EPICENTRAL LOCATIONS AND ARRIVAL TIMES MARCH 1987 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870301 1232 10.15 31-13.83 116- 2.74 15.00* 8 237 85.9 0.13 1.6 2.5 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD PBX P 12 32 23.80 S 1 34.10 ENX P 12 32 24.85 S 1 36.35 ECBX P 12 32 25.60 S 1 37.60 CBX P 12 32 30.90 S 1 47.70 2.5 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870302 652 7.47 31-35.43 115-45.91 15.00* 8 179 69.1 0.23 5.4 2.4 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CBX P 6 52 18.90 S 1 26.70 ENX P 6 52 21.90 S 1 32.60 PBX P 6 52 22.10 S 1 33.50 CBX P 6 52 25.90 S 1 39.90 2.4 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870307 1923 58.30 32-26.29 115-14.90 8.00* 8 337 5.7 0.40 7.6 2.6 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CPBX P 19 23 59.61 S 1 61.22 CBX P 19 24 19.58 S 1 34.69 2.5 2.6 ENX P 19 24 21.75 S 1 39.30 PBX P 19 24 23.16 S 1 41.70 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870308 1918 17.37 31-37.18 116- 7.29 18.00* 9 148 58.8 0.28 3.0 2.7 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX P 19 18 27.17 S 1 34.20 PBX P 19 18 27.17 S 1 34.72 SPX P 19 18 31.49 S 1 42.15 CBX P 19 18 31.67 2.7 ECBX P 19 18 34.09 S 1 46.01 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870309 4 3 26.80 32-27.70 115-18.57 8.00* 8 265 4.9 0.51 5.0 2.4 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CPBX P 4 3 27.86 S 1 29.39 2.0 2.4 ECBX P 4 3 44.95 S 1 58.07 CBX P 4 3 47.17 S 1 61.87 ENX P 4 3 50.12 S 1 65.90 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870309 428 21.95 31-59.44 116-22.05 18.00* 6 269 30.5 0.29 6.4 2.3 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX IP 4 28 27.30 S 1 31.50 PBX IP 4 28 29.40 S 1 35.80 CBX IP 4 28 29.70 S 1 35.70 2.3 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870310 1918 26.90 31-54.35 115-39.45 15.00* 8 194 75.0 0.16 1.0 2.5 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ECBX P 19 18 38.90 S 1 48.01 ENX P 19 18 42.07 S 1 53.42 CBX P 19 18 43.34 S 1 56.13 2.5 PBX P 19 18 43.34 S 1 55.50 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870312 654 26.22 32- 6.62 115-29.84 15.00* 9 108 38.6 0.48 3.1 2.4 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CPBX P 6 54 31.85 S 1 38.05 2.4 VEX P 6 54 34.65 ECBX P 6 54 39.15 S 1 49.35 CBX P 6 54 43.75 S 1 57.25 ENX P 6 54 44.15 S 1 57.95 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870313 1213 0.09 31-57.14 116-20.87 10.00* 8 150 30.9 0.14 1.2 2.6 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX P 12 13 5.42 S 1 9.23 PBX P 12 13 7.32 S 1 12.46 2.6 CBX P 12 13 8.10 S 1 14.51 2.1 2.6 ECBX P 12 13 20.77 S 1 36.27 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870314 1339 33.91 31-44.27 116-33.41 15.00* 6 281 16.0 0.23 2.4 1.7 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD PBX P 13 39 37.40 S 1 40.39 ENX P 13 39 37.60 S 1 40.40 CBX P 13 39 44.42 S 1 52.72 1.7 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870319 1037 45.60 31-49.91 116- 6.58 15.00* 8 202 59.2 0.34 1.2 2.9 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD PBX P 10 37 55.02 S 1 63.12 2.7 CBX P 10 37 57.18 S 1 66.91 2.6 2.9 CPBX IP 1 10 38 00.83 S 1 13.75 VEX IP 1 10 38 02.91 S 1 17.32 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870319 1536 11.91 31-42.46 115-56.93 18.00* 6 318 70.5 0.17 1.0 2.3 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX P 15 36 23.12 S 1 31.82 PBX P 15 36 23.81 S 1 33.21 CBX P 15 36 26.94 S 1 38.74 2.3 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870320 0 4 17.11 31-50.73 116-16.72 18.00* 6 290 36.7 0.13 8.3 2.1 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX P 0 4 23.66 S 1 28.56 PBX P 0 4 24.66 S 1 30.26 CBX P 0 4 27.17 S 1 35.57 2.1 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870325 1140 54.16 31-46.32 116-15.36 15.00* 7 170 40.6 0.14 1.4 2.8 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX P 11 41 0.94 S 1 6.24 2.6 PBX P 11 41 1.73 S 1 7.43 2.5 CBX P 11 41 5.81 S 1 14.31 2.2 2.8 SPX P 11 41 11.27 2.1 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 870328 1427 45.22 32-11.68 115-48.80 18.00* 9 165 54.0 0.21 2.3 3.0 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CPBX P 14 27 54.00 S 1 60.88 3.0 VEX P 14 27 56.80 3.1 CBX P 14 27 58.19 S 1 68.37 2.9 3.0 ENX P 14 27 59.03 S 1 69.65 3.2 PBX P 14 28 01.08 S 1 13.05