EPICENTRAL LOCATIONS AND ARRIVAL TIMES SEPTEMBER 1987 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870903 2252 31.94 31-51.00 115-46.80 18.00* 6 0.23 2.5 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX IPC 22 52 45.13 S 1 55.33 2.5 PBX IPC 22 52 46.23 S 1 57.73 SPX EP- 22 52 47.06 S 1 58.16 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870906 2314 59.51 31-46.80 115-56.40 18.00* 8 0.17 2.4 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX IP+ 23 15 10.78 S 1 19.08 2.2 PBX IPD 23 15 11.45 S 1 20.95 CBX IPD 23 15 13.85 S 1 24.95 2.6 SPX EP 23 15 14.35 S 1 25.35 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870913 1114 10.28 32-42.00 116-13.20 16.00* 6 0.10 2.9 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CBX IPC 11 14 20.00 S 1 27.50 3.1 ENX IP- 11 14 26.10 S 1 38.30 2.7 PBX IP+ 11 14 28.20 S 1 42.50 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870913 1136 1.00 32-36.00 116-10.80 16.00* 6 0.08 2.9 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CBX IPC 11 36 9.90 S 1 17.10 3.0 ENX IP+ 11 36 15.50 S 1 26.70 2.8 PBX IP+ 11 36 18.00 S 1 31.00 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870914 948 13.30 32-17.40 116-37.80 12.00* 6 0.12 2.2 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CBX IPC 9 48 15.40 S 1 17.00 2.5 ENX EP 9 48 20.60 S 1 26.20 2.0 PBX EP 1 9 48 23.30 S 1 30.80 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870916 1321 59.72 31-33.60 115-47.40 15.00* 8 0.11 2.3 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD SPX IP+ 13 22 10.20 S 1 18.40 ENX EP+ 13 22 14.10 S 1 24.90 2.2 PBX EP- 13 22 14.20 S 1 25.10 CBX IP- 13 22 17.90 S 1 32.20 2.4 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870916 1731 23.23 32-43.80 116-16.20 15.00* 6 0.13 2.4 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CBX IPC 17 31 32.56 S 1 40.26 2.5 ENX EP+ 17 31 39.14 S 1 51.24 2.3 PBX EP+ 17 31 41.63 S 1 55.63 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870919 1025 31.26 32-34.80 116-12.60 17.00* 6 0.20 2.7 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CBX IPC 10 25 39.65 S 1 46.85 2.9 ENX EP+ 10 25 45.55 S 1 56.25 2.6 PBX EP 10 25 47.95 S 1 60.45 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870927 331 32.19 32-25.80 115-36.00 13.30 10 0.20 2.9 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CBX IPD 3 31 35.15 S 1 37.95 2.9 ENX IPD 3 31 41.75 S 1 49.25 2.9 PBX IPD 3 31 44.45 S 1 53.95 CPBX EP+ 3 31 51.40 S 1 65.67 SPX EP- 3 32 0.73 S 1 22.75 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870927 9 3 49.11 31-40.20 115-56.40 12.00* 14 0.21 2.9 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX IPD 9 4 0.75 S 1 9.80 3.0 PBX IP+ 9 4 1.20 S 1 10.70 SPX IPD 9 4 2.00 S 1 12.27 3.0 ECBX IPD 9 4 3.07 S 13.14 3.1 CBX EP+ 9 4 4.51 S 1 16.55 2.6 2.9 CPBX IP+ 9 4 5.30 S 1 17.38 2.5 EGX EP 9 4 11.29 S 27.79 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870928 16 8 28.76 31-50.40 116-23.40 13.00* 10 0.39 2.4 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX IPC 16 8 33.45 S 1 37.45 2.3 PBX IP+ 16 8 34.70 S 1 39.40 CBX EP+ 16 8 37.75 S 1 45.45 2.3 2.1 SPX EP- 16 8 48.16 S 62.66 ECBX EP 1 16 8 50.28 S 65.71 2.5 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870929 329 1.10 31-29.40 115-26.40 12.00* 10 0.15 2.5 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ECBX IPC 3 29 7.45 S 1 11.95 SPX EP 3 29 9.25 S 1 15.55 ENX EP+ 3 29 20.33 S 1 35.15 2.5 PBX EP- 3 29 20.71 S 1 35.61 CBX EP- 3 29 24.35 S 1 41.61 2.5 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870930 729 33.80 32- 3.00 115-44.40 18.00* 12 0.30 3.2 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CPBX EP+ 7 29 43.08 S 1 51.05 2.6 ECBX EP+ 7 29 47.91 S 59.36 3.3 ENX IP- 7 29 48.22 S 58.97 3.0 CBX IP- 7 29 48.22 S 59.20 2.9 2.9 PBX EP+ 7 29 49.83 S 61.74 3.4 SPX EP+ 7 29 52.05 S 1 65.66 3.1 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870930 1342 53.27 31-39.00 115-57.60 16.50* 8 0.20 2.2 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX IP+ 13 43 4.93 S 1 13.23 2.3 PBX IP+ 13 43 5.15 S 1 14.05 SPX P 13 43 6.45 S 1 16.25 CBX IP+ 13 43 8.85 S 1 20.80 2.2 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870930 1925 44.12 31-55.80 114-49.80 6.00* 8 0.11 3.4 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD SPX EP+ 19 26 2.05 S 1 16.25 ENX IPD 19 26 11.05 S 1 31.75 3.5 3.1 CBX IPD 19 26 11.75 S 1 33.15 3.4 3.0 PBX IPD 19 26 12.20 S 1 33.60 3.3 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870930 2013 33.58 31-30.60 115-33.00 6.00* 8 0.11 3.4 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ECBX IP+ 20 13 41.50 S 47.42 1.8 SPX IP- 20 13 42.13 S 48.94 2.0 ENX EP 1 20 13 51.36 S 64.27 2.0 CBX EP- 20 13 55.66 S 71.53 1.8