EPICENTRAL LOCATIONS AND ARRIVAL TIMES SEPTEMBER 1981 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 810904 227 59.06 33- 7.40 116-33.06 16.02 12 190 38.6 0.98 4.7 6.1 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CRB IPD 2 28 14.60 S 1 26.10 BAR P 2 28 8.50 S 15.00 IKP P 4 2 28 0.00 S 19.60 PLM P 2 28 6.10 S 11.90 CPE P 2 28 9.10 S 16.11 SYS P 2 28 10.80 S 19.30 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 810904 1619 26.92 31-20.57 115-48.40 8.00 4 188 46.4 0.38 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CRB IP- 16 19 49.20 S 64.90 SPM IPU 16 19 35.40 S 42.50 CTR IP- 16 19 45.10 S 59.60 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 810906 733 40.87 31-24.15 116-19.70 3.10 6 213 60.7 0.48 30.4 16.8 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CCS IP+ 7 33 51.05 S 2 60.69 CRB IP-1 7 33 58.70 S 1 73.20 SPM IP- 7 33 57.60 S 2 69.40 CTR IP-1 7 33 50.60 S 1 60.00 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 810906 917 26.17 33-17.85 117-12.67 6.20 5 272 33.1 0.97 31.3 10.2 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CTR IP-1 9 17 52.90 CRB IP-1 9 17 46.70 BAR P 9 17 41.10 S 2 74.00 PLM P 9 17 32.00 S 63.40 CPE P 2 9 17 31.00 SYS P 9 17 41.00 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 810915 043 23.14 32-58.14 116-20.53 8.97 4 332 68.6 0.14 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CRB IP-2 0 43 36.90 S 1 47.00 CTR IP+2 0 43 36.20 S 2 48.00 SYS P 0 43 34.70 S 1 44.00 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 810918 1151 2.11 31-50.06 115-57.35 1.27 15 235 67.1 0.88 5.2 4.6 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CTR IPU 11 51 13.00 S 1 22.70 CRB IPU 11 51 16.70 S 29.50 CCS IPD 11 51 13.13 S 23.04 BAR P 11 51 20.90 S 36.90 IKP P 11 51 17.20 S 30.10 PLM P 11 51 32.80 S 56.40 GLA P 11 51 31.80 CPE P 11 51 27.20 S 47.80 SYS P 11 51 22.00 S 38.80 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 810921 1521 55.94 33-12.22 116-12.27 16.51 10 278 63.4 0.26 2.4 1.4 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CRB IP+1 15 22 13.50 S 1 26.70 CTR IP+1 l5 22 20.00 BAR P 15 22 8.60 S 17.60 PLM P 15 22 6.70 S 15.60 CPE P 15 22 10.90 S 22.60 SYS P 15 22 11.10 S 23.50 DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG 810928 1057 41.89 33-18.25 117- 0.69 0.01 5 268 47.8 0.41 6.3 4.5 STATION PHASE TIME OF P PHASE TIME OF S MLR MLD CRB IP-9 10 57 0.00 S 15.80 CTR IP+9 10 57 0.00 S 1 21.10 CCS IP- 10 57 68.21 GLA P 10 57 73.40 CPE P 10 57 50.60 SYS P 10 57 55.40 S 67.40