EPICENTRAL LOCATIONS AND ARRIVAL TIMES APRIL 1989 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890404 1156 4.66 31-48.00 115-49.80 3.00* 14 0.20 2.5 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD RDX IPD 11 56 7.40 S 4 9.76 EMX EP+ 11 56 14.15 S 1 22.02 ENX IPC 11 56 17.22 S 1 27.14 2.7 2.7 ECBX EP 1 11 56 17.99 S 1 28.04 2.5 PBX IP+ 11 56 18.18 S 1 28.68 2.5 SPX EP- 11 56 19.20 S 1 30.41 2.5 CBX IPD 11 56 20.29 S 1 32.07 2.9 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890404 1830 8.22 31-55.80 116-18.60 3.00* 10 0.13 1.9 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX EP+ 18 30 13.99 S 1 18.65 2.0 1.7 RDX IPC 18 30 13.99 S 1 18.70 PBX EP+ 18 30 15.53 S 1 21.62 CBX IPD 18 30 17.12 S 1 23.88 1.8 EMX EP- 18 30 24.54 S 1 36.48 1.8 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890404 2152 26.31 31-43.80 116-31.20 3.00* 10 0.16 1.9 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD PBX IPC 21 52 29.76 S 1 32.83 ENX IPC 21 52 30.19 S 1 33.47 2.0 2.1 RDX IPC 21 52 35.67 S 1 42.97 CBX IPC 21 52 37.13 S 1 45.35 1.8 2.1 EMX EP 1 21 52 46.27 S 1 61.02 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890406 527 10.71 31-51.60 115-49.80 2.60 12 0.18 2.6 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD RDX IPC 5 27 12.70 S 1 15.40 ECBX EP+4 5 27 19.20 S 4 26.40 ENX IPC 5 27 23.30 S 1 33.30 2.6 PBX IPC 5 27 24.50 S 1 35.10 CBX IPC 5 27 25.30 S 1 37.30 2.7 SPX EP-1 5 27 26.00 S 1 38.20 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890407 557 40.26 32-00.00 116-15.60 3.00* 10 0.15 1.9 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD RDX EP- 5 57 45.31 S 1 49.37 1.9 ENX EP+ 5 57 47.04 S 1 52.45 1.9 2.1 CBX IPD 5 57 48.71 S 1 55.43 PBX EP+ 5 57 49.09 S 1 55.52 EMX EP+ 5 57 55.82 S 1 67.45 2.0 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890407 20 7 28.00 33-33.00 118- 1.20 5.00* 16 4.5 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CBX EPN 20 7 58.55 S 1 81.22 ENX EPN- 20 8 3.04 S 1 31.72 4.5 PBX EPN 20 8 3.80 S 1 35.52 RDX EPN 20 8 9.64 S 1 42.20 EMX EPN 20 8 16.02 S 1 55.50 LMX EPN 20 8 18.71 S 1 64.30 SPX EPN 20 8 22.71 S 1 72.70 ECBX EPN 20 8 23.01 S 1 68.70 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890409 043 49.62 31-54.60 116-14.40 3.00* 6 0.11 1.8 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX EP+ 0 43 56.41 S 1 61.91 1.9 PBX EP+ 0 43 57.90 S 1 64.00 CBX EP- 0 43 59.40 S 1 66.90 1.8 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890412 840 41.91 31-50.40 115-46.80 15.00* 14 0.14 3.7 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD EMX IPC 8 40 50.32 S 1 57.13 ECBX IPC 8 40 54.61 S 1 64.52 ENX IPC 8 40 55.14 S 1 65.44 3.6 3.4 LMX IPC 8 40 55.21 S 1 65.30 PBX IPC 8 40 56.14 S 1 67.44 3.8 SPX IPD 8 40 56.76 S 1 68.05 3.6 CBX IPC 8 40 57.49 S 1 69.59 3.9 3.5 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890414 311 57.42 33-15.00 116-31.80 15.00* 10 0.17 2.5 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CBX EP- 3 12 13.64 S 1 26.70 2.5 2.5 ENX EP 1 3 12 20.66 S 1 39.04 2.6 RDX IPC 3 12 21.48 S 1 40.02 PBX EP 1 3 12 23.40 S 1 43.25 EMX EP 1 3 12 25.52 S 1 47.03 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890414 613 55.40 31-53.40 115-50.40 1.20 16 0.21 1.6 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD EMX IPD 6 13 56.30 S 1 58.90 2.2 ENX EP-1 6 13 67.97 S 1 77.95 2.2 PBX EP- 6 13 69.35 S 1 80.26 ECBX EP- 6 13 69.66 S 1 80.36 CBX IP- 6 13 70.00 S 1 82.90 2.4 2.2 LMX EP+4 6 13 70.37 S 4 82.20 SPX IPC 6 13 71.50 S 1 83.94 RDX IP+ 6 13 66.60 S 1 74.70 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890414 21 6 42.73 31-44.40 116-30.60 3.00* 8 0.13 1.6 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD PBX IPC 21 6 46.17 S 1 49.34 ENX IPC 21 6 46.48 S 1 49.70 1.6 RDX EP 1 21 6 52.28 S 1 59.36 CBX IPC 21 6 53.44 S 1 61.48 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890418 8 9 27.50 32-51.60 115-42.60 15.00* 8 0.22 2.4 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD RDX EP 1 8 9 43.94 S 1 56.75 CBX IPC 8 9 44.25 S 1 57.31 2.7 2.3 ENX EP 1 8 9 49.32 S 1 66.48 2.5 PBX EP+ 8 9 51.70 S 1 70.50 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890420 11 5 5.60 31-52.20 115-49.20 3.00* 11 0.24 2.0 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD EMX EP 1 11 5 14.23 S 1 22.32 ENX EP 1 11 5 18.32 S 1 28.36 ECBX EP 1 11 5 19.19 S 1 29.64 LMX EP 1 11 5 19.45 PBX EP 1 11 5 19.60 S 1 30.46 CBX IPC 11 5 20.32 S 1 32.00 2.0 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890421 1614 35.37 31-20.40 115-19.20 9.00 12 0.26 2.5 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ECBX IPC 16 14 40.30 S 1 44.50 SPX IPC 16 14 41.00 S 1 46.00 RDX EP 16 14 49.00 S 1 60.00 ENX EP- 16 14 57.80 S 1 74.55 2.5 PBX EP- 16 14 58.00 S 1 74.65 CBX IP+2 16 15 1.00 S 2 20.96 2.6 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890422 125 22.54 31-55.20 116- 3.60 3.00* 14 0.28 2.4 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD ENX IPD 1 25 31.68 S 1 39.04 2.6 2.2 PBX IPD 1 25 33.28 S 1 42.00 CBX IP- 1 25 33.91 S 1 42.82 2.5 2.1 EMX EP 1 25 34.50 S 1 44.72 2.1 CPBX EP 1 1 25 37.34 S 4 49.36 ECBX EP- 1 25 40.09 S 1 52.91 SPX EP- 1 25 40.33 S 1 53.99 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890425 654 13.48 32- 3.60 115-51.00 3.30 14 0.28 2.0 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD RDX IPC 6 54 16.15 S 1 18.98 EMX EP- 6 54 21.89 S 4 28.60 2.1 CPBX EP 1 6 54 23.68 S 1 32.29 ENX IPC 6 54 26.45 S 1 36.59 2.2 CBX IP- 6 54 26.45 S 1 36.49 2.1 1.8 PBX EP 6 54 28.19 S 1 38.70 ECBX EP 1 6 54 29.67 S 1 41.25 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890425 1429 0.40 16-48.60 99-22.80 20.00* 8 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD SPX EP 14 33 40.50 ECBX EP 14 33 41.00 LMX EP 14 33 43.80 EMX EP 14 33 45.77 CPBX EP 14 33 51.20 PBX EP 14 33 53.50 ENX EP 14 33 54.00 CBX EP 14 33 58.50 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890426 839 7.18 32- 7.20 115-48.60 3.00* 13 0.27 2.1 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD RDX IP+ 8 39 11.12 S 1 14.42 EMX EP-4 8 39 14.83 S 4 23.05 2.3 CPBX EP+ 8 39 16.83 S 1 24.13 LMX EP 1 8 39 19.98 CBX IP- 8 39 20.29 S 1 30.43 2.0 ENX EP- 8 39 21.06 S 1 31.66 2.2 PBX EP- 8 39 22.90 S 1 34.65 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890426 2112 17.68 31-54.00 116-15.60 3.00* 14 0.19 2.3 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD RDX IP+ 21 12 22.84 S 1 27.17 ENX EP+ 21 12 24.28 S 1 29.58 2.4 PBX EP+ 21 12 25.67 S 1 31.80 CBX IPD 21 12 27.29 S 1 34.81 2.2 EMX EP+ 21 12 33.25 S 1 44.92 CPBX EP 4 21 12 35.60 S 4 49.62 SPX EP 1 21 12 36.38 S 1 51.36 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890428 857 17.39 31-53.40 116- 9.60 3.00* 18 0.11 2.0 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD RDX IPC 8 57 20.91 S 1 24.11 ENX EP+ 8 57 25.19 S 1 31.53 2.1 PBX IP- 8 57 26.41 S 1 33.84 CBX EP- 8 57 28.14 S 1 36.65 2.1 EMX EP+ 8 57 31.28 S 1 42.20 2.0 CPBX EP 4 8 57 33.90 S 4 46.96 SPX EP 1 8 57 35.34 S 4 47.76 ECBX EP 1 8 57 35.52 S 1 49.75 LMX EP 2 8 57 35.54 S 4 49.27 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890429 021 14.06 31-52.20 116-14.40 15.00 16 0.22 2.3 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD RDX IPC 0 21 18.99 S 1 22.91 2.2 ENX IPC 0 21 20.83 S 1 26.28 2.6 2.3 PBX IPC 0 21 22.24 S 1 28.13 2.2 CBX EP+ 0 21 24.29 S 1 31.91 2.4 2.2 EMX EP+2 0 21 29.66 S 1 40.94 2.4 CPBX EP-2 0 21 31.34 S 1 44.48 SPX EP 1 0 21 32.55 S 1 46.38 2.2 ECBX EP 2 0 21 32.92 S 1 47.51 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890430 252 0.68 32-33.00 115-16.80 9.40 18 0.22 3.1 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD D09 IPD 2 52 3.62 S 1 6.52 QKP IPD 2 52 4.80 S 1 9.18 LMX IPD 2 52 9.92 S 4 18.22 EMX IPD 2 52 10.38 S 1 18.33 3.2 RDX EP+ 2 52 15.45 S 1 26.40 2.8 ECBX EP 1 2 52 19.83 S 4 34.69 CBX IP- 2 52 21.33 S 1 37.23 3.2 2.9 ENX EP 2 2 52 24.20 S 1 42.07 3.0 PBX EP 2 2 52 25.82 S 1 45.41 3.1 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 890430 717 5.73 32-33.00 115-16.20 9.30 15 0.25 2.9 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD D09 IP+ 7 17 9.15 QKP IPD 7 17 9.85 S 1 14.05 LMX EP+ 7 17 15.20 S 1 22.10 EMX IPD 7 17 15.50 S 1 23.80 RDX EP+ 7 17 20.50 S 1 31.90 CBX IPD 7 17 26.50 S 4 42.00 2.9 ENX EP 7 17 29.00 S 1 47.50 3.0 PBX EP- 7 17 31.00 S 1 51.00