+ 19:25:44.40 ( 0.11 ) eS 19:25:47.20 (-0.08 ) CBT 20.2 279 P :45.60 ( 0.95X) S :49.00 ( 1.10X) ETT 30.8 229 eP+ :46.10 (-0.03 ) eS :50.50 ( 0.03 ) TKL 42.0 67 eP :47.85 ( 0.08 ) eS :53.23 (-0.08 ) ORT 45.3 348 eP :48.31 ( 0.04 ) eS :54.12 (-0.05 ) RCT 45.6 246 P :48.30 ( 0.00 ) S :54.00 (-0.23 ) DCT 54.3 202 P :50.00 ( 0.34 ) S :56.50 (-0.07 ) WSSR 62.2 114 iPc :51.10 ( 0.13 ) eS :58.60 (-0.24 ) WMTN 76.0 248 eP :53.09 ( 0.15X) eS :26:02.08 (-0.17 ) CRTN 83.2 23 eP :53.76 (-0.23 ) eS :03.61 (-0.46 ) GMG 83.6 211 eP :54.45 ( 0.25 ) eS :04.40 (-0.03 ) ----- *GIT OT= 19:25:40.6 LAT= 35.500N LON= 84.178W DEP= 16.0 KM MDB= 1.2 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.5 KM, AZ= -55 DEG; ERHMIN= 0.3 KM; ELLIPSE AREA= 0.4 SQ KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) GBTN 18.7 351 P 19:25:44.40 (-0.17 ) S 19:25:47.20 (-0.32 ) CBT 22.4 281 P :45.60 ( 0.55 ) S :49.00 ( 0.65 ) ETT 31.7 233 P :46.10 (-0.25 ) S :50.60 (-0.01 ) TKL 40.6 64 P :47.60 (-0.07 ) S :52.90 ( 0.01 ) RCT 47.1 249 P :48.30 (-0.37 ) S :54.00 (-0.62 ) DCT 54.1 204 P :50.00 ( 0.25 ) S :56.50 ( 0.01 ) ***** 7 MAY 1986; 02:27 - TUSCALOOSA COUNTY, ALABAMA ***** *GIT This event is a mine collapse. The mine location is: LAT= 33.335N LON= 87.347W DEP= 0.6 KM *NEIC OT= 02:27:00.5 LAT= 33.233N LON= 87.361W DEP= 1.0 KM, FXD mb= 4.0 NO= 26, STANDARD DEVIATION= 0.8 SEC STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) OCA 177.9 29 P 02:27:30.50 ( 0.8 ) PWLA 200.2 342 ePd :34.10 ( 0.7 ) SHA 289.1 195 P :54.50 ( 9.9 X) RSCP 311.4 31 ePnd :48.30 ( 1.3 ) TLT 367.0 50 P :53.80 (-0.3 ) GRT 389.2 331 eP :57.40 ( 0.7 ) LST 422.6 330 eP :28:02.00 ( 0.3 ) TKL 422.6 50 eP :02.40 ( 0.6 ) OLY 455.9 305 eP :06.10 ( 0.7 ) POW 478.2 314 eP :09.00 ( 0.6 ) ELC 478.2 340 eP :07.80 (-1.0 ) JSC 578.2 77 eP :21.20 ( 0.1 ) FVM 600.5 333 ePn :22.80 (-0.7 ) GFM 600.5 56 eP :24.40 ( 0.0 ) NAV 745.0 51 eP :41.50 (-1.6 X) BLA 767.3 53 eP :44.90 (-0.8 ) RLO 778.4 297 ePn :45.40 (-0.7 ) i? 02:29:08.70 ( X) VVO 800.6 289 eP :50.00 (-0.1 ) TUL 822.9 293 iPnc :53.20 ( 0.2 ) e? :19.00 ( X) eLg :31:02.20 ( X) OCO 967.4 288 eP :29:09.60 (-0.4 ) QZO 1112.0 283 eP :27.60 (-1.5 X) ACO 1145.3 293 eP :30.30 (-1.8 X) JCT 1212.1 259 eP :38.50 (-2.6 X) e? :30:42.00 ( X) LTX 1612.4 259 eP :30:30.30 ( 1.7 ) GOL 1768.1 299 eP :46.20 (-0.5 ) ALQ 1768.1 281 eP :53.00 ( 5.5 X) RSSD 1879.3 315 eP :59.30 (-1.0 ) RSON 2023.8 347 eP :31:14.00 (-2.2 X) BDW 2212.9 305 eP :36.00 (-0.3 ) DAU 2268.5 297 eP :45.00 ( 3.2 X) IMW 2357.4 307 eP :53.00 ( 2.7 X) DUG 2390.8 296 P :57.00 ( 3.9 X) LRM 2557.6 311 eP :32:10.40 ( 2.7 X) EUR 2646.5 293 eP :18.00 ( 2.1 X) COL 5337.6 330 eP :35:41.50 (-0.7 ) KHC 8017.4 43 eP :38:27.00 (-1.6 ) KBA 8117.5 45 ePc :34.00 (-0.1 ) VOY 8217.6 45 iP? :39.40 ( 0.4 ) WIN 12643.3 102 ePKP :45:48.20 ( 5.1 X) Additional Data: Operator - TEIC STA PHASE ARRIVAL TIME PHASE ARRIVAL TIME RCG iPc 02:27:43.56 iS 02:28:15.48 EBZ iPd :45.44 iS :17.18 PGM iPd :46.90 GMG ePd :48.60 FTN ePd :52.54 eS :29.92 ETT iP :54.20 iS :38.20 BTN eP :59.10 iS :56.90 OKY eP :28:03.75 MKY eP :08.00 OGG eP :12.20 eS :22.60 MTN iP :13.80 eS :02.80 RYN eP :16.60 eS :26.70 6KY eP :19.10 KKY eP :32.25 LVA eP :33.80 eS :47.20 WLA eP :34.10 iS :58.90 ILT eP :49.20 eS :25.50 GAR ePd :53.70 BHT eP :55.70 UTM eP :55.90 BBG eP :57.30 eS :42.90 WLA eP :57.60 eS :37.00 ***** 8 MAY 1986; 08:04 - CANE HOLLOW, TENNESSEE ***** *TEIC OT= 08:04:09.5 LAT= 35.383N LON= 85.765W DEP= 13.3 KM MDB= 0.7 NO= 13, GAP= 119 DEG, RMS RES= 0.11 SEC, Q= B, SQD= A/B ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.5 KM, AZ= -52 DEG; ERHMIN= 0.2 KM; ERZ= 0.4 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) PDTN 14.4 212 iPd 08:04:13.00 ( 0.12 ) iS 08:04:15.24 (-0.12 ) CPO 29.4 37 iP- :15.16 ( 0.13 ) iS :19.01 (-0.07 ) RCG 59.1 140 eP :19.60 (-0.15 ) eS :26.90 (-0.34 ) ABTN 63.9 331 ePc :20.37 (-0.05 ) eS :29.20 ( 0.79X) WMTN 73.5 102 eS :31.04 (-0.01 ) LKGA 88.4 162 eP :24.45 ( 0.18 ) ANTN 99.9 29 eS :38.33 ( 0.24 ) MSAL 102.0 235 eS :38.56 (-0.01 ) ETT 119.2 93 eS :43.60 ( 0.40X) SHTN 124.3 274 eS :44.38 (-0.10 ) GBTN 144.4 77 eS :50.10 ( 0.28 ) BBG 186.8 107 eS :05:02.00 ( 0.72X) ***** 8 MAY 1986; 15:45 - SUMMERVILLE, SOUTH CAROLINA ***** *USGS OT= 15:45:46.4 LAT= 33.007N LON= 80.178W DEP= 5.3 KM MDL= 1.4 NO= 12, GAP= 96 DEG, RMS RES= 0.07 SEC, Q= B, SQD= A/B ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.4 KM, AZ= -77 DEG; ERHMIN= 0.3 KM; ERZ= 1.6 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) SVS 7.8 237 iPc 15:45:48.26 ( 0.00 ) eS 15:45:49.42 ( 0.08 ) BCS 11.3 105 iPd :48.84 ( 0.05 ) eS :50.33 (-0.26 ) eS :51.04 ( 0.04 ) ZIN 11.3 9 iPc :48.68 (-0.12 ) eS :50.24 (-0.03 ) RGR 11.3 187 ePd :48.82 ( 0.02 ) eS :50.24 (-0.36 ) eS :51.13 (-0.07 ) WAS 19.7 206 iPd :50.26 ( 0.11 ) eS :52.73 (-0.24 ) eS :53.43 (-0.14 ) HBF 20.4 246 eP :48.59 (-1.18X) eS :50.48 (-1.83X) DRC 22.6 300 iPd :50.70 ( 0.07 ) eS :53.47 (-0.33X) eS :54.01 (-0.01 ) TRK 39.5 71 iPd :52.25 (-1.22X) eS :56.51 (-1.86X) ***** 13 MAY 1986; 14:30 - VONORE, TENNESSEE ***** *TEIC OT= 14:30:36.0 LAT= 35.539N LON= 84.176W DEP= 14.3 KM MDB= 1.6 NO= 27, GAP= 98 DEG, RMS RES= 0.14 SEC, Q= B, SQD= A/B ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.4 KM, AZ= -37 DEG; ERHMIN= 0.2 KM; ERZ= 0.4 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) GBTN 14.4 347 eP 14:30:39.40 (-0.08 ) eS 14:30:42.10 ( 0.06 ) ETT 34.7 227 eP :42.40 ( 0.00 ) eS :47.00 (-0.10 ) TKL 38.7 70 eP :43.00 (-0.01 ) eS :48.20 ( 0.05 ) ORT 42.7 344 P :43.75 ( 0.11 ) S :48.80 (-0.44 ) RCT 49.1 244 P :45.00 ( 0.38 ) S :51.00 ( 0.07 ) HPK 50.6 32 eP :45.35 ( 0.53 ) eS :50.80 (-0.47 ) DCT 58.2 202 P :46.50 ( 0.45 ) S :53.60 ( 0.19 ) WSSR 61.6 118 eP :47.12 ( 0.44 ) eS :54.37 (-0.12 ) CRTN 79.3 22 eP :49.61 ( 0.40 ) eS :58.70 (-0.17 ) WMTN 79.3 246 eP :49.45 ( 0.18 ) eS :59.00 ( 0.03 ) LMTN 79.5 61 eP :49.20 (-0.12 ) eS :58.82 (-0.25 ) RHT 82.1 232 eP :50.00 ( 0.31 ) eS :59.50 (-0.20 ) GMG 87.6 211 eP :51.20 ( 0.58 ) eS :31:01.11 (-0.20 ) ONTN 107.3 347 iS :30:58.82 (-7.61X) SMTN 129.5 44 eP :57.80 ( 0.80X) eS :31:12.60 ( 0.25 ) ABTN 179.1 283 eS :26.23 ( 0.91X) ----- *GIT OT= 14:30:36.3 LAT= 35.550N LON= 84.188W DEP= 15.5 KM MDB= 1.8 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.3 KM, AZ= -51 DEG; ERHMIN= 0.2 KM; ELLIPSE AREA= 0.1 SQ KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) GBTN 13.1 351 P 14:30:39.40 (-0.18 ) S 14:30:42.10 ( 0.09 ) ETT 34.7 224 P :42.40 (-0.07 ) S :47.00 (-0.03 ) TKL 39.3 72 P :43.10 (-0.06 ) S :48.20 (-0.02 ) ORT 43.0 345 P :43.75 ( 0.03 ) S :48.80 (-0.38 ) RCT 48.7 242 P :45.00 ( 0.41 ) S :51.00 ( 0.29 ) DCT 58.9 201 P :46.50 ( 0.32 ) S :53.60 ( 0.14 ) WSSR 63.1 119 P :47.12 ( 0.27 ) S :54.37 (-0.24 ) CRTN 78.6 23 P :49.61 ( 0.32 ) S :58.70 (-0.14 ) WMTN 78.9 245 P :49.45 ( 0.11 ) S :59.00 ( 0.07 ) LMTN 79.8 62 P :49.20 (-0.27 ) S :58.82 (-0.34 ) RHT 82.2 231 P :50.00 ( 0.15 ) S :59.50 (-0.32 ) GMG 88.1 210 P :51.07 ( 0.28 ) S :31:01.11 (-0.33 ) SMTN 129.1 44 P :58.10 ( 0.81 ) ***** 18 MAY 1986; 02:18 - THUNDERHEAD, NORTH CAROLINA ***** *TEIC OT= 02:18:05.2 LAT= 35.508N LON= 83.642W DEP= 15.7 KM MDB= 0.9 NO= 10, GAP= 141 DEG, RMS RES= 0.08 SEC, Q= C, SQD= B/C ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.7 KM, AZ= 63 DEG; ERHMIN= 0.2 KM; ERZ= 1.0 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) TKL 20.5 324 eP 02:18:09.60 (-0.01 ) eS 02:18:12.85 ( 0.03 ) WSSR 26.2 167 eP :10.65 ( 0.10 ) eS :14.35 (-0.09 ) LMTN 47.2 27 eP :13.35 (-0.24 ) eS :19.35 (-0.35 ) GBTN 54.5 289 eP :15.50 ( 0.83X) eS :21.50 (-0.07 ) BBG 72.0 192 eP :17.50 ( 0.01 ) eS :26.50 ( 0.05 ) ORT 74.7 307 eS :27.50 ( 0.56X) CRTN 78.8 347 eP :18.50 ( 0.15 ) eS :28.30 ( 0.36X) SMTN 105.4 23 eP :25.70 ( 3.17X) eS :34.00 (-1.17X) ***** 19 MAY 1986; 23:46 - NIOTA, TENNESSEE ***** *TEIC OT= 23:46:47.1 LAT= 35.516N LON= 84.529W DEP= 10.6 KM MDB= 2.8 NO= 46, GAP= 42 DEG, RMS RES= 0.14 SEC, Q= A, SQD= A/A ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.2 KM, AZ= -40 DEG; ERHMIN= 0.1 KM; ERZ= 0.4 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) CBT 10.1 75 Pc 23:46:49.70 ( 0.07 ) S 23:46:52.08 ( 0.57 ) ETT 22.2 162 iPc :51.50 ( 0.17 ) iS :54.30 (-0.15 ) RCT 22.5 212 Pc :51.44 ( 0.10 ) S :54.72 ( 0.25 ) GBTN 33.3 60 iP :53.10 ( 0.05 ) iS :57.30 (-0.13 ) ORT 48.1 25 ePd :55.40 (-0.07 ) eS :47:02.60 ( 0.98X) WMTN 50.2 234 ePd :55.80 (-0.01 ) iS :02.13 (-0.08 ) DCT 52.2 169 P- :56.10 (-0.07 ) S :02.20 (-0.62 ) BHT 52.6 314 ePc :56.30 ( 0.04 ) RHT 58.3 214 Pd :57.12 (-0.02 ) S :04.00 (-0.50 ) TKL 70.2 77 eP :59.10 ( 0.00 ) eS :07.60 (-0.29 ) GMG 73.7 190 eP :59.66 (-0.09 ) HPK 74.3 52 eP :59.90 ( 0.17 ) eS :08.80 (-0.19 ) WSSR 90.3 107 ePc :47:02.55 ( 0.16 ) CPO 94.9 276 eP :02.91 (-0.07 ) eS :14.29 (-0.32 ) RCG 95.8 231 eP+ :03.15 ( 0.05 ) ANTN 96.5 319 iPc :02.91 (-0.33 ) S :14.32 (-0.74 ) BBG 96.7 137 iP+ :03.40 ( 0.04 ) eS :15.20 (-0.07 ) CRTN 98.0 39 ePc :03.56 ( 0.17 ) eS :15.52 ( 0.20 ) ONTN 107.4 4 eP :04.54 (-0.36 ) eS :17.90 (-0.03 ) LMTN 109.5 68 ePc :05.10 (-0.12 ) iS :18.08 (-0.41 ) PDTN 123.0 258 eP :07.31 ( 0.05 ) eS :21.83 (-0.18 ) LKGA 131.2 221 eP :08.63 ( 0.07 ) RBNC 141.2 97 ePc :10.50 ( 0.26 ) eS :27.30 ( 0.14 ) CCVA 143.4 33 eP :11.40 ( 1.00X) TVG 144.8 209 P- :11.70 ( 1.10X) S :28.10 ( 0.32 ) ABTN 148.8 286 eP :11.45 ( 0.29 ) iS :29.46 ( 0.70 ) SMTN 154.9 51 eP :12.30 ( 0.10 ) eS :30.60 ( 0.05 ) RICH 161.0 73 eP :14.35 ( 1.18X) SSKY 181.9 322 eP :16.52 ( 0.25 ) eS :39.28 ( 1.68X) OCA 200.6 241 P :20.30 ( 1.16X) S :44.60 ( 2.04X) MSAL 209.0 250 eP :20.33 (-0.09X) eS :45.37 ( 0.59X) TRYN 209.2 97 eP :21.20 ( 0.66X) iS :45.50 ( 0.52X) IVA 213.5 130 P :22.00 ( 0.90X) SHTN 236.1 269 eP :24.65 ( 0.07X) eS :52.72 ( 0.75X) BGKY 243.8 313 eP :26.18 ( 0.46X) eS :55.16 ( 1.20X) GFM 254.7 74 eP :28.00 ( 0.71X) eS :58.00 ( 1.34X) CH6 258.6 134 P :21.90 (-5.60X) ETG 269.5 156 P :31.00 ( 2.14X) S :48:03.70 ( 4.32X) PLVA 329.1 66 eP :37.10 ( 0.77X) eS :12.80 ( 0.50X) ----- *GIT OT= 23:46:47.4 LAT= 35.530N LON= 84.541W DEP= 9.7 KM MDB= 2.6 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.2 KM, AZ= -72 DEG; ERHMIN= 0.2 KM; ELLIPSE AREA= 0.1 SQ KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) CBT 11.0 85 P 23:46:49.70 (-0.11 ) S 23:46:52.08 ( 0.49 ) RCT 23.2 208 P :51.44 (-0.10 ) S :54.72 ( 0.12 ) ETT 24.0 161 P :51.60 (-0.06 ) S :54.30 (-0.50 ) GBTN 33.5 63 P :53.10 (-0.05 ) S :57.30 (-0.08 ) ORT 48.3 25 P :55.40 (-0.10 ) BHT 50.7 314 P :56.70 ( 0.82 ) DCT 53.9 168 P :56.10 (-0.30 ) S :47:02.20 (-0.82 ) RHT 59.0 212 P :57.12 (-0.10 ) S :04.00 (-0.43 ) TKL 70.9 78 P :59.10 (-0.04 ) S :07.30 (-0.46 ) HPK 74.2 54 P :59.90 ( 0.24 ) S :08.80 ( 0.13 ) GMG 74.9 189 P :59.66 (-0.13 ) WSSR 92.0 108 P :47:02.55 ( 0.01 ) CPO 93.9 275 P :02.91 ( 0.07 ) S :14.29 ( 0.12 ) RCG 96.0 230 P :03.22 ( 0.04 ) BBG 98.8 138 P :03.80 ( 0.18 ) S :15.60 ( 0.06 ) ANTN 99.9 315 P :02.91 (-0.90 ) S :14.32 (-1.55 ) RBNC 142.7 98 P :10.63 (-0.03 ) S :27.31 (-0.42 ) TVG 145.8 209 P :11.70 ( 0.54 ) SMTN 154.3 52 P :12.40 (-0.11 ) S :31.30 ( 0.36 ) OCA 201.2 240 P :20.30 ( 0.38 ) S :44.60 ( 0.83 ) TRYN 209.6 98 P :21.20 (-0.02 ) S :46.10 ( 0.06 ) IVA 216.3 130 P :22.00 (-0.27 ) GFM 254.5 75 P :28.50 ( 0.35 ) S :58.30 ( 0.26 ) ETG 272.0 156 P :31.00 ( 0.19 ) ***** 23 MAY 1986; 17:48 - ACCOKEE, MARYLAND ***** *VTSO OT= 17:48:12.2 LAT= 38.689N LON= 77.038W DEP= 0.2 KM MDB= 2.5 NO= 13, GAP= 315 DEG, RMS RES= 0.32 SEC, Q= D, SQD= D/D ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 3.4 KM, AZ= -49 DEG; ERHMIN= 2.0 KM; ERZ= 5.6 KM; Q= D) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) CNV 61.2 209 eP 17:48:22.53 ( 0.30 ) eS 17:48:29.64 ( 0.08 ) NA2 87.9 225 ePd :26.60 (-0.01 ) eS :36.65 (-0.50 ) NA5 96.9 219 ePd :28.15 ( 0.05 ) eS :39.24 (-0.47 ) NA12 107.5 223 ePd :29.59 (-0.24 ) eS :42.74 ( 0.03 ) GHV 136.5 224 ePd :34.27 (-0.32 ) eS :51.65 ( 0.70 ) CVL 147.1 238 eP :36.30 (-0.04 ) eS :54.48 ( 0.51 ) PBV 194.3 193 eP :43.26 ( 0.12 ) eS :49:07.22 ( 1.59X) FRV 201.7 216 eP :43.43 (-0.63X) eS :08.54 ( 1.32X) BV1 235.9 257 eP :49.56 ( 1.26X) eS :16.94 ( 2.38X) BV3 243.3 259 eP :50.59 ( 1.38X) eS :16.88 ( 0.76X) BV4 246.0 262 eP :50.93 ( 1.39X) eS :18.84 ( 2.13X) BV2 259.0 257 eP :53.33 ( 2.22X) eS :22.84 ( 3.43X) ***** 30 MAY 1986; 17:44 - MEADOW, TENNESSEE ***** *TEIC OT= 17:44:24.6 LAT= 35.666N LON= 84.188W DEP= 15.8 KM MDB= 1.4 NO= 18, GAP= 106 DEG, RMS RES= 0.13 SEC, Q= B, SQD= A/B ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.3 KM, AZ= -61 DEG; ERHMIN= 0.3 KM; ERZ= 0.6 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) GBTN 2.0 270 iP 17:44:27.50 ( 0.14 ) eS 17:44:29.30 (-0.08 ) CBT 25.3 236 eP :30.00 ( 0.32 ) eS :33.60 ( 0.22 ) ORT 29.0 339 iPc :30.29 ( 0.08 ) iS :34.14 (-0.16 ) TKL 37.5 91 eP+ :31.50 ( 0.02 ) iS :36.47 (-0.03 ) HPK 40.2 44 eS :35.50 (-1.60X) ETT 44.8 213 eP+ :32.70 ( 0.08 ) eS :38.20 (-0.28 ) RCT 55.8 230 eP :35.30 ( 1.05X) eS :42.50 ( 1.21X) CRTN 67.0 28 eP :36.14 ( 0.20 ) DCT 71.1 197 eP :36.90 ( 0.27 ) eS :45.30 (-0.10 ) LMTN 74.7 71 eS :45.89 (-0.50 ) WMTN 85.0 237 eS :49.44 ( 0.37 ) BBG 94.4 159 eP :41.90 ( 1.60X) eS :51.60 (-0.16 ) SMTN 120.6 49 eP :44.80 ( 0.57 ) eS :58.50 (-0.07 ) ABTN 175.4 279 eS :45:14.70 ( 1.79X) GFM 220.6 76 eS :25.00 (-0.28X) ----- *GIT OT= 17:44:25.1 LAT= 35.688N LON= 84.187W DEP= 13.0 KM MDB= 1.1 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.6 KM, AZ= -46 DEG; ERHMIN= 0.3 KM; ELLIPSE AREA= 0.6 SQ KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) GBTN 3.3 221 P 17:44:27.30 ( 0.02 ) S 17:44:29.00 ( 0.10 ) CBT 26.9 232 P :30.00 ( 0.01 ) S :33.60 ( 0.01 ) TKL 37.5 95 P :31.50 (-0.09 ) S :36.47 ( 0.10 ) ETT 47.0 211 P :32.70 (-0.38 ) S :38.20 (-0.74 ) RCT 57.6 229 P :35.30 ( 0.56 ) S :42.50 ( 0.68 ) DCT 73.5 197 P :36.90 (-0.37 ) S :45.30 (-0.91 ) BBG 96.7 159 P :41.90 ( 0.93 ) SMTN 118.5 50 P :44.40 (-0.05 ) GFM 219.3 78 P :45:00.00 (-0.30 ) ***** 2 JUNE 1986; 07:46 - ENGLEWOOD, TENNESSEE ***** *TEIC OT= 07:46:12.4 LAT= 35.441N LON= 84.498W DEP= 18.6 KM MDB= 2.5 NO= 38, GAP= 41 DEG, RMS RES= 0.12 SEC, Q= A, SQD= A/A ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.2 KM, AZ= -31 DEG; ERHMIN= 0.2 KM; ERZ= 0.4 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) CBT 13.0 33 P 07:46:16.30 ( 0.06 ) S 07:46:19.20 ( 0.16 ) ETT 13.4 163 iP+ :16.40 ( 0.08 ) iS :19.00 (-0.18 ) RCT 18.2 234 P :17.10 ( 0.32 ) S :20.00 ( 0.03 ) GBTN 36.1 46 iP+ :19.10 (-0.06 ) iS :24.10 ( 0.01 ) DCT 43.5 171 P :20.00 (-0.29 ) S :25.30 (-0.74X) WMTN 48.2 244 iPd :21.00 ( 0.03 ) iS :27.10 (-0.12 ) ORT 54.8 19 iPd :21.90 (-0.06 ) BHT 60.6 318 iPc :23.00 ( 0.10 ) eS :30.30 (-0.26 ) GMG 66.1 194 eP :23.80 ( 0.03 ) TKL 69.9 70 iP :24.20 (-0.06 ) eS :32.80 (-0.11 ) WSSR 85.6 102 iPc :27.05 ( 0.27 ) BBG 88.7 135 iP :27.20 (-0.06 ) eS :38.20 ( 0.09 ) RCG 93.1 236 ePd :27.85 ( 0.04 ) eS :39.10 ( 0.05 ) CDG 93.4 190 S :38.90 (-0.22 ) CPO 98.8 280 iPc :28.70 ( 0.01 ) CRTN 103.0 35 eP :29.10 (-0.17 ) ANTN 104.7 321 ePc :29.10 (-0.50 ) LMTN 110.4 63 ePd :30.00 (-0.48 ) ONTN 115.5 2 ePd :30.80 (-0.46 ) PDTN 124.2 262 eP :32.50 (-0.06 ) LKGA 127.0 225 eP :32.80 (-0.22 ) RBNC 137.7 93 eP :34.90 ( 0.10 ) eS :51.10 (-0.05 ) TVG 139.0 212 P :34.90 ( 0.08X) S :51.40 ( 0.22 ) CCVA 149.1 30 eP :36.65 ( 0.27 ) eS :54.95 ( 1.07X) ABTN 154.0 289 eP :37.00 (-0.06 ) SMTN 158.1 48 eP :37.50 (-0.30 ) eS :59.40 ( 3.06X) RICH 161.0 70 eP :38.50 ( 0.24 ) HGA 179.9 224 P :41.00 (-0.08 ) TRYN 205.6 95 eP :45.40 ( 0.32X) eS :47:09.40 ( 0.46X) TDA 253.1 214 S :20.80 ( 0.96X) GFM 254.4 72 eP :52.00 ( 0.20X) eS :21.70 ( 1.15X) PWLA 328.7 262 eP :47:01.20 ( 0.56X) eS :40.40 ( 4.55X) PLVA 330.0 65 eP :00.00 (-0.98X) eS :35.00 (-1.44X) ----- *GIT OT= 07:46:12.6 LAT= 35.430N LON= 84.501W DEP= 18.6 KM MDB= 2.5 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.4 KM, AZ= -39 DEG; ERHMIN= 0.3 KM; ELLIPSE AREA= 0.3 SQ KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ETT 12.3 160 P 07:46:17.00 ( 0.77 ) CBT 14.1 31 P :16.30 (-0.09 ) S 07:46:19.20 ( 0.02 ) RCT 17.4 237 P :17.10 ( 0.37 ) S :20.00 ( 0.23 ) GBTN 37.1 45 P :19.30 (-0.04 ) S :24.10 (-0.18 ) DCT 42.4 170 P :20.00 (-0.12 ) S :25.30 (-0.33 ) WMTN 47.5 245 P :21.00 ( 0.13 ) S :27.10 ( 0.16 ) ORT 57.3 17 P :21.90 (-0.47 ) TKL 70.5 69 P :23.90 (-0.51 ) S :32.20 (-0.87 ) BBG 88.3 134 P :27.20 ( 0.02 ) S :38.20 ( 0.32 ) CDG 92.2 190 S :38.90 (-0.04 ) CPO 99.0 281 P :28.70 (-0.17 ) CRTN 104.0 35 P :29.10 (-0.55 ) LMTN 111.0 63 P :30.00 (-0.75 ) PDTN 123.9 262 P :32.50 (-0.28 ) LKGA 126.3 225 P :32.80 (-0.35 ) TVG 138.1 212 P :34.90 (-0.11 ) S :51.40 (-0.04 ) ABTN 153.0 288 P :37.00 (-0.34 ) SMTN 158.6 48 P :37.50 (-0.71 ) HGA 179.4 224 P :41.00 (-0.45 ) TRYN 204.6 96 P :45.40 ( 0.05 ) S :47:09.40 ( 0.04 ) TDA 252.8 214 S :20.80 (-1.28 ) ETG 260.4 156 S :23.00 (-1.05 ) ***** 6 JUNE 1986; 08:49 - CHEROKEE COUNTY, NORTH CAROLINA ***** *TEIC OT= 08:49:54.9 LAT= 35.222N LON= 84.293W DEP= 18.0 KM MDB= 0.8 NO= 14, GAP= 90 DEG, RMS RES= 0.11 SEC, Q= B, SQD= A/B ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.5 KM, AZ= -50 DEG; ERHMIN= 0.3 KM; ERZ= 1.0 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ETT 18.8 308 eP 08:49:59.40 ( 0.08 ) eS 08:50:02.50 (-0.05 ) GBTN 49.9 9 eP :50:03.60 (-0.08 ) eS :10.10 ( 0.01 ) GMG 52.7 221 eP :04.20 (-0.02 ) eS :10.85 (-0.18 ) BBG 58.5 131 eP :05.20 ( 0.07 ) eS :12.15 (-0.45 ) WMTN 62.0 273 eP :05.80 ( 0.25 ) eS :13.30 (-0.02 ) WSSR 65.3 84 eP :06.60 ( 0.42 ) eS :14.30 (-0.11 ) TKL 67.5 44 eP :06.50 ( 0.12 ) eS :14.50 (-0.26 ) ABTN 180.4 295 eS :45.30 ( 0.75X) ***** 11 JUNE 1986; 09:03 - CONCORD, TENNESSEE ***** *TEIC OT= 09:03:51.9 LAT= 35.780N LON= 84.192W DEP= 12.9 KM MDB= 1.9 NO= 13, GAP= 107 DEG, RMS RES= 0.20 SEC, Q= B, SQD= B/B ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.7 KM, AZ= 52 DEG; ERHMIN= 0.5 KM; ERZ= 1.0 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) GBTN 12.8 188 iPc 09:03:54.70 (-0.36 ) iS 09:03:57.50 ( 0.14 ) ORT 17.6 325 iPc :55.73 ( 0.05 ) eS :58.44 ( 0.02 ) TKL 40.2 110 ePc :59.10 (-0.01 ) iS :04:04.50 ( 0.13 ) CRTN 56.3 34 eP :04:02.25 ( 0.57 ) LMTN 71.8 80 eS :12.83 (-0.29 ) WSSR 78.8 135 eP :05.75 ( 0.41 ) ONTN 81.0 344 eP :05.56 (-0.03 ) WMTN 92.3 230 eP :08.96 ( 1.68X) eS :18.74 ( 0.25 ) ANTN 103.3 295 eP :09.30 ( 0.30 ) eS :22.24 ( 0.77 ) ----- *GIT OT= 09:03:52.1 LAT= 35.786N LON= 84.217W DEP= 11.4 KM MDB= 1.9 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.4 KM, AZ= -1 DEG; ERHMIN= 0.3 KM; ELLIPSE AREA= 0.4 SQ KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) GBTN 13.4 178 P 09:03:54.70 (-0.27 ) S 09:03:56.60 (-0.49 ) ORT 17.4 331 P :55.73 ( 0.22 ) S :58.44 ( 0.41 ) CBT 33.0 214 P :58.20 ( 0.37 ) S :04:02.30 ( 0.25 ) TKL 42.6 110 P :59.34 ( 0.03 ) S :04.36 (-0.27 ) CRTN 57.0 36 P :04:02.25 ( 0.64 ) LMTN 73.9 81 S :12.83 (-0.46 ) DCT 83.3 193 P :06.00 ( 0.18 ) S :16.20 ( 0.29 ) WMTN 91.1 229 S :18.74 ( 0.66 ) RHT 99.3 218 S :20.80 ( 0.45 ) ANTN 108.1 293 P :09.30 (-0.50 ) S :22.24 (-0.57 ) ***** 13 JUNE 1986; 13:48 - SUMMERVILLE, SOUTH CAROLINA ***** *USGS OT= 13:48:21.9 LAT= 32.985N LON= 80.180W DEP= 7.1 KM MDL= 1.1 NO= 14, GAP= 91 DEG, RMS RES= 0.21 SEC, Q= B, SQD= B/B ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 1.3 KM, AZ= 59 DEG; ERHMIN= 1.0 KM; ERZ= 3.9 KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) SVS 6.6 254 iPd 13:48:24.05 ( 0.25 ) eS 13:48:24.98 (-0.24 ) RGR 8.9 188 eP :24.45 ( 0.36 ) eS :26.47 ( 0.74 ) eS :25.64 (-0.67 ) MGS 10.4 159 iPc :24.64 ( 0.35 ) eS :25.92 (-0.17 ) ZIN 13.8 8 iPc :24.83 ( 0.03 ) WAS 17.5 209 iPc :24.45 ( 0.07 ) eS :27.66 (-0.34 ) eS :28.42 (-0.16 ) HBF 19.4 253 iPd :25.12 (-0.06 ) eS :27.01 (-0.64 ) DRC 23.8 305 ePd :26.35 (-0.05 ) eS :29.59 (-0.18 ) eS :29.96 (-0.02 ) SGS 38.6 307 eP :28.94 ( 0.09 ) TRK 40.5 68 iPd :28.94 (-0.24 ) eS :32.86 (-1.77 ) ***** 17 JUNE 1986; 03:31 - UNION COUNTY, NORTH CAROLINA ***** *USC OT= 03:31:19.4 LAT= 34.865N LON= 80.323W DEP= 0.2 KM MDL= 2.2 NO= 12, GAP= 341 DEG, RMS RES= 0.13 SEC, Q= D, SQD= C/D ERROR ESTIMATES (HYPO71) (ERH= 3.8 KM; ERZ= 1.9 KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) LHS 61.7 226 P 03:31:29.35 (-0.03 ) 007 107.1 239 P :36.50 (-0.19 ) S 03:31:50.10 (-0.11 ) 001 107.1 236 P :36.85 ( 0.16 ) S :50.40 ( 0.19 ) JSC 107.7 233 P :36.80 ( 0.00 ) S :50.30 (-0.09 ) 06A 110.3 235 P :37.30 ( 0.09 ) S :51.20 ( 0.07 ) 002 111.8 228 P :37.30 (-0.21 ) PRM 206.4 245 P :51.80 ( 0.20 ) S :76.80 ( 0.06 ) ***** 21 JUNE 1986; 00:40 - SODDY, TENNESSEE ***** *TEIC OT= 00:40:02.3 LAT= 35.374N LON= 85.144W DEP= 16.6 KM MDB= 1.7 NO= 20, GAP= 176 DEG, RMS RES= 0.19 SEC, Q= C, SQD= C/C ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.5 KM, AZ= -56 DEG; ERHMIN= 0.3 KM; ERZ= 5.5 KM; Q= D) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) RHT 40.6 144 P 00:40:09.80 ( 0.19 ) S 00:40:14.30 (-0.67 ) RCT 44.0 94 P :10.80 ( 0.68 ) S :15.90 ( 0.04 ) RCG 48.0 203 eP :10.70 (-0.05 ) eS :16.84 (-0.12 ) BHT 55.5 19 eP :12.00 ( 0.06 ) eS :18.91 (-0.09 ) ETT 62.8 95 eP :12.20 (-0.83X) eS :20.50 (-0.39 ) CBT 68.2 74 S :22.40 ( 0.15X) GMG 71.3 143 eP :14.60 ( 0.22 ) eS :23.23 ( 0.00 ) DCT 74.9 118 P :15.00 ( 0.14 ) S :23.80 (-0.26 ) GBTN 90.6 69 eP :17.00 (-0.24 ) eS :28.00 (-0.18 ) TVG 111.5 187 P :20.20 (-0.25 ) S :23.80 (-9.94X) TKL 128.2 75 eP :23.00 (-0.01 ) eS :38.00 (-0.16 ) BBG 133.6 114 eP :24.20 ( 0.24 ) eS :39.50 (-0.30 ) ----- *GIT OT= 00:40:03.5 LAT= 35.327N LON= 85.110W DEP= 15.8 KM MDB= 1.3 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.6 KM, AZ= 68 DEG; ERHMIN= 0.4 KM; ELLIPSE AREA= 0.7 SQ KM) 5 Stations Used (NO= 8): RHT (Dmin= 34.6 km), RCT, CBT, DCT, and TVG See TEIC listing for arrival time data ***** 24 JUNE 1986; 19:22 - MARYVILLE, TENNESSEE ***** *GIT OT= 19:22:41.9 LAT= 35.980N LON= 83.940W DEP= 28.8 KM MDB= 2.8 ERROR ELLIPSE PROJECTED SEMI-AXES (LOCA) (ERHMAX= 0.2 KM, AZ= -41 DEG; ERHMIN= 0.1 KM; ELLIPSE AREA= 0.1 SQ KM) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) TKL 38.7 157 P 19:22:49.50 (-0.14 ) S 19:22:54.80 (-0.49 ) GBTN 42.6 215 P :50.00 (-0.14 ) S :55.60 (-0.56 ) CBT 65.5 222 P :53.40 ( 0.06 ) S :23:01.90 ( 0.20 ) SMTN 81.4 57 P :55.50 (-0.18 ) S :05.50 (-0.26 ) WSSR 84.6 157 P :56.40 ( 0.24 ) ETT 86.3 213 P :56.60 ( 0.18 ) S :07.30 ( 0.25 ) BHT 92.0 261 P :57.61 ( 0.34 ) RCT 96.2 223 P :57.90 (-0.01 ) S :10.20 ( 0.58 ) RICH 101.4 94 P :58.90 ( 0.20 ) RBNC 110.9 129 P :23:00.41 ( 0.27 ) DCT 111.6 203 P :00.20 (-0.04 ) S :13.20 (-0.47 ) BBG 123.2 175 P :01.80 (-0.22 ) S :16.50 (-0.24 ) RHT 131.9 221 P :03.20 (-0.13 ) S :18.90 (-0.13 ) BRBC 152.0 100 P :06.62 ( 0.21 ) TRYN 172.6 118 P :09.50 (-0.05 ) S :30.00 ( 0.20 ) GFM 192.6 86 P :12.60 ( 0.01 ) S :35.40 ( 0.34 ) BENN 211.7 103 P :15.61 ( 0.14 ) TVG 217.5 215 P :16.30 (-0.04 ) S :42.00 ( 0.43 ) HGA 259.2 223 P :22.60 ( 0.02 ) ----- *TEIC OT= 19:22:42.0 LAT= 35.990N LON= 83.931W DEP= 24.3 KM MDB= 2.9 NO= 40, GAP= 59 DEG, RMS RES= 0.15 SEC, Q= A, SQD= A/A ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.2 KM, AZ= -74 DEG; ERHMIN= 0.2 KM; ERZ= 0.6 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) HPK 8.5 147 iP+ 19:22:46.20 (-0.03 ) CRTN 24.7 19 iPd :47.81 ( 0.13 ) iS 19:22:51.69 (-0.11 ) TKL 39.4 159 iPc :49.55 (-0.05 ) iS :55.40 ( 0.27 ) GBTN 43.9 215 iP :50.20 (-0.03 ) iS :56.00 (-0.22 ) LMTN 48.5 103 ePc :50.75 (-0.16 ) iS :57.25 (-0.15 ) CBT 66.8 222 P :53.40 (-0.16 ) S :23:01.90 (-0.07 ) ONTN 71.4 320 iPc :54.27 (-0.02 ) iS :03.50 ( 0.26 ) SMTN 80.2 57 iPd :55.50 (-0.12 ) eS :05.50 (-0.04 ) WSSR 85.2 158 iPc :56.55 ( 0.10 ) ETT 87.6 213 iPd :56.60 (-0.11 ) iS :07.40 (-0.04 ) BHT 92.9 260 iPd :57.81 ( 0.26 ) RCT 97.4 223 P :57.90 (-0.25 ) S :10.20 ( 0.27 ) RICH 100.6 94 eP :59.10 ( 0.37 ) BRTN 103.9 67 eP+ :59.08 (-0.11 ) RBNC 110.6 129 iPc :23:00.60 ( 0.23 ) DCT 112.9 203 P :00.20 (-0.33 ) S :13.20 (-0.84X) ANTN 118.9 280 iP- :01.30 (-0.16 ) BBG 124.2 175 eP- :02.10 (-0.27 ) eS :17.00 (-0.23 ) WMTN 125.3 229 iP+ :02.49 ( 0.09 ) iS :17.88 ( 0.61 ) RHT 132.9 221 P :03.20 (-0.36 ) S :18.90 (-0.38 ) BRBC 151.1 100 eP :06.90 ( 0.35 ) SLTN 170.4 72 eP :09.45 ( 0.20 ) TRYN 172.4 117 iP- :09.50 (-0.16 ) eS :30.00 ( 0.17 ) SSKY 189.5 299 eP :12.10 (-0.08 ) eS :35.60 ( 1.40X) PDTN 191.1 246 eP :12.22 (-0.22 ) eS :36.00 ( 1.36X) GFM 191.8 85 eP :12.60 (-0.13 ) eS :35.40 ( 0.26 ) BENN 210.6 102 eP :15.75 ( 0.36X) TVG 218.2 215 P :16.30 ( 0.06X) S :42.00 ( 0.79X) HGA 259.4 223 P :22.60 ( 1.31X) ***** 24 JUNE 1986; 22:54 - KNOXVILLE, TENNESSEE ***** *TEIC OT= 22:54:46.5 LAT= 35.986N LON= 83.931W DEP= 24.1 KM MDB= 1.8 NO= 29, GAP= 59 DEG, RMS RES= 0.14 SEC, Q= A, SQD= A/A ERROR ELLIPSE PROJECTED SEMI-AXES (HYPOELLIPSE; CHI SQUARE 68% 1 DOF) (ERHMAX= 0.3 KM, AZ= -83 DEG; ERHMIN= 0.2 KM; ERZ= 0.5 KM; Q= A) STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) HPK 8.2 145 iPc 22:54:50.50 (-0.19 ) iS 22:54:53.80 ( 0.07 ) CRTN 25.1 19 iPd :52.31 ( 0.11 ) iS :56.28 (-0.06 ) TKL 39.1 159 iP :54.10 ( 0.06 ) iS :59.80 ( 0.27 ) GBTN 43.6 216 iP :54.80 ( 0.12 ) iS :55:00.40 (-0.23 ) LMTN 48.4 103 ePc :55.27 (-0.13 ) eS :01.81 (-0.06 ) ONTN 71.7 320 ePc :58.79 (-0.04 ) eS :08.15 ( 0.34 ) SMTN 80.4 57 eP :55:00.00 (-0.15 ) eS :10.20 ( 0.10 ) WSSR 84.8 158 eP :00.90 ( 0.00 ) eS :11.31 (-0.08 ) ETT 87.3 213 eP :01.00 (-0.16 ) eS :11.70 (-0.15 ) BHT 92.8 261 eP :02.05 ( 0.02 ) eS :13.91 ( 0.56 ) RBNC 110.4 129 eP :04.87 ( 0.04 ) eS :18.22 ( 0.03 ) ANTN 118.9 280 eP :05.86 (-0.11 ) eS :20.46 ( 0.30 ) BBG 123.9 175 eP :07.00 ( 0.18 ) eS :21.60 (-0.02 ) WMTN 125.0 229 eP :07.07 ( 0.21 ) eS :22.40 ( 0.70X) GMG 141.6 209 eP :09.65 ( 0.17 ) eS :26.12 (-0.12 ) SLTN 170.5 72 eS :35.14 ( 1.49X) HYPOCENTRAL PARAMETERS, MAGNITUDES, AND ARRIVAL TIMES FOR RESERVOIR ACTIVITY: JANUARY THROUGH JUNE 1986 ***** 11 JANUARY 1986; 03:10 - RICHARD B. RUSSELL DAM, SC ***** Oper Origin Lat-N Lon-W Dep MDB ERHMAX AZ ERHMIN AREA GIT 031012.5 34.073 82.622 1.0F 0.0 0.2 44 0.1 0.1 STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) BEV 10.0 326 P 03:10:14.20 (-0.08 ) S 03:10:15.50 (-0.09 ) LDV 10.4 280 P :14.40 ( 0.05 ) S :15.70 (-0.01 ) CH6 21.7 157 P :16.10 (-0.11 ) S :18.80 (-0.13 ) ***** 7 FEBRUARY 1986; 23:04 - MONTICELLO RESERVOIR, SC ***** Oper Origin Lat-N Lon-W Dep MDL NO Gap RMS ERH ERZ Q SQD USC 230406.8 34.343 81.352 1.9 1.3 5 146 0.02 0.3 2.9 C B/D STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) 003 9.7 276 P 23:04:08.40 (-0.04 ) S 23:04:09.80 ( 0.02 ) JSC 11.0 129 P :08.65 ( 0.01 ) 004 15.7 53 Pd :09.40 ( 0.01 ) S :11.50 (-0.00 ) ***** 13 FEBRUARY 1986; 11:35 - LAKE KEOWEE, SC ***** Oper Origin Lat-N Lon-W Dep MDL NO Gap RMS ERH ERZ Q SQD USC 113545.9 34.793 82.938 1.2 3.2 18 110 0.07 0.3 0.7 B A/C STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) SMT 15.6 349 Pu 11:35:48.62 ( 0.07 ) S 11:35:50.44 ( 0.00 ) LPM 22.1 339 Pu :49.57 (-0.03 ) S :52.20 (-0.05 ) BG3 22.2 2 Pd :49.60 (-0.02 ) S :52.20 (-0.07 ) RBNC 62.8 356 Pu :56.30 ( 0.15 ) S :36:03.50 (-0.02 ) LDV 75.2 162 P+ :58.20 ( 0.03 ) S :06.90 (-0.08 ) TRYN 79.3 51 Pd :59.20 ( 0.38 ) BEV 80.3 166 Pd :59.05 ( 0.08 ) S :08.35 (-0.02 ) BBG 80.4 276 Pd :58.95 (-0.04 ) S :08.50 ( 0.10 ) PRM 94.9 146 Pu :36:01.30 (-0.03 ) CH6 106.6 159 P+ :03.20 (-0.02 ) BRBC 120.6 29 P- :05.40 (-0.08 ) ----- Oper Origin Lat-N Lon-W Dep MDB ERHMAX AZ ERHMIN AREA GIT 113546.9 34.708 82.992 2.0F 2.9 0.8 30 0.2 0.6 STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) LDV 68.3 155 P 11:35:58.20 (-0.06 ) S 11:36:06.90 ( 0.32 ) BEV 72.6 161 P :59.10 ( 0.14 ) S :07.90 ( 0.11 ) CHF 84.5 154 P :36:01.30 ( 0.42 ) S :11.10 (-0.02 ) PRM 90.4 140 P :01.30 (-0.53 ) DCT 135.8 286 P :08.80 (-0.34 ) S :25.50 ( 0.07 ) ***** 13 FEBRUARY 1986; 17:33 - LAKE KEOWEE, SC ***** Oper Origin Lat-N Lon-W Dep MDB ERHMAX AZ ERHMIN AREA GIT 173336.8 34.759 83.023 2.0F 1.2 4.5 24 1.5 21.4 STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) IVA 59.7 155 P 17:33:48.00 ( 1.25 ) S 17:33:56.00 ( 1.96 ) LDV 74.7 155 P :50.80 ( 1.61 ) BEV 78.9 160 P :51.00 ( 1.11 ) S :34:01.60 ( 2.12 ) CHF 90.9 154 P :53.00 ( 1.17 ) CH6 106.3 155 P :56.40 ( 2.07 ) DCT 131.5 284 P :34:01.40 ( 2.98 ) ETG 165.6 191 S :26.40 ( 2.66 ) ***** 14 FEBRUARY 1986; 10:26 - LAKE KEOWEE, SC ***** Oper Origin Lat-N Lon-W Dep MDL NO Gap RMS ERH ERZ Q SQD USC 102617.5 34.796 82.937 2.8 1.3 6 231 0.04 0.7 1.5 C A/D STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ONH 4.7 232 Pu 10:26:18.44 ( 0.07) S 10:26:19.00 (-0.04) LPM 21.8 339 P :21.04 (-0.05) S :23.70 (-0.01) BG3 21.9 1 P :21.12 ( 0.03) S :23.72 ( 0.00) ***** 16 FEBRUARY 1986; 04:26 - LAKE KEOWEE, SC ***** Oper Origin Lat-N Lon-W Dep MDL NO Gap RMS ERH ERZ Q SQD USC 042604.3 34.788 82.937 5.0 2.0 10 145 0.06 0.4 0.7 B A/C STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ONH 4.2 242 Pu 04:26:05.46 ( 0.06) S 04:26:06.12 (-0.06) KDD 4.3 146 Pu :05.41 ( 0.01) S :06.21 ( 0.02) SMT 16.2 349 P :07.15 ( 0.05) S :09.15 ( 0.03) LPM 22.7 339 P+ :08.06 (-0.07) S :10.94 ( 0.06) BG3 22.8 1 Pd :08.12 (-0.02) S :10.77 (-0.13) ***** 16 FEBRUARY 1986; 04:30 - LAKE KEOWEE, SC ***** Oper Origin Lat-N Lon-W Dep MDL NO Gap RMS ERH ERZ Q SQD USC 043018.1 34.814 82.933 1.6 1.2 6 187 0.08 0.8 12.7 D C/D STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ONH 6.3 220 Pu 04:30:19.34 ( 0.14) S 04:30:19.93 (-0.08) KDD 6.7 163 Pd :19.30 ( 0.04) S :20.04 (-0.07) BG3 19.9 0 S :24.40 ( 0.63) LPM 20.2 336 Pu :21.44 ( 0.01) S :23.80 (-0.05) ***** 16 FEBRUARY 1986; 15:08 - LAKE KEOWEE, SC ***** Oper Origin Lat-N Lon-W Dep MDL NO Gap RMS ERH ERZ Q SQD USC 150826.1 34.792 82.932 3.0 1.4 8 153 0.05 0.4 1.2 B A/C STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) KDD 4.4 153 Pu 15:08:27.01 (-0.02) S 15:08:27.69 ( 0.01) ONH 4.8 240 Pu :27.15 ( 0.07) S :27.69 (-0.07) BG3 22.4 0 Pd :29.84 (-0.01) S :32.54 ( 0.01) LPM 22.5 338 Pu :29.82 (-0.05) S :32.62 ( 0.06) ***** 17 FEBRUARY 1986; 16:07 - LAKE KEOWEE, SC ***** Oper Origin Lat-N Lon-W Dep MDL NO Gap RMS ERH ERZ Q SQD USC 160746.5 34.795 82.948 2.9 1.8 7 151 0.04 0.4 1.2 B A/C STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ONH 3.9 224 Pu 16:07:47.39 ( 0.03) S 16:07:47.94 (-0.02) KDD 5.5 142 Pu :47.52 (-0.07) S :48.40 ( 0.05) SMT 15.2 352 S :50.92 (-0.04) LPM 21.6 341 Pd :50.16 ( 0.03) S :52.76 ( 0.04) ***** 28 FEBRUARY 1986; 04:12 - LAKE SINCLAIR, GA ***** *TEIC For informational purposes only Oper Origin Lat-N Lon-W Dep MDB NO Gap RMS ERH ERZ Q SQD TEIC 041255.7 33.191 83.118 0.2 2.4 10 316 0.1 2.5 1.1 D C/D STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ETG 24.4 297 P 04:13:00.00 ( 0.00 ) S 04:13:01.40 (-1.77X) CH6 94.5 36 P :15.00 ( 2.99X) S :27.30 ( 3.36X) BEV 105.9 20 P :16.00 ( 2.10X) S :29.30 ( 2.08X) LDV 113.8 21 P :17.10 ( 1.88X) S :31.00 ( 1.50X) CHF 136.2 48 P :16.10 (-2.56X) S :29.80 (-5.65X) BBG 197.4 341 eP :28.20 ( 0.01 ) eS :51.70 (-0.23 ) GMG 234.4 323 eP :34.30 ( 0.48 ) eS :14:00.50 (-1.18X) RBNC 240.6 3 ePd :35.81 ( 0.94X) eS :03.52 ( 0.02 ) TRYN 244.0 19 eP :36.92 ( 1.66X) eS :03.45 (-0.73X) ETT 266.9 333 ePc :38.26 (-0.21 ) eS :09.84 ( 0.11 ) TKL 280.3 348 eP :42.30 ( 2.24X) eS :11.60 (-0.88X) RCG 285.5 315 eS :13.60 (-0.02 ) GBTN 292.4 340 eP :41.50 (-0.04 ) eS :14.20 (-0.84X) RICH 303.9 5 eS :17.20 (-0.45X) ----- Oper Origin Lat-N Lon-W Dep MDB ERHMAX AZ ERHMIN AREA GIT 041257.9 33.296 83.245 1.0F 1.7 0.7 -41 0.2 0.5 STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ETG 9.8 267 P 04:13:00.00 ( 0.07 ) S 04:13:01.40 ( 0.07 ) CH6 93.7 45 P :15.00 ( 0.02 ) S :27.30 ( 0.42 ) BEV 99.8 28 P :16.00 (-0.10 ) S :29.30 ( 0.53 ) CHF 101.1 37 P :16.10 (-0.23 ) S :29.80 ( 0.63 ) LDV 107.7 29 P :17.10 (-0.43 ) S :31.00 (-0.21 ) ***** 28 FEBRUARY 1986; 06:36 - LAKE SINCLAIR, GA ***** Oper Origin Lat-N Lon-W Dep MDB ERHMAX AZ ERHMIN AREA GIT 063607.6 33.231 83.306 1.0F 2.0 0.5 -35 0.3 0.5 STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ETG 7.9 328 P 06:36:09.12 ( 0.06 ) S 06:36:10.50 ( 0.37 ) CH6 102.8 44 P :24.80 ( 0.18 ) S :37.20 ( 0.10 ) BEV 108.9 29 P :25.50 (-0.11 ) S :38.40 (-0.42 ) CHF 110.3 37 P :25.80 (-0.04 ) S :39.00 (-0.21 ) LDV 116.8 29 P :26.30 (-0.60 ) S :40.00 (-1.04 ) TDA 254.9 278 P :48.40 (-0.43 ) S :37:18.50 (-0.54 ) ***** 28 FEBRUARY 1986; 08:28 - LAKE SINCLAIR, GA ***** Oper Origin Lat-N Lon-W Dep MDB ERHMAX AZ ERHMIN AREA GIT 080443.4 33.297 83.441 1.0F 0.1 1.9 -66 0.8 4.6 STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ETG 8.4 94 P 08:04:45.10 ( 0.00 ) S 08:04:46.35 ( 0.00 ) CH6 107.2 52 P :05:01.10 ( 0.03 ) S :05:12.60 (-1.42 ) CHF 112.9 44 P :02.00 ( 0.02 ) S :15.50 (-0.11 ) ***** 28 FEBRUARY 1986; 08:37 - LAKE SINCLAIR, GA ***** Oper Origin Lat-N Lon-W Dep MDB ERHMAX AZ ERHMIN AREA GIT 083741.5 33.229 83.315 1.0F 1.1 1.1 -28 0.5 1.7 STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ETG 7.7 335 P 08:37:42.60 (-0.39 ) S 08:37:43.85 (-0.22 ) CH6 103.6 45 P :58.20 (-0.43 ) S :38:10.20 (-0.98 ) CHF 111.0 37 P :59.50 (-0.34 ) S :12.50 (-0.77 ) LDV 117.4 30 P :38:01.50 ( 0.62 ) S :15.50 ( 0.42 ) ***** 28 FEBRUARY 1986; 21:11 - LAKE SINCLAIR, GA ***** Oper Origin Lat-N Lon-W Dep MDB ERHMAX AZ ERHMIN AREA GIT 211118.0 33.314 83.435 1.0F 0.7 0.8 -58 0.4 0.9 STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ETG 8.2 108 P 21:11:19.80 ( 0.04 ) S 21:11:21.05 ( 0.07 ) CH6 105.6 53 P :36.70 (-0.54 ) S :50.50 (-0.15 ) BEV 107.6 37 S :51.00 (-0.27 ) CHF 111.1 45 P :39.00 ( 0.76 ) S :52.00 (-0.35 ) ***** 28 FEBRUARY 1986; 21:15 - LAKE SINCLAIR, GA ***** Oper Origin Lat-N Lon-W Dep MDB ERHMAX AZ ERHMIN AREA GIT 211548.2 33.300 83.440 1.0F 0.5 0.3 -67 0.2 0.2 STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ETG 8.4 97 P 21:15:50.00 ( 0.00 ) S 21:15:51.30 ( 0.06 ) CH6 107.0 52 S :16:21.10 (-0.18 ) BEV 109.2 37 S :22.10 ( 0.14 ) ***** 28 FEBRUARY 1986; 22:06 - LAKE SINCLAIR, GA ***** Oper Origin Lat-N Lon-W Dep MDB ERHMAX AZ ERHMIN AREA GIT 220654.0 33.277 83.311 1.0F 1.0 0.6 -39 0.2 0.4 STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ETG 4.0 293 P 22:06:55.10 (-0.07 ) S 22:06:56.20 ( 0.21 ) CH6 99.5 47 P :07:12.10 (-0.03 ) S :07:25.10 ( 0.33 ) BEV 104.7 31 S :26.80 ( 0.45 ) CHF 106.5 39 P :13.30 (-0.10 ) S :27.00 ( 0.08 ) LDV 112.6 31 P :14.00 (-0.50 ) S :29.00 ( 0.21 ) ***** 5 MARCH 1986; 08:10 - LAKE SINCLAIR, GA ***** Oper Origin Lat-N Lon-W Dep MDB ERHMAX AZ ERHMIN AREA GIT 081050.7 33.351 83.326 1.0F 1.5 1.1 -37 0.4 1.4 STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ETG 7.0 199 P 08:10:51.80 (-0.48 ) S 08:10:52.80 (-0.57 ) CH6 95.2 51 P :11:07.70 (-0.36 ) S :11:19.90 (-0.25 ) CHF 101.3 42 P :09.00 (-0.15 ) S :22.40 ( 0.39 ) LDV 106.5 34 P :10.00 (-0.10 ) DCT 213.6 332 S :55.70 (-0.98 ) ***** 6 MARCH 1986; 22:39 - LAKE SINCLAIR, GA ***** Oper Origin Lat-N Lon-W Dep MDB ERHMAX AZ ERHMIN AREA GIT 223924.5 33.351 83.232 1.0F 1.0 2.5 -58 1.4 10.9 STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ETG 12.9 239 P 22:39:26.00 (-0.83 ) S 22:39:27.10 (-1.44 ) BEV 93.9 29 S :51.80 ( 0.40 ) TVG 221.8 301 S :40:27.40 ( 0.54 ) ***** 13 MARCH 1986; 02:29 - LAKE SINCLAIR, GA ***** Oper Origin Lat-N Lon-W Dep MDB ERHMAX AZ ERHMIN AREA GIT 022931.0 33.356 83.394 1.0F 2.2 0.6 -49 0.4 0.7 STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) ETG 8.3 151 P 02:29:33.10 ( 0.30 ) ATL 88.2 276 P :47.80 ( 0.70 ) S 02:29:59.60 ( 1.30 ) CH6 99.7 53 P :48.30 (-0.90 ) S :30:01.80 (-0.07 ) BEV 101.6 37 P :49.70 ( 0.16 ) S :03.40 ( 0.96 ) CHF 105.1 45 P :49.80 (-0.38 ) S :04.10 ( 0.58 ) LDV 109.5 37 P :50.80 (-0.18 ) S :05.00 ( 0.11 ) IVA 117.8 30 P :53.00 ( 0.52 ) S :08.20 ( 0.77 ) TVG 208.9 303 P :30:07.90 (-1.13 ) S :35.00 (-0.53 ) Additional Data: STA OPER PHASE ARRIVAL TIME PHASE ARRIVAL TIME SRPN SRL P 02:29:57.85 S 02:30:16.25 SRPD SRL P :56.35 BBG TEIC eP 02:30:02.30 eS 02:30:24.50 ETT TEIC eP :11.60 eS :42.20 TKL TEIC eP :13.60 eS :44.20 GBTN TEIC eP :14.80 eS :47:10 TRYN TEIC eP :09.80 eS :37.00 SMTN TEIC eP :23.20 eS :31:01.40 GFM TEIC eS :30:58.60 PLVA TEIC eS :31:17.10 ***** 31 MARCH 1986; 01:54 - RICHARD B. RUSSELL DAM, GA ***** Oper Origin Lat-N Lon-W Dep MDB ERHMAX AZ ERHMIN AREA GIT 015445.4 34.024 82.611 1.0F 0.6 0.6 37 0.2 0.3 STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) BEV 13.4 303 P 01:54:47.90 ( 0.01 ) S 01:54:49.55 (-0.05 ) LDV 15.3 334 P :48.00 (-0.22 ) S :50.00 (-0.17 ) CH6 16.3 152 P :48.20 (-0.20 ) S :50.25 (-0.22 ) ***** 1 APRIL 1986; 20:16 - RICHARD B. RUSSELL DAM, SC ***** Oper Origin Lat-N Lon-W Dep MDB ERHMAX AZ ERHMIN AREA GIT 201632.8 34.415 82.680 1.0F 0.7 0.8 -9 0.2 0.4 STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) IVA 17.0 201 P 20:16:35.90 ( 0.03 ) S 20:16:38.00 (-0.13 ) LDV 29.6 181 P :37.80 (-0.06 ) S :41.80 ( 0.21 ) BEV 36.5 188 S :43.60 ( 0.11 ) CH6 59.5 166 P :42.50 (-0.19 ) ***** 9 MAY 1986; 20:26 - MONTICELLO RESERVOIR, SC ***** Oper Origin Lat-N Lon-W Dep MDL NO Gap RMS ERH ERZ Q SQD USC 202653.5 34.332 81.350 2.1 2.2 11 159 0.05 0.3 0.3 B A/C STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) 010 1.2 66 Pd 20:26:53.85 (-0.06 ) S 20:26:54.30 ( 0.04 ) 007 4.9 28 Pu :54.38 ( 0.00 ) 09A 5.3 159 Pu :54.40 (-0.04 ) S :55.20 (-0.02 ) 06A 6.5 138 Pd :54.65 ( 0.03 ) S :55.50 (-0.05 ) 005 7.3 168 Pu :54.68 (-0.06 ) S :55.80 ( 0.03 ) JSC 10.1 125 Pd :55.25 ( 0.07 ) 008 10.1 328 Pu :55.25 ( 0.06 ) ***** 19 MAY 1986; 18:15 - RICHARD B. RUSSELL DAM, SC ***** Oper Origin Lat-N Lon-W Dep MDB ERHMAX AZ ERHMIN AREA GIT 181559.1 34.081 82.630 1.0F 0.5 3.0 41 1.5 14.5 STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) BEV 9.6 275 P 18:16:01.00 ( 0.20 ) S 18:16:02.30 ( 0.23 ) CH6 22.8 156 P :01.80 (-1.40 ) S :03.90 (-2.32 ) IVA 23.7 333 P :01.90 (-1.46 ) S :04.00 (-2.50 ) ***** 11 JUNE 1986; 16:12 - LAKE KEOWEE, SC ***** Oper Origin Lat-N Lon-W Dep MDB ERHMAX AZ ERHMIN AREA GIT 161200.3 34.752 82.905 2.0F 2.2 0.4 53 0.3 0.4 STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) IVA 55.2 165 P 16:12:09.80 ( 0.12 ) S 16:12:16.60 ( 0.08 ) LDV 70.1 163 P :12.20 ( 0.12 ) S :21.50 ( 0.82 ) BEV 75.2 168 P :13.10 ( 0.18 ) S :21.90 (-0.22 ) TLT 139.4 296 P :24.00 ( 0.66 ) S :40.60 ( 0.43 ) DCT 142.2 284 P :23.24 (-0.55 ) S :41.76 ( 0.80 ) CBT 162.9 302 P :27.70 ( 0.55 ) S :47.00 ( 0.22 ) ETG 167.3 194 P :27.70 (-0.17 ) S :48.40 ( 0.37 ) RCT 172.7 292 P :29.20 ( 0.45 ) S :50.04 ( 0.48 ) RHT 184.0 281 P :29.80 (-0.78 ) S :51.92 (-0.81 ) TVG 224.4 259 P :37.00 (-0.16 ) S :13:03.30 (-0.81 ) ----- Oper Origin Lat-N Lon-W Dep MDL NO Gap RMS ERH ERZ Q SQD USC 161200.5 34.777 82.916 3.7 2.8 33 89 0.07 0.2 1.6 B A/C STA DIST (KM) AZM PHASE ARRIVAL TIME (RES) PHASE ARRIVAL TIME (RES) BG3 24.0 357 Pu 16:12:04.52 (-0.01 ) S 16:12:07.46 ( 0.06 ) LPM 24.5 336 Pu :04.60 (-0.01 ) S :07.50 (-0.04 ) IVA 58.2 164 Pu :10.00 (-0.02 ) S :16.80 (-0.06 ) RBNC 64.6 354 Pu :11.00 (-0.07 ) LDV 73.0 163 P- :12.50 ( 0.09 ) BEV 78.1 168 P- :13.30 ( 0.06 ) S :22.40 ( 0.00 ) TRYN 78.9 49 P- :13.40 ( 0.04 ) S :22.60 (-0.00 ) WSSR 80.9 313 P- :13.75 ( 0.05 ) PRM 92.3 146 Pd :15.52 (-0.01 ) S :26.30 (-0.04 ) BRBC 121.1 28 P+ :20.10 (-0.09 ) TKL 125.1 321 Pu :20.90 ( 0.06 ) RICH 127.0 4 P+ :21.00 (-0.14 ) DCT 140.8 283 Pd :23.35 ( 0.01 ) BENN 143.9 53 P+ :23.80 (-0.04 ) 007 152.8 107 Pu :25.30 ( 0.03 ) GBTN 153.7 310 P+ :25.40 (-0.02 ) S :43.70 ( 0.61 ) 001 156.7 108 Pu :25.95 ( 0.05 ) 06A 157.8 110 Pd :26.30 ( 0.21 ) S :44.25 ( 0.08 ) JSC 161.8 110 Pd :26.65 (-0.08 ) S :45.15 ( 0.66 ) 002 167.9 113 Pu :27.80 ( 0.04 ) S :45.60 ( 0.00 ) ETG 169.6 194 Pu :28.00 ( 0.01 ) S :47.50 ( 0.14 ) RCT 171.1 292 P+ :28.55 ( 0.32 ) ADDITIONAL ARRIVAL TIME DATA: JANUARY THROUGH JUNE 1986 DATE= 860131; Operator: DGS; Remarks: NED distance is 502.3 km, MD= 5.2 STATION PHASE ARRIVAL TIME PHASE ARRIVAL TIME NED iPd 16:47:52.8 BWD iPd :53.2 BVD iPd :54.2 BBD iP :56.0 iS 16:48:49.0 DATE= 860324; Operator: DGS; Remarks: suspected earthquake, MD= 2.2 STATION PHASE ARRIVAL TIME PHASE ARRIVAL TIME NED iP 05:07:38.0 iS 05:07:44.8 BWD eP :38.3 eS :45.1 BVD eS :45.5 DATE= 860129, Operator: SRL STATION PHASE ARRIVAL TIME PHASE ARRIVAL TIME SRPN P 08:17:45.75 S 08:18:11.4 SRPD P :48.4 S :13.25 DATE= 860211, Operator: SRL STATION PHASE ARRIVAL TIME PHASE ARRIVAL TIME SRPD iP 11:36:19.2 S 11:36:45.5 DATE= 860228, Operator: SRL STATION PHASE ARRIVAL TIME PHASE ARRIVAL TIME SRPD eP 04:13:22.35 S 04:13:40.42 SRPN iP :24.65 iS :44.1 DATE= 860402, Operator: SRL STATION PHASE ARRIVAL TIME PHASE ARRIVAL TIME SRPN iP 02:14:54.55 S 02:15:03.65 SRPD P :58.6 S :11.1 SRPW P :58.9 S :11.5 DATE= 860611, Operator: SRL STATION PHASE ARRIVAL TIME PHASE ARRIVAL TIME SRPN P 16:12:32.9 SRPN iP :33.7 S 16:12:56.0 APPENDICES Appendix A contains definitions of most entries found in this Bulletin. Also given is a detailed listing of agencies or groups (and their letter codes) that supply information to this Bulletin. Appendix B is an alphabetical listing of stations in the Southeastern United States Seismic Network (SEUSSN) operating during the period from January through June, 1986 (network changes are found at the end of the listing). Bulletin 11 contained a complete Station Information Appendix that gave detailed information on the operators, type of seismographs, response characteristics, recording formats, etc. Subsequent bulletins have presented only changes in the network. Figure 6 is a geographic map showing the SEUSSN. The SEUSSN monitoring area is considered to include all of Florida, Georgia, Alabama, South Carolina, North Carolina, Virginia, West Virginia (south of latitude 37.72 deg N), Maryland, and Delaware; and includes Tennessee and Kentucky - east of longitude 87 degrees West (see outlined area in Figure 6). Figures 7, 8, 9, 10 and 11 show individual networks (with station identification codes) operated by major member agencies or groups of the SEUSSN. Appendix C gives Errata and Addenda as necessary to correct/update previous Bulletins. Appendix D provides a consensus estimate of completeness for the southeastern U. S. seismicity catalog. Appendix E gives a brief description (with reset parameters) of the Virginia earthquake relocation effort from the Virginia Tech Seismological Observatory. Appendix F contains results from a study of traveltime residuals for events in southeastern Tennessee from the Georgia Institute of Technology. Appendix A. Definitions and Operator Listing Some entries in this Bulletin that might require definition are: AZM: Azimuthal angle from epicenter to station as measured from north (in deg), DEP: Focal depth estimate (in km); FXD indicates that the depth was held fixed during the epicentral determination, DIST (KM): Epicentral distance (in km) between the epicenter and a station, ERROR ELLIPSE: Semi-axes, expressed as lengths (km) and azimuths (deg), of the vertical projection of the error ellipsoid (Lahr, 1980). Horizontal axes are expressed as the semi-major axis (ERHMAX), it's azimuth (AZ), and the semi-minor axis (ERHMIN). The vertical axis (ERZ) is the largest vertical deviation of the error ellipsoid from the hypocenter. A quality measure (Q) for the ellipsoid based on the length of the largest semi-axis (ERHMAX, ERHMIN, or ERZ) may also be supplied, GAP: The largest azimuthal separation (in deg) between recording stations, HYPOELLIPSE: Computer hypocenter location program (Lahr, 1980), HYPO71: Computer hypocenter location program (Lee and Lahr, 1974), LOCA: Computer hypocenter location program developed at the Georgia Institute of Technology, MBN or mb(Lg): Body wave magnitude determination using Nuttli's formulas for the Lg phase (Nuttli, 1973), MD, MDB, MDL: Duration/coda length magnitude that approximates either the mb, ML, or an unknown magnitude scale, respectively; as of June 1986 (SEUSSN Bulletin 17), those using a duration magnitude approximating mb(Lg) were DGS, GIT, TEIC, and VTSO. Those using a duration magnitude approximating ML were USC and USGS. For more information please see SEUSSN Bulletin 17 (page 1) or contact the agency making the estimate for details on their specific procedure, MEUS: Body wave magnitude determination using Evernden's formulas for the Pn phase (Evernden, 1967), ML: Local magnitude; contact the agency or group making the estimate for details on their specific procedure, NO: Number of P, S, and S-P readings used in locating the event, PHASE: Phase descriptions for either P or S waves, or S-P times. Included under this heading may also be the descriptors; 'i' for an impulsive arrival or 'e' for an emergent arrival. Preliminary first motions may also be given for P wave polarities. These include; 'u', 'c', or '+' for a compressional first arrival, and 'd' or '-' for a dilatational first arrival. Q: Solution quality of the hypocenter (the average of the SQD quality measures; Lee and Lahr, 1974), RES: Arrival time residual (the difference between the observed and the calculated arrival time, in seconds). An "X" following the value of the arrival time residual means that the arrival time was not used to compute the location of that event, RMS: Root-mean-square of the weighted arrival time residuals (in sec), S-P: Difference between the S and P wave arrival times (in sec), SQD: Measures of the statistical quality of the solution (S), and of the distribution of stations (D) around the hypocenter (Lee and Lahr, 1974), *XXXX: Code indicating the agency or group that made the hypocentral/magnitude determination; a listing of agencies and groups that operate seismographs in the SEUSSN and/or who supply information to this BULLETIN follows. OPERATOR CODES BCC - Baptist College at Charleston, SC CPL - Carolina Power and Light Company, NC DGS - Delaware Geological Survey, DE DPC - Duke Power Company, SC DUP - E. I. DuPont de Nemours and Company, Inc., SC GIT - Georgia Institute of Technology, GA GSA - Geological Survey of Alabama, AL GSW - Georgia Southwestern College, GA NASA - National Aeronautics and Space Administration/ Goddard Space Flight Center, WV NEIC - National Earthquake Information Center, USGS, CO SCEG - South Carolina Electric and Gas Company, SC SLU - St. Louis University, MO SRL - Savannah River Labs, SC TCC - Tidewater Community College, VA TEIC - Tennessee Earthquake Information Center, TN TVA - Tennessee Valley Authority, TN UFL - University of Florida, FL UNC - University of North Carolina, NC USC - University of South Carolina, SC USGS - United States Geological Survey, CO UTM - University of Tennessee at Martin, TN VDMR - Virginia Division of Mineral Resources, VA VP - Virginia Power, VA VTSO - Virginia Tech Seismological Observatory, VA VSCC - Volunteer State Community College, TN WAL - Washington and Lee University, VA WVU - West Virginia University, WV Appendix B. Seismic Stations Operating During Report Period Stations operating in the SEUSSN during the report period are listed below. A listing of operator codes with their definition may be found at the end of Appendix A. Changes to the network (new stations, stations that have been closed, etc.) may be found at the end of the station listing. Sta. Lat. Long. Elev. Code (Deg-N) (Deg-W) (M) Locality Operator ABTN 35.886 86.109 363 Auburntown, TN TVA AMG 32.0594 84.2177 122 Americus, GA GSW ANTN 36.1717 85.2313 612 Anderson, TN TVA ATL 33.4333 84.3375 272 Atlanta, GA GIT BAV 37.2220 80.4250 622 Blacksburg, VA VTSO BBD 39.3461 75.6767 18 Blackbird, DE DGS BBG 34.874 83.811 1355 Brasstown Bald, GA TEIC BCS 32.9812 80.0717 5 Baptist College, SC BCC-USGS BENN 35.565 81.661 878 Benn Knob, NC TEIC BEV 34.0893 82.7333 158 Clark Hill Reservoir, GA GIT BFMT 35.488 84.227 329 Birch Field Mtn, TN TEIC BGKY 37.006 86.523 240 Bowling Green, KY TVA BG3 34.993 82.932 Lake Jocassee, SC DPC BHT 35.847 84.945 826 Blowhole, TN TEIC BKA 33.6338 87.9690 122 Kennedy, AL GIT-GSA BKHT 35.532 83.936 843 Bunker Hill, TN TEIC BLA 37.2113 80.4202 634 Blacksburg, VA VTSO BRBC 35.739 82.286 1976 Mt. Mitchell, NC TEIC BSPT 35.726 84.109 334 Big Springs, TN TEIC BVD 39.7749 75.4993 58 Bellevue State Park, DE DGS BV1 38.1780 79.6612 768 Burnsville, VA VP-VTSO BV2 38.1367 79.9195 610 Mountain Grove, VA VP-VTSO BV3 38.2383 79.7667 750 Lightner, VA VP-VTSO BV4 38.3572 79.8278 814 Dunsmore, WV VP-VTSO BWD 39.7994 75.5767 63 Brandywine State Park, DE DGS CBN 38.2050 77.3733 70 Corbin, VA USGS CBT 35.5393 84.4207 357 Christianburg, TN GIT CCRT 35.466 84.054 940 Cow Camps Ridge, TN TEIC CCS 32.8162 80.2553 3 Cawcaw Swamp, SC BCC-USGS CCVA 36.603 83.667 509 Cudjo Cave, VA TEIC CDG 34.6108 84.6667 333 Carters Dam, GA GIT CEH 35.8908 79.0928 152 Chapel Hill, NC UNC CHF 34.0247 82.5867 152 Calhoun Falls, SC GIT CHTN 36.5847 82.7200 558 Church Hills, TN TVA CH5 33.7332 82.3118 114 Clark Hill Reservoir, GA GIT CH6 33.8938 82.5291 130 Clark Hill Reservoir, GA GIT CNV 38.2050 77.3733 70 Corbin, VA VTSO COW 33.3842 80.7008 33 Cow Castle Creek, SC USC-USGS CPO5 35.604 85.574 570 Cumberland Plateau, TN TVA CRG 34.6589 84.5822 422 Carters Dam, GA GIT CRTN 36.200 83.841 488 Comb Ridge, TN TVA CSPT 35.761 83.824 335 Cold Spring, TN TEIC CVL 37.9813 78.4608 167 Charlottesville, VA VTSO CVV 37.9813 78.4608 167 Charlottesville, VA VDMR DCT 35.0542 84.4194 508 Ducktown, TN GIT DRC 33.100 80.392 10 Dorchester, SC BCC-USGS EP1 33.9514 82.5136 134 Clark Hill Reservoir, GA GIT ETT 35.326 84.455 588 Etowah, TN TEIC FRV 37.2030 78.3593 216 Farmville, VA VTSO GAI 29.6458 82.3393 51 Gainesville, FL UFL GBTN 35.666 84.211 326 Greenback, TN TEIC GBV 38.4321 79.8453 802 Green Bank, WV NASA GFM 36.111 81.807 1726 Grandfather Mountain, NC TEIC GHV 37.7942 78.1073 107 Goochland, VA VTSO GLT 36.362 86.498 159 Gallatin, TN TEIC-VCSS GMG 34.860 84.670 1097 Grassy Mountain, GA TEIC GTD 38.7414 75.4144 15 Georgetown, DE DGS HBF 32.9330 80.3780 10 Harts Bluff, SC USC-USGS HGA 34.2602 85.8463 384 Collinsville, AL GIT-GSA HPK 35.926 83.879 305 Knoxville, TN GIT-TVA HVA 34.0264 86.7692 195 Hanceville, AL GIT-GSA HWD 32.742 80.287 3 Hollywood, SC BCC-USGS HWV 37.5905 80.8408 521 Hinton, WV VTSO IVA 34.2721 82.7460 168 Clark Hill Reservoir, GA GIT JSC 34.2790 81.2580 120 Jenkinsville, SC USC-USGS KDD 34.7558 82.9108 Lake Keowee, SC USC LCAL 34.5225 85.6302 544 Lambert Chapel, AL TVA LDV 34.1478 82.6833 162 Clark Hill Reservoir, GA GIT LEX 37.7893 79.4417 311 Lexington, VA WAL LHS 34.4790 80.8080 120 Liberty Hill, SC USC-USGS LMTN 35.8868 83.4098 610 Little Mountain, TN TVA LPM 34.9792 83.0243 Lake Jocassee, SC DPC LRKT 35.634 83.924 780 Look Rock, TN TEIC MGS 32.8970 80.1408 3 Middleton Gardens, SC BCC-USGS MLA 32.7055 87.6937 55 Sawyerville, AL GIT-GSA MOTN 36.618 87.987 177 Model, TN TVA MRG 39.6330 79.9544 281 Morgantown, WV WVU MR01 34.3318 81.2957 131 Monticello Reservoir, SC USC MR02 34.1930 81.2302 84 Monticello Reservoir, SC USC MR03 34.3515 81.4568 125 Monticello Reservoir, SC USC MR04 34.4287 81.2165 145 Monticello Reservoir, SC USC MR05 34.2675 81.3342 145 Monticello Reservoir, SC USC MR07 34.3705 81.3250 145 Monticello Reservoir, SC USC MR08 34.4088 81.4092 145 Monticello Reservoir, SC USC MR10 34.3363 81.3375 145 Monticello Reservoir, SC USC MR6A 34.2887 81.3025 145 Monticello Reservoir, SC USC MR9A 34.2873 81.3292 145 Monticello Reservoir, SC USC MSAL 34.8467 86.6735 260 Monte Sano, AL TVA MTT 33.7513 81.6362 150 Monetta, SC USC-USGS NATN 35.865 88.240 198 Natchez Trace State Park, TN TVA NAV 37.3157 80.7935 610 Narrows, VA VTSO NA2 38.1270 77.7470 82 North Anna, VA VTSO NA5 38.0109 77.7365 76 North Anna, VA VTSO NA11 37.9867 77.6830 85 North Anna, VA VTSO NA12 37.9830 77.8795 125 North Anna, VA VTSO NED 39.7042 75.7082 46 Newark, DE DGS OCA 34.6138 86.4352 250 Owens Crossroads, AL GIT-GSA ONH 34.7700 82.9773 Lake Keowee, SC USC ONTN 36.4815 84.4433 635 Oneida, TN TVA ORT 35.9095 84.3048 370 Oak Ridge, TN TVA OSB 33.5472 80.8444 80 Orangeburg, SC USC-USGS PBF 32.8628 79.7607 -68 Porcher Bluff, SC BCC-USGS PBS 33.2790 80.2640 25 Pigeon Bay, SC USC-USGS PBV 36.9823 77.5312 49 Petersburg, VA VTSO PDTN 35.273 85.850 335 Piedmont, TN TVA PKNC 36.046 81.158 785 Pores Knob, NC TEIC PLVA 36.666 81.161 1353 Point Lookout, VA TEIC PRM 34.0833 82.3633 170 Parsons Mountain, SC USC-USGS PUV 37.0235 80.8158 652 Pulaski, VA VTSO PWLA 34.980 88.064 204 Pickwick Lake, AL TEIC PWV 37.3348 81.0488 820 Princeton, WV VTSO RBNC 35.357 82.986 1829 Richland Balsam, NC TEIC RCG 34.975 85.348 468 Rock City, GA TEIC RCT 35.3453 84.6613 265 Riceville, TN GIT RGR 32.9055 80.1938 South Carolina USC-USGS RHT 35.0781 84.8825 299 Red Hill, TN GIT RICH 35.920 82.820 967 Rich Mountain, NC TEIC RMG 34.3359 85.3160 337 Rocky Mountain Net, GA GIT RNC 35.6320 78.9803 86 Raleigh, NC CPL RNC2 35.5547 78.9897 75 Raleigh, NC CPL RNC3 35.5933 78.9045 95 Raleigh, NC CPL RNC4 35.6658 78.9045 93 Raleigh, NC CPL SGS 33.1930 80.5120 25 St George, SC USC-USGS SHTN 35.460 87.130 323 Sandy Hook, TN TVA SLTN 36.443 82.121 1280 Sullivan County, TN TVA SMG 34.3495 85.3463 314 Rocky Mountain Net, GA GIT SMT 34.9308 82.9710 Lake Jocassee, SC DPC SMTN 36.382 83.182 768 Short Mountain, TN TEIC SRPD 33.1550 81.7125 31 Savannah River Lab, SC DUP-SRL SRPN 33.3290 81.5888 95 Savannah River Lab, SC DUP-SRL SRPW 33.2023 81.5782 77 Savannah River Lab, SC DUP-SRL SSKY 36.7955 85.7925 300 Summer Shade, KY TVA SVS 32.9688 80.2487 3 Slandsville, SC BCC-USGS TDA 33.5417 86.0247 181 Talladega, AL GIT-GSA TKL 35.658 83.774 350 Tuckaleechee Caverns, TN TEIC-TVA TLT 35.3012 84.2833 512 Tellico Plains, TN GIT TRK 33.1222 79.7778 10 Turkey Creek, SC USC-USGS TRYN 35.246 82.267 915 Tryon Peak, NC TEIC TSA 33.2562 87.0675 180 Tannehill State Park, AL GIT-GSA TVG 34.3772 85.3023 323 Rocky Mountain Net, GA GIT UGRT 35.611 84.117 302 Union Grove, TN TEIC VBV 36.7853 76.1080 5 Virginia Beach, VA TCC VEW 32.7177 79.9415 -68 Oceanview, SC USC-USGS VRN 33.0375 80.9417 30 Varneville, SC USC-USGS VWV 37.4660 80.3917 963 VA-WVA Border VTSO WAS 32.908 80.263 3 West Ashley, SC BCC-USGS WMTN 35.248 84.973 378 White Oak Mountain, TN TVA WMV 37.1085 80.9705 1157 Walker Mountain, VA VTSO WSSR 35.270 83.570 1390 Wesser Bald, NC TEIC ZIN 33.1072 80.1628 10 Mt Zion Church, SC BCC-USGS CHANGES TO THE SEUSSN STATION LISTING Sta. Code Locality Operator Change BG3 Lake Jocassee, SC DPC Opened LPM Lake Jocassee, SC DPC Opened MR03 Monticello Reservoir, SC USC Closed MR04 Monticello Reservoir, SC USC Closed RGR South Carolina USC-USGS Opened SMT Lake Jocassee, SC DPC Opened TEMPORARY SEUSSN STATION LISTING Sta. Code Locality Operator Change KDD Lake Keowee, SC USC-USGS Opened ONH Lake Keowee, SC USC-USGS Opened FIGURE 6. Seismic Stations (Open Triangles) Operating in the SEUSSN from January through June 1986. The SEUSSN monitoring area is outlined. FIGURE 7. Georgia Tech - Geological Survey Of Alabama Seismic Network. FIGURE 8. South Carolina Seismic Network. FIGURE 9. Tennessee Earthquake Information Center - Southern Appalachian Regional Seismic Network. FIGURE 10. Tennessee Valley Authority Seismic Network. FIGURE 11. Virginia Tech Seismic Network. Appendix C. Errata and Addenda Figures 2 and 4 of the last SEUSSN Bulletin were reversed. Figure 2 was actually a plot of epicenters (scaled to event magnitude) for earthquakes (M ge 3.0) in the southeastern United States from July 1977 through June 1986 and Figure 4 was a similar plot of earthquakes (M ge 0.0) for the report period. MAILING LIST