EPICENTRAL LOCATIONS AND ARRIVAL TIMES OCTOBER 1981 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811004 049 22.92 32- 0.25 116-31.15 8.00* 4 244 19.2 0.03 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IPD9 0 49 0.00 S 2.80 CRB IPD9 0 49 0.00 S 5.30 CCS IP+ 0 49 26.70 S 1 29.76 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811009 1034 47.38 31-50.66 116-43.45 8.00* 5 301 6.3 0.23 53.1 28.7 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CCS IPU 10 34 48.91 S 1 50.76 CRB IP+ 10 34 57.10 S 1 63.90 ENS IPD 10 34 49.20 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811010 14 2 20.02 31-50.84 116-38.13 8.69 7 229 3.5 0.06 1.0 0.5 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IPD 14 2 21.65 CRB IPD 14 2 29.35 S 1 36.45 CCS IPD 14 2 21.63 S 23.00 RAN IPD 14 2 26.33 S 1 31.19 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811010 14 6 40.24 31-50.45 116-38.34 8.82 7 242 3.8 0.17 2.6 1.3 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD RAN IPD 14 6 46.60 S 1 51.60 CCS IPD 14 6 41.92 S 1 43.42 CRB IP+ 14 6 49.85 S 1 56.75 ENS IPD 14 6 41.75 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811010 1512 15.22 31-50.74 116-37.41 8.00* 6 222 4.6 0.12 3.1 1.7 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD RAN IPD 15 12 21.30 CCS IPD 15 12 16.72 S 1 18.23 CRB IP+ 15 12 24.75 S 1 31.75 ENS IPD 15 12 16.85 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811011 1029 24.61 31-50.52 116-37.45 8.00* 7 228 4.7 0.25 3.8 2.3 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CCS IPU 10 29 26.07 S 1 28.08 RAN IPD 10 29 30.60 S 1 35.60 ENS IPD 10 29 26.10 CRB IP- 10 29 34.30 S 41.20 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811011 1358 13.90 31-49.86 116-38.59 8.00* 7 256 4.6 0.10 1.3 0.7 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CRB IPU 13 58 23.50 S 1 30.90 RAN IPD 13 58 20.31 S 1 25.38 ENS IPD 13 58 15.70 CCS IPU 13 58 15.36 S 1 17.06 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811012 11 7 8.09 31-50.38 116-38.80 8.00* 9 252 3.5 0.21 1.8 0.9 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IP+ 11 7 9.80 CRB IP+ 11 7 17.70 S 1 24.70 CCS IP+ 11 7 9.15 S 1 10.80 RAN IPD 11 7 14.80 S 1 19.40 SAN IPU 11 7 10.99 S 1 13.04 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811012 18 2 37.41 31-45.62 116- 3.41 8.00* 7 325 58.7 0.08 9.7 19.4 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IPU 18 2 47.65 S 1 55.85 CRB IP- 18 2 51.85 S 1 62.95 CCS IP- 18 2 47.60 SAN IP+ 18 2 47.75 S 55.81 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811012 640 6.74 31-38.38 115-51.31 8.00* 12 334 48.3 0.62 5.3 2.8 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IP+ 6 40 20.20 S 1 30.70 CRB IP+ 6 40 24.50 S 1 38.00 SAN IP+ 6 40 20.25 S 1 30.75 CCS IP+ 6 40 21.09 S 1 31.77 TUL IPU 6 40 17.05 S 1 27.10 RAN IP+ 6 40 16.20 S 1 22.90 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811013 2159 13.08 31-42.25 115-55.34 8.00* 8 332 39.1 0.50 6.2 3.0 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CRB IP+ 21 59 29.80 S 1 42.70 ENS IPU 21 59 25.20 S 2 36.00 RAN IPD 21 59 20.20 S 1 24.20 TUL IP- 21 59 23.05 S 1 31.65 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811014 2323 25.91 31-50.23 116-39.16 8.00* 8 279 3.6 0.19 1.9 1.0 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IP+ 23 23 27.80 CRB IP+ 23 23 35.50 CCS IP+ 23 23 27.18 S 1 28.93 TUL IPD 23 23 28.94 S 1 31.59 SAN IPU 23 23 28.50 S 1 30.80 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811015 1224 53.37 31-48.14 116-45.17 8.00* 8 252 11.2 0.44 8.2 8.4 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IPU 12 24 56.00 S 1 56.80 CCS IPD 12 24 56.33 TUL IPU 12 24 59.59 SAN IP- 12 24 57.25 S 1 59.55 LGR IPU 12 24 56.65 S 1 58.70 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811015 1526 27.85 33- 9.91 116-57.57 0.47 10 346 98.4 0.44 8.5 2.8 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IP+ 15 26 51.40 S 1 70.70 CRB IP- 15 26 44.30 S 1 58.20 TUL IP- 15 26 52.08 S 1 70.66 RAN IP- 15 26 52.60 S 1 72.20 SAN IP+ 15 26 50.05 S 1 68.00 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811015 1734 26.33 31-48.49 116-40.53 8.00* 6 205 8.4 0.20 2.0 5.9 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IPD 17 34 28.50 LGR IP- 17 34 29.07 SAN IP+ 17 34 29.60 S 1 32.10 TUL IPD 17 34 20.39 S 1 32.70 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811015 1742 41.90 31-48.99 116-30.13 8.00* 7 151 17.0 0.34 1.5 6.8 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IPD 17 42 44.70 RAN IP- 17 42 46.51 S 1 49.27 SAN IP+ 17 42 46.30 S 1 48.81 LGR IP+ 17 42 45.73 S 1 48.09 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811015 2122 51.90 31-38.01 115-39.81 8.00* 10 338 71.4 0.23 15.9 10.0 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IP- 21 23 8.30 S 1 21.20 CRB IP- 21 23 11.90 S 1 27.10 SAN IP- 21 23 8.25 S 1 20.46 AGC IP- 21 23 4.10 S 1 13.90 TUL IP+ 21 23 6.33 S 1 17.32 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811015 2339 58.07 32-30.41 116- 6.64 8.00* 5 321 56.2 0.17 9.8 18.6 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IPD 23 40 13.00 CRB IPD 23 40 8.00 S 1 15.90 TUL IP+ 23 40 10.90 S 1 21.20 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811016 337 25.50 31-48.37 116-29.84 36.07 8 155 10.4 0.42 7.5 6.7 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS EPD 3 37 31.90 CRB EPD 3 37 35.50 TUL EP- 3 37 31.65 CCS EP+ 3 37 32.25 SAN EPD 3 37 32.20 LGR EP+ 3 37 31.25 AGC EP- 3 37 31.10 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811016 452 18.35 31-47.99 116-39.62 8.00* 8 191 7.6 0.17 1.2 3.0 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IPD 4 52 20.60 TUL IPD 4 52 21.95 S 1 24.70 CCS IP+ 4 52 20.35 SAN IP+ 4 52 21.85 S 1 23.70 LGR IPU 4 52 20.90 S 1 23.20 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811016 452 31.69 31-47.67 116-38.70 8.00* 10 175 8.4 0.18 1.0 1.8 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IPD 4 52 34.20 AGC IP+ 4 52 36.50 S 1 40.20 LGR IPU 4 52 34.15 S 1 36.30 TUL IPD 4 52 35.30 CCS IPU 4 52 33.60 S 1 35.30 SAN IPU 4 52 35.15 S 1 37.07 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811016 810 11.46 31-47.89 116-38.29 8.00* 7 169 9.7 0.20 1.5 3.8 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IP- 8 10 13.90 TUL IP- 8 10 14.98 S 1 17.28 SAN IP+ 8 10 15.00 S 1 17.25 LGR IP+ 8 10 13.90 S 1 16.15 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811016 1133 29.67 31-47.87 116-40.43 3.20 6 204 9.5 0.01 0.1 0.6 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IP+ 11 33 31.40 TUL IP- 11 33 33.20 S 1 35.95 SAN IP+ 11 33 32.95 LGR IP+ 11 33 32.05 S 1 33.95 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811016 1755 42.31 31-39.25 116- 6.40 8.00* 7 345 33.3 0.24 4.6 1.3 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IP- 17 55 52.70 S 1 60.50 AGC IP+ 17 55 48.29 S 1 53.20 SAN IP+ 17 55 52.63 S 1 60.69 TUL IP- 17 55 50.59 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811016 22 0 8.62 31-55.11 116-45.64 8.00* 8 258 9.9 0.37 3.1 3.1 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IP+ 22 2 10.90 S 1 12.20 CRB IP+ 22 2 17.20 S 1 22.95 AGC IP- 22 2 15.25 S 1 21.50 SAN IPD 22 2 10.79 S 1 12.90 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811016 2317 20.33 32- 4.53 116-59.50 8.00* 10 281 35.1 0.15 1.2 0.9 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD SAN IPD 23 17 26.51 S 1 31.42 ENS IP+ 23 17 27.20 S 1 32.50 CRB IP- 23 17 28.00 S 1 33.50 TUL IP+ 23 17 29.07 ZOR IP+ 23 17 31.27 AGC IP+ 23 17 31.10 S 1 39.88 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811017 140 11.42 31-46.38 116-40.76 8.00* 11 135 5.6 0.56 2.6 4.8 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IPD 1 40 14.70 SAN IP+ 1 40 15.65 S 1 18.35 LGR IPU 1 40 14.63 S 1 15.83 AGC IPD 1 40 16.95 S 1 20.05 TUL IPD 1 40 15.73 S 1 18.48 PTB IP+ 1 40 12.30 S 1 13.85 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811017 459 48.89 31-39.06 115-48.63 8.00* 12 320 57.7 0.32 17.6 35.1 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IP+ 4 59 63.30 S 1 74.80 CRB IP+ 4 59 67.80 S 1 81.50 TUL IP+ 4 59 60.90 S 1 70.27 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811017 6 0 4.99 31-37.80 115-52.06 8.00* 8 338 53.8 0.08 18.7 37.3 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IPU 6 0 18.80 TUL IP+ 6 0 16.43 S 1 25.49 LGR IP- 6 0 17.28 AGC IPD 6 0 14.35 S 1 21.77 SAN IP 6 0 18.88 S 1 29.67 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811017 1127 14.13 31-46.59 116-42.28 8.00* 10 168 4.3 0.39 2.1 3.1 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENS IP- 11 27 17.00 SAN IP+ 11 21 18.40 AGC IP- 11 27 19.65 LGR IP+ 11 27 17.41 TUL IPD 11 27 18.58 S 1 21.29 PTB IPU 11 27 15.20 S 1 16.60 ZOR IP+ 11 27 18.72 S 1 21.80 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 811017 1947 23.19 33-12.44 116-20.05 8.00* 10 344 103.8 0.41 11.5 5.0 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CRB IP+ 19 47 40.30 S 1 54.10 CCS IP- 19 47 46.60 S 1 66.65 PTB IP- 19 47 48.50 S 1 69.10 TUL IP- 19 47 46.10 S 1 63.55 AGC IP- 19 47 46.70 S 1 64.25