EPICENTRAL LOCATIONS AND ARRIVAL TIMES OCTOBER 1987 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871002 945 53.37 32-25.20 115-12.60 10.00* 10 0.14 3.1 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ECBX EP+ 9 46 9.80 S 1 23.00 CBX EP- 9 46 14.90 S 1 31.30 3.0 ENX EP 9 46 16.60 S 1 34.30 3.2 SPX EP+ 9 46 17.28 S 1 36.08 PBX EP- 9 46 18.40 S 1 37.90 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871002 1446 36.93 31-52.20 116-22.80 12.00* 8 0.08 2.4 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX IPC 14 46 41.60 S 1 45.20 2.5 PBX IP+ 14 46 42.90 S 1 47.60 CBX EP+ 14 46 45.80 S 1 53.00 2.4 ECBX IP- 14 46 58.40 S 1 73.94 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871005 320 5.60 31-27.60 115-29.40 13.30 11 0.34 2.5 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ECBX IP+ 3 20 11.53 2.5 SPX EP- 3 20 13.26 S 19.36 2.4 EGX EP 3 20 21.44 S 33.77 ENX IP+ 3 20 24.55 S 38.65 2.7 2.6 PBX IP 3 20 24.66 S 38.98 CBX IP- 3 20 28.35 S 45.29 2.5 2.5 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871008 1923 57.54 31-38.40 115-58.20 17.50* 10 0.39 2.5 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX EP+ 19 24 9.07 S 17.60 2.7 2.3 PBX EP- 19 24 9.15 S 17.83 SPX EP+ 19 24 10.68 S 20.13 2.3 ECBX IP+ 19 24 12.53 S 22.82 2.5 CBX EP- 19 24 13.45 S 24.90 2.0 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871009 2242 38.44 30-58.80 115-42.60 13.00* 8 0.24 2.3 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD SPX IP- 22 42 42.61 S 46.40 2.4 ECBX IP+ 22 42 51.53 S 61.67 2.2 PBX EP 22 42 58.70 S 73.55 ENX EP 22 42 59.72 S 75.70 2.5 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871010 049 37.20 31-41.40 115-55.80 19.00* 10 0.28 1.9 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX IP+ 0 49 49.11 S 1 57.91 2.0 PBX IP- 0 49 49.32 S 58.60 2.1 SPX EP 0 49 50.60 S 60.46 ECBX IP+ 0 49 51.43 S 61.74 1.9 CBX EP 0 49 52.78 S 64.24 1.8 2.0 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871010 1527 14.98 31-39.00 116- 1.80 8.00* 8 0.22 2.6 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX IP- 15 27 25.66 S 1 33.96 2.8 SPX IP- 15 27 28.40 S 1 39.00 CBX EP+ 15 27 29.95 S 1 41.30 2.4 ECBX IP+ 15 27 30.24 S 1 41.84 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871012 218 6.25 32-28.20 115-36.60 14.50* 8 0.25 2.5 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CBX IP- 2 18 21.50 S 1 34.60 2.4 ENX EP- 2 18 24.50 S 1 39.30 2.6 PBX EP 2 18 26.89 S 1 42.40 SPX EP- 2 18 30.60 S 1 49.10 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871012 1524 14.58 32-31.20 115-28.80 12.00* 8 0.17 3.0 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CBX IP+ 15 24 31.99 S 45.93 2.9 2.6 ENX EP- 15 24 35.27 S 51.05 3.1 2.8 PBX EP+ 15 24 37.12 S 54.73 3.1 SPX EP+ 15 24 39.78 S 58.93 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871014 1440 20.70 31-27.60 116-42.60 12.00* 6 0.19 2.0 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD PBX IP+ 14 40 26.10 S 1 30.30 ENX IP+ 14 40 28.40 S 1 34.20 2.0 CBX EP 14 40 35.90 S 1 47.80 2.0 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871015 741 41.72 31- 9.60 116- 3.60 12.00* 10 0.19 2.7 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD SPX IP+ 7 41 50.80 S 1 58.30 PBX EP 7 41 56.07 S 1 66.80 ENX IP+ 7 41 57.50 S 1 69.10 2.7 ECBX IP+ 7 41 57.95 S 1 70.20 CBX EP+ 7 42 3.50 S 1 20.30 2.7 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871016 2338 11.63 31-16.20 115-40.20 13.00* 10 0.30 2.6 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD SPX IP- 23 38 17.10 S 1 21.14 ECBX IP+ 23 38 21.90 S 1 29.50 PBX EP- 23 38 29.90 S 1 42.90 ENX IP+ 23 38 30.20 S 1 43.80 2.7 CBX EP 2 23 38 36.10 S 1 52.10 2.5 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871017 828 58.58 31-52.80 116-23.40 10.00* 8 0.15 2.1 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX IP- 8 29 3.10 S 1 6.50 2.2 PBX IP- 8 29 4.70 S 1 9.20 CBX EP 8 29 7.40 S 1 14.00 2.0 ECBX EP- 8 29 19.65 S 1 35.50 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871017 1418 33.12 31-33.00 115-36.60 15.00* 10 0.14 2.2 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ECBX EP- 14 18 41.90 S 1 48.70 SPX EP- 14 18 42.60 S 1 49.70 ENX IP- 14 18 49.80 S 1 62.50 2.3 PBX EP 14 18 50.20 S 1 63.20 CBX EP 14 18 53.20 S 1 69.40 2.2 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871018 955 27.36 31-51.00 115-49.20 18.00* 10 0.27 2.5 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX IP+ 9 55 40.20 S 1 50.10 2.6 ECBX IP- 9 55 40.85 S 1 50.70 PBX EP- 9 55 41.25 S 1 51.25 CBX EP+ 9 55 42.60 S 1 53.60 2.5 SPX EP 9 55 42.60 S 1 54.10 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871018 23 4 22.39 31-24.00 115-29.40 12.00* 8 0.08 2.3 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD SPX IP- 23 4 28.80 S 1 34.05 ECBX IP+ 23 4 29.40 S 1 35.00 ENX EP+ 23 4 41.60 S 1 56.60 2.3 PBX EP- 23 4 41.70 S 1 56.60 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871019 427 43.50 32- 0.60 116-21.60 11.00* 8 0.10 1.9 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX IP+ 4 27 48.80 S 1 53.10 2.0 CBX EP- 4 27 50.65 S 1 56.45 1.9 PBX EP+ 4 27 51.00 S 1 56.90 ECBX EP+ 4 28 5.00 S 1 21.50 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871020 545 44.83 31-51.00 115-49.80 15.00* 10 0.07 3.3 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX IP+ 5 45 57.40 S 67.25 3.1 3.2 ECBX IP+ 5 45 57.90 S 1 68.00 PBX IP+ 5 45 58.50 S 69.10 3.5 CBX IP+ 5 45 59.58 S 71.14 3.4 3.1 SPX IP- 5 46 0.00 S 11.60 3.2 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871020 928 40.70 31-50.40 115-49.20 15.00* 8 0.06 2.0 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX IP- 9 28 53.20 S 1 63.20 2.0 ECBX EP- 9 28 54.00 S 1 64.40 PBX EP- 9 28 54.40 S 1 64.90 CBX EP+ 9 28 55.70 S 1 67.30 2.0 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871020 2034 0.16 32-26.40 115-13.80 10.00* 12 0.36 3.1 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD EGX EP 20 34 16.85 S 30.93 ECBX EP- 20 34 17.19 S 29.98 CBX IP+ 20 34 21.45 S 38.16 3.0 3.1 ENX IP+ 20 34 22.83 S 41.15 3.2 3.4 SPX EP- 20 34 24.20 S 43.23 3.0 PBX EP 20 34 24.56 S 44.0 3.4 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871021 2223 58.59 31-43.20 115-51.00 15.00* 6 0.14 1.7 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX EP+ 22 24 11.00 S 1 20.90 1.8 ECBX EP+ 22 24 11.40 S 1 21.40 CBX EP 22 24 14.60 S 1 27.00 1.7 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871022 0 8 35.16 31-51.60 115-49.20 15.00* 10 0.10 2.4 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX IP+ 0 8 47.80 S 1 57.50 2.4 ECBX EP+ 0 8 48.70 S 1 58.90 PBX IP+ 0 8 48.95 S 1 59.65 CBX EP- 0 8 49.95 S 1 61.65 2.4 SPX IP+ 0 8 50.30 S 1 62.10 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871022 1051 31.94 31-51.60 116-24.60 9.90 6 0.20 1.9 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX IP+ 10 51 36.00 S 1 39.00 2.0 PBX IP- 10 51 37.60 S 1 42.10 CBX EP 10 51 40.80 S 1 47.70 1.8 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871022 2039 51.49 31-49.80 115-50.40 18.00* 10 0.29 2.5 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX IP+ 20 40 4.00 S 1 13.50 2.6 ECBX IP+ 20 40 4.70 S 2 14.90 PBX IP+ 20 40 5.10 S 1 14.90 CBX IP- 20 40 6.50 S 1 18.10 2.5 SPX EP- 20 40 6.70 S 2 18.20 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871026 420 17.51 31-50.40 116-16.80 14.00* 8 0.34 2.5 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX IP+ 4 20 24.23 S 28.40 2.8 2.6 PBX IP+ 4 20 25.54 S 30.91 2.5 CBX EP- 4 20 27.53 S 35.40 2.4 3.0 SPX EP 4 20 35.91 S 49.85 2.4 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871026 2358 28.27 31-33.60 115-52.20 18.00* 10 0.26 2.2 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD SPX EP- 23 58 39.80 S 1 47.80 ECBX IP+ 23 58 41.00 S 1 50.30 ENX IP+ 23 58 41.50 S 1 51.10 2.2 PBX EP- 23 58 41.60 S 1 51.80 CBX EP- 23 58 45.80 S 1 59.20 2.3 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871027 055 4.99 31-12.00 115-52.20 18.00* 12 0.21 4.3 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD PBX IP+ 0 55 14.61 S 2 22.40 ENX IP+ 0 55 16.91 S 26.40 4.3 SPX IP+ 0 55 22.40 S 2 35.40 CBX IP- 0 55 24.21 S 2 39.11 4.3 ECBX IP+ 0 55 28.70 S 46.20 CPBX IP+4 0 55 35.45 S 54.30 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871027 2 3 32.89 31-50.40 115-49.80 18.00* 8 0.29 2.4 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX IP+ 2 3 45.33 S 1 55.33 2.2 ECBX IP- 2 3 46.00 S 2 57.50 CBX IP+ 2 3 47.60 S 1 59.90 2.6 SPX EP 2 3 47.90 S 2 59.50 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871027 234 4.93 31-55.80 115-44.40 18.00* 7 0.23 2.7 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CPBX EP 2 34 15.90 ENX IP+ 2 34 19.00 S 1 29.42 2.6 CBX IP+ 2 34 20.60 S 1 31.60 2.9 SPX EP+ 2 34 20.90 S 1 33.05 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871028 1538 6.02 31- 9.00 117-36.00 17.50* 6 0.07 2.3 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CBX EP+ 15 38 20.30 S 1 31.30 2.5 ENX EP+ 15 38 20.75 S 2 32.35 2.2 PBX EP+ 15 38 20.80 S 2 32.50 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 871030 1850 8.44 31-28.80 116-39.00 12.00* 6 0.06 2.0 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD PBX IP+ 18 50 13.60 S 1 17.80 ENX EP+ 18 50 15.90 S 1 21.60 1.9 CBX EP+ 18 50 23.10 S 1 34.40 2.2