Data Report
Bulletin / 1981
Contributed by ECX
EPICENTRAL LOCATIONS AND ARRIVAL TIMES
JANUARY 1981
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810118 2323 47.76 32-24.45 115-07.14 18.91 04 285 05.3 0.01
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
QKP IPD 23 23 52.71 S 56.59
VER IPU 23 23 51.74
SPM IPD 23 23 10.50
EPICENTRAL LOCATIONS AND ARRIVAL TIMES
MARCH 1981
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810310 0931 05.00 31-57.03 116-13.62 08.00 05 213 42.0 0.41 8.8
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IP 9 9 31 0.00 S 7.80
ENS IPD9 9 31 0.00 S 5.60
GLA IP 9 31 33.30 S 54.10
BAR IP 9 31 21.40 S 33.30
PLM IP 9 31 33.50 S 53.30
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810311 2308 37.00 31-52.93 116-00.00 08.00 03 306 62.8
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IP 23 8 50.90 S 58.70
ENS IPD 23 8 48.40 S 54.70
BAR IP 23 8 55.60 S 66.90
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810316 1613 55.00 31-54.03 116-16.20 08.00 03 220 37.4
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IPD 16 14 5.74 S 13.29
ENS IP- 16 14 2.17 S 7.38
GLA IP 16 14 23.30 S 44.10
BAR IP 16 14 11.00 S 22.60
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810321 2317 30.00 31-54.59 116-10.80 08.00 03 262 45.8 0.01
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IPU 23 17 41.00 S 48.10
ENS IP 2 23 17 38.15 S 44.12
IKP IP 23 17 44.00 S 53.70
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810322 2128 57.39 31-19.75 116-14.22 08.00 03 213 73.6 0.20
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IPD 21 29 16.74 S 38.35
ENS IPD 21 29 9.71 S 26.59
SPM IP 9 21 29 0.00 S 10.50
EPICENTRAL LOCATIONS AND ARRIVAL TIMES
APRIL 1981
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810408 0140 10.84 31-29.59 115-31.69 8.00 10 300 91.9 1.54 11.0 10.0
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
QKP IPD 1 40 24.33 S 37.47
BAR P 1 40 36.00 S 57.00
IKP P 1 40 32.00 S 50.00
GLA P 1 40 40.50 S 63.00
PLM P 1 40 47.40 S 77.00
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810411 1611 10.67 31-30.41 115-26.58 8.00* 6 176 51.2 1.55 24.2 21.9
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
QKP IPD 16 11 22.80 S 39.10
BAR P 16 11 38.40 S 57.40
IKP P 16 11 34.10 S 49.00
EPICENTRAL LOCATIONS AND ARRIVAL TIMES
MAY 1981
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810502 2150 20.60 32-55.86 116-16.62 11.50 6 3.3
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
SJQ IPD 21 50 42.41 S 58.41
SPA IPD 21 50 45.79 S 63.95
CAT IPD 21 50 45.40 S 63.22
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810504 0551 44.60 31-26.65 116-21.16 8.00 7 289 51.6 0.32 16.1 29.7
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
SPM IP 9 5 51 0.00 S 13.50
CAT IPU 5 51 54.19
VIN IPU 5 51 54.85 S 62.24
SJQ IPU 5 51 54.05 S 60.88
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810504 1624 1.79 31-23.60 116-34.91 5.10 8 305 72.1 0.71 5.8 10.6
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
SPM IP 9 16 24 0.00 S 16.00
CAT IP+ 16 24 15.30 S 25.19
VIN IPD 16 24 15.51 S 2 25.31
SJQ IPU 16 24 15.11 S 24.60
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810506 0756 52.66 32-15.22 115-22.26 10.99 18 154 77.6 0.55 4.7 6.9
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
SPM IP 9 7 57 0.00 S 15.80
IKP P 9 7 57 0.00 S 10.00
BAR P 9 7 57 0.00 S 16.50
PLM P 9 7 57 0.00 S 2 23.00
GLA P 9 7 57 0.00 S 12.00
VIN IP+ 7 57 6.58 S 2 16.60
CAT IP+ 7 57 6.13 S 16.13
SJQ IP+ 7 57 6.09 S 15.92
SPA IP- 7 57 8.17 S 19.91
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810506 1025 14.41 32-18.74 115-14.95 05.96 10 2.9
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
SPM IPU9 10 25 0.00 S 18.40
VIN EP+ 10 25 32.30 S 45.17
CAT IPD 10 25 32.08 S 2 44.12
SJQ IPU 10 25 31.63 S 43.35
SPA IPD 10 25 34.06 S 47.70
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810507 1458 26.53 32-27.73 115-26.50 5.96 14 2.5
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
SPM IP 9 14 58 0.00 S 19.60
IKP P 9 14 58 0.00 S 7.50
BAR P 9 14 58 0.00 S 13.50
GLA P 9 14 58 0.00 S 10.00
VIN IPD 14 58 43.79 S 56.13
CAT IPD 14 58 44.06 S 3 55.37
SJQ IPU 14 58 42.02 S 2 51.90
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810507 1645 49.04 30-49.74 116-13.75 8.00 8 302 76.9 0.35 22.3 40.8
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
SPM IP+9 16 46 0.00 S 10.00
VIN IP- 16 46 4.52 S 16.86
CAT IPD 16 46 6.20 S 2 19.17
SJQ IP 16 46 6.28 S 2 20.35
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810507 1702 56.61 32-13.23 115-17.78 5.78 9 2.2
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
SPM IP 9 17 3 0.00 S 17.50
IKP P 9 17 3 0.00 S 10.00
BAR P 9 17 3 0.00 S 16.00
PLM P 9 17 3 0.00 S 1 23.00
GLA P 9 17 3 0.00 S 2 11.00
VIN IPD 17 3 10.95 S 20.13
CAT IPD 17 3 11.54 S 21.27
SJQ IPU 17 3 9.17 S 20.15
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810510 2111 57.40 30-47.22 116- 5.47 3.89 18 281 66.4 0.44 12.6 15.7
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
SPM IP-9 21 12 0.00 S 9.00
IKP P 9 21 12 0.00 S 25.00
BAR P 9 21 12 0.00 S 1 25.00
PLM P 9 21 12 0.00 S 1 35.00
GLA P 9 21 12 0.00 S 2 37.00
CAT IPD9 21 12 0.00 S 12.85
SPA IPD9 21 12 0.00 S 11.30
SJQ EP-9 21 12 0.00 S 14.00
VIN IP 9 21 12 0.00 S 13.00
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810511 0250 42.74 30-49.01 116-10.87 8.75 7 302 73.2 0.08
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
SPM IPU 2 50 55.12
CAT P 9 2 50 0.00 S 12.80
SPA IPU9 2 50 0.00 S 11.25
SJQ IP 9 2 50 0.00 S 13.75
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810511 1436 45.89 30-52.19 116-20.69 8.00 8 303 85.2 0.08 9.5 17.8
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
SPM IPU 14 37 0.37 S 11.77
CAT IPU9 14 37 0.00 S 12.95
VIN IPU9 14 37 0.00 S 12.40
SPA IPD9 14 37 0.00 S 11.20
SQJ P 9 14 37 0.00 S 13.85
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810513 0534 38.85 32- 4.28 116-25.97 10.35 11 115 30.3 0.74 3.7 6.1 3.2
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
SPM IPU 5 34 61.62 S 77.89
ENS IPU 5 34 44.30
IKP P 5 34 51.30 S 59.80
BAR P 5 34 50.80 S 58.80
PLM P 5 34 62.80 S 80.80
GLA P 5 34 67.30 S 87.80
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810515 1351 6.09 31-56.62 114-59.70 1.92 16 197 83.2 1.35 6.9 18.2
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
SPM IPU 13 51 24.16 S 39.24
IKP P 1 13 51 28.80 S 42.80
BAR P 13 51 35.00 S 53.80
PLM P 13 51 45.30 S 72.30
GLA P 13 51 22.00 S 44.30
SJQ EP+ 13 51 21.15 S 34.73
VIN EP+ 13 51 20.65 S 32.27
CAT EP+ 13 51 21.15 S 32.45
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810524 0554 3.32 31-25.98 115-33.35 11.56 6 190 43.9 0.83 5.5 4.8
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
SPM IPD9 5 54 0.00 S 6.10
IKP P 5 54 25.70 S 41.50
BAR P 5 54 30.60 S 49.50
EPICENTRAL LOCATIONS AND ARRIVAL TIMES
JUNE 1981
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810606 1143 6.87 31-26.16 115-32.07 8.00* 6 193 43.9 0.24 13.2 9.9
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
SPM IP 9 11 43 31.00 S 37.00
IKP P 1 11 43 30.00 S 1 47.00
BAR P 1 11 43 33.00 S 1 54.00
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810615 0946 30.81 31-59.52 117- 6.73 7.73 7 261 44.6 0.44 6.7 5.0
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CCS IPU 9 46 38.39
IKP P 9 46 50.80 S 65.80
BAR P 9 46 45.80 S 56.80
PLM P 9 46 54.80 S 71.80
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810620 0639 18.12 32- 1.09 116- 0.94 8.00* 6 216 63.5 1.50
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CCS IPU 6 39 28.06 S 38.75
CRB IPU9 6 39 29.00 S 36.50
SPM IP-9 6 39 30.00 S 43.20
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810620 1058 7.66 31-58.81 117- 5.83 0.65 9 268 42.8 0.24 3.1 3.0
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CCS IPU 10 58 15.17
IKP P 10 58 27.70 S 43.70
BAR P 10 58 23.10 S 35.20
SYS P 10 58 19.70 S 28.70
GLA P 4 10 58 0.00 S 2 72.70
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810621 0701 9.77 31-56.28 116- 3.86 14.82 14 112 57.2 0.61 3.4 3.0
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CCS IPU 7 1 19.17 S 27.42
SPM IP 9 7 1 22.00 S 34.60
CRB IPU9 7 1 20.00 S 29.40
IKP P 7 1 23.80 S 32.40
BAR P 7 1 26.50 S 39.20
GLA P 7 1 34.70 S 54.70
SYS P 7 1 27.20 S 39.70
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810622 0731 46.00 33-15.32 115-59.96 10.46 12 233 68.0 0.69 4.9 4.7
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CCS IPD 7 32 12.80 S 31.65
CRB IPU9 7 32 12.00 S 27.20
IKP P 7 31 57.40 S 66.70
BAR P 7 32 1.00 S 11.70
GLA P 7 32 4.20 S 17.70
SYS P 7 32 5.20 S 17.70
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810622 1539 30.03 31-36.60 116-22.09 24.04 14 273 40.1 0.60 6.4 5.9
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CCS IPU9 15 39 35.95 S 41.90
CRB IP 9 15 39 45.00 S 55.50
IKP P 15 39 47.20 S 61.70
BAR P 15 39 47.70 S 62.70
PLM P 15 39 58.70 S 82.70
GLA P 15 39 62.20 S 82.70
SYS P 15 39 48.20 S 61.20
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810624 1048 34.06 31-52.50 116-37.83 8.00* 5 227 3.2 0.19 7.3 6.4
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CCS IPD 10 48 35.52
IKP P 2 10 48 50.60 S 2 63.60
BAR P 2 10 48 49.60 S 2 60.60
EPICENTRAL LOCATIONS AND ARRIVAL TIMES
JULY 1981
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810704 0604 36.74 31-47.66 116-43.04 12.59 7 240 9.6 0.17 6.0 1.7
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IPD 6 4 47.10 S 54.50
SPM P 6 4 59.40 S 2 74.00
ENS IPD 6 4 39.50 S 42.00
CCS IPU 6 4 39.30
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810705 0317 41.94 31-48.38 116-35.39 11.75 8 186 9.8 0.48 37.8 26.4
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IPD 3 17 52.20 S 59.30
ENS IPD 3 17 44.97 S 47.27
SPM P 3 17 64.70 S 79.70
CCS IPU 3 17 44.15 S 46.25
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810705 0320 55.99 31-47.87 116-30.05 08.00* 4 312 17.3 0.46
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IPD 3 20 67.08 S 2 74.17
ENS IPD 3 20 59.59
CCS IPU 3 20 58.82
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810705 0329 33.50 31-48.78 116-31.98 08.00 7 166 13.8 0.44 18.8 13.2
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPD 3 29 36.65 S 1 38.76
SPM P 3 29 55.79 S 71.31
CRB IPD 3 29 44.07 S 51.18
CCS IPU 3 29 35.78
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810705 0416 36.27 31-51.60 116-34.06 05.28 16 145 9.1 0.68 3.5 2.5
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPD 4 16 38.53
SPM P 4 16 58.10 S 2 73.20
CRB IPD 4 16 46.00 S 52.50
CCS IPU 4 16 37.49
BAR P 4 16 51.50 S 63.00
IKP P 4 16 53.50 S 65.50
PLM P 4 16 63.80 S 84.00
CPE P 4 16 56.80 S 72.00
SYS P 4 16 51.10 S 2 61.00
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810705 0422 7.30 31-50.76 116-34.69 07.98 10 260 8.5 0.42 5.4 4.1
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IP- 4 22 9.60
CRB IPD 4 22 17.10 S 24.30
CCS IP 4 22 8.87
IKP P 2 4 22 24.00 S 2 36.00
PLM P 2 4 22 34.00 S 2 55.00
SYS P 4 22 22.00 S 33.00
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810706 1112 48.27 31-50.04 116-29.59 03.17 19 151 16.6 1.17 4.8 4.7
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
SPM IP- 11 12 70.18 S 85.75
CRB IPD 11 12 58.60 S 64.19
ENS IPD 11 12 51.30 S 1 53.30
CCS IPD 11 12 50.65
BAR P 11 12 64.50 S 76.50
IKP P 11 12 65.70 S 77.50
PLM P 11 12 75.80 S 96.00
GLA P 11 13 21.50 S 54.00
CPE P 11 12 69.20 S 85.00
SYS P 11 12 67.20 S 2 78.00
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810707 0108 52.75 31-51.75 116-35.00 07.11 13 248 7.6 0.30 2.2 1.4
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPD 1 8 54.17 S 56.38
CRB IPD 1 8 61.99 S 68.98
CCS IPU 1 8 54.25 S 56.20
SPM EP 2 1 8 73.47
IKP P 1 8 69.50 S 82.00
PLM P 1 8 79.00 S 99.00
SYS P 1 8 67.20 S 78.00
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810708 2251 17.26 31-57.99 116-14.68 20.33 10 171 8.4 0.22 1.8 1.5
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
RAN IPD 22 51 21.11
CRB IPD 22 51 27.07 S 34.73
ENS IP 22 51 24.38
CCS IPD 22 51 24.75 S 31.00
BAR P 2 22 51 32.00 S 2 43.00
SPM P 2 22 51 36.65 S 2 49.32
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810709 1423 14.38 33-12.31 116-47.53 00.79 14 155 17.7 0.60 4.1 4.0
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
RAN IP 2 14 23 39.88 S 58.25
CRB IP- 14 23 32.00 S 44.10
SPM P 9 14 23 0.00 S 28.00
BAR P 14 23 24.50 S 32.00
IKP P 14 23 31.00 S 42.00
PLM P 14 23 17.50 S 20.00
SYS P 14 23 27.00 S 37.00
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810709 1647 59.60 31-56.36 116- 7.42 08.00* 6 249 14.7 0.28 4.9 4.7
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
RAN IPD 16 48 2.64 S 4.89
CRB IPD 16 48 10.55 S 20.11
IKP P 2 16 48 13.00 S 2 24.00
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810724 1117 57.74 31-50.70 116-16.29 17.27 12 135 37.2 0.41 3.6 2.5
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CCS IPD 11 18 4.41 S 9.97
CRB IP 11 18 8.80 S 17.30
SPM P 9 11 18 0.00 S 12.00
BAR P 11 18 13.90 S 26.40
IKP P 11 18 12.70 S 24.40
SYS P 2 11 18 15.40 S 26.40
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810724 1138 49.97 32- 3.57 116-17.55 13.02 14 94 40.2 0.39 3.5 4.6
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CCS IPD 11 38 57.05 S 63.41
CRB IPU 11 38 58.45
ENS IP 11 38 57.00 S 62.40
SPM P 9 11 38 0.00 S 3 15.50
CPR IPD 11 38 67.38
BAR P 11 38 62.90
IKP P 11 38 61.60
GLA P 11 38 76.20
CPE P 11 38 68.70 S 2 74.40
SYS P 11 38 62.90EPICENTRAL LOCATIONS AND ARRIVAL TIMES
AUGUST 1981
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810804 1915 56.17 32- 3.38 116-16.16 11.60 18 95 42.0 0.92 3.3 5.4
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPU 19 16 3.40 S 7.40
SPM IP+ 19 16 17.63 S 32.83
CRB IPU 19 16 4.60 S 11.10
CCS IPD 19 16 5.15 S 10.75
BAR P 19 16 9.70 S 18.80
IKP P 19 16 8.10 S 16.20
PLM P 19 16 21.00 S 39.00
GLA P 2 19 16 23.40 S 2 42.00
SYS P 19 16 10.00 S 19.90
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810805 0542 31.18 31-47.26 116-32.71 8.00* 9 180 14.3 0.50 23.9 14.6
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPD 5 42 34.20
CRB IP+ 5 42 41.90 S 49.60
SPM IPN 5 42 53.49 S 68.56
CCS IPU 5 42 34.11 S 36.07
PLM P 4 5 42 0.00 S 81.10
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810806 0218 14.16 33-21.19 116-47.13 8.00* 14 190 7.1 0.74 7.2 5.3
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IP+ 2 18 32.86 S 48.50
ENS IPU 2 18 40.20
BAR P 2 18 26.70 S 37.40
IKP P 2 18 30.90 S 2 43.50
PLM P 2 18 15.30 S 18.50
GLA P 2 2 18 45.20
CPE P 4 2 18 0.00 S 2 23.90
SYS P 2 18 28.20 S 40.10
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810809 0443 14.43 32-50.93 115-39.99 14.04 16 137 47.0 0.51 2.7 3.0
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
SPM IP 9 4 43 0.00 S 23.00
ENS IP+ 4 43 36.65 S 2 53.33
CRB IP 4 43 32.26 S 45.04
CCS EP+ 4 43 36.90 S 53.55
IKP P 4 43 22.50
PLM P 4 43 33.80 S 2 49.80
GLA P 4 43 28.30 S 38.30
CPE P 4 43 35.80 S 50.80
SYS P 4 43 33.20 S 2 45.80
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810812 1559 53.33 32-33.06 116-18.45 2.26 7 2.3
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IP- 15 59 1.30 S 6.60
ENS IP- 15 59 6.50 S 16.00
BAR P 2 15 59 66.20
IKP P 15 59 57.70
SYS P 15 59 64.00
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810813 0509 39.75 33-21.64 116-46.18 5.77 12 237 8.6 0.66 6.8 5.9
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS EP+ 5 9 66.60
CRB IP 5 9 59.60 S 74.50
BAR P 4 5 9 0.00 S 2 63.10
IKP P 5 9 57.10
PLM P 5 9 41.30 S 43.60
CPE P 5 9 49.30 S 59.60
SYS P 5 9 54.40 S 65.50
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810817 1005 3.96 33-27.46 116-20.24 8.00* 6 297 50.1 0.24 8.2 8.9
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IP 9 10 5 0.00 S 16.20
PLM P 10 5 12.80 S 2 20.20
CPE P 2 10 5 20.30 S 2 32.10
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810821 0917 19.14 31-47.05 115- 0.70 5.90 8 2.5
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IP- 9 17 42.65 S 2 61.92
CRB IP- 9 17 45.39 S 64.73
CCS IP- 9 17 42.99 S 60.99
IKP P 9 17 41.70 S 58.30
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810821 1318 12.72 32-56.17 115-48.94 14.31 5 285 42.0 0.73 19.4 7.2
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IP 2 13 18 30.50 S 43.00
PLM P 13 18 29.50 S 3 45.30
SYS P 2 13 18 32.10
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810823 0344 20.75 33-16.39 116-22.44 8.00* 14 239 46.3 0.74 7.0 9.1
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IP 2 3 44 46.40 S 1 65.40
CRB IPD 3 44 39.60 S 53.50
BAR P 3 44 34.20 S 42.50
IKP P 3 44 31.60 S 42.80
PLM P 3 44 28.70 S 35.70
CPE P 3 44 34.20 S 44.20
SYS P 3 44 36.70 S 47.60
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810823 0643 31.16 33-11.57 116-10.89 2.10 10 272 65.8 0.69 5.2 4.8
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IP 2 6 43 57.40 S 2 75.40
CRB IP+ 6 43 49.00 S 64.00
PLM P 6 43 42.20 S 2 53.20
CPE P 6 43 46.90 S 59.00
SYS P 2 6 43 0.00 S 60.10
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810824 0750 39.77 31-50.23 116-16.15 15.46 9 161 37.5 0.21 1.8 1.6
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CCS IPD 7 50 46.65 S 52.15
ENS IP 7 50 46.60 S 51.50
SPM IP+ 7 50 58.42
CRB IP 7 50 51.17 S 59.45
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810826 0641 41.62 33-15.74 116- 1.10 15.80 15 185 68.6 0.84 3.7 3.4
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IP+ 6 41 67.60 S 88.50
CRB IP-1 6 41 61.40 S 2 75.40
BAR P 4 6 41 0.00 S 67.80
IKP P 6 41 52.20 S 62.70
PLM P 6 41 54.70 S 2 66.20
GLA P 6 41 60.70 S 72.40
CPE P 6 41 58.40 S 71.60
SYS P 6 41 60.10 S 72.90
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810828 0142 0.89 33-26.93 115-40.16 8.00 8 215 90.0 0.55 9.9 22.6
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IP- 1 42 31.20
CRB P 1 42 24.20
BAR P 1 42 20.60
IKP P 1 42 17.30
PLM P 1 42 19.40
GLA P 1 42 16.00
CPE P 1 42 24.20
SYS P 1 42 24.80
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810828 0732 25.67 33-16.33 116- 0.10 11.10 10 186 69.8 1.04 7.0 5.9
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IPD 7 32 46.20 S 60.20
ENS IP-2 7 32 54.24 S 72.32
BAR P 4 7 32 0.00 S 51.20
IKP P 7 32 37.80 S 2 47.20
PLM P 7 32 39.90
GLA P 7 32 42.70
SYS P 4 7 32 0.00 S 57.80
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810828 0736 18.15 33-11.81 116- 5.85 12.57 7 257 60.8 0.26 2.9 2.0
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IP 7 36 36.70 S 50.30
BAR P 4 7 36 0.00 S 41.50
IKP P 7 36 28.20 S 2 37.20
PLM P 7 36 30.70
SYS P 4 7 36 0.00 S 48.00
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810829 0941 29.56 33-12.52 116- 6.76 12.75 7 257 62.1 0.22 2.5 1.6
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IP- 9 41 47.94 S 62.02
BAR P 4 9 41 0.00 S 53.00
IKP P 2 9 41 38.70 S 48.50
PLM P 9 41 41.80
SYS P 4 9 41 0.00 S 59.20
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810829 2157 6.65 33-12.90 116-46.57 3.81 14 276 47.9 0.33 2.0 1.6
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IP+ 21 57 30.61 S 48.34
CRB IPU 21 57 23.50 S 37.30
CCS IPD 21 57 31.15 S 51.15
BAR P 21 57 17.20 S 25.60
IKP P 21 57 22.20 S 33.50
CPE P 21 57 14.40 S 21.30
SYS P 21 57 19.10 S 29.00
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810830 1317 24.94 32-32.76 116-17.13 16.76 14 150 20.2 0.64 2.4 3.1
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IP- 13 17 38.46 S 48.65
CRB IPU 13 17 33.27 S 39.76
CCS IPD 13 17 39.09 S 49.15
BAR P 4 13 17 0.00 S 32.90
IKP P 4 13 17 0.00 S 32.80
PLM P 13 17 42.20 S 54.60
CPE P 13 17 39.20 S 49.30
SYS P 13 17 35.90 S 43.10
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810830 1357 41.95 31-35.07 115-01.00 5.96 11 2.6
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPD 13 58 6.50 S 24.88
CRB IPD 13 58 9.30 S 29.30
SPM IP- 13 58 52.30 S 61.10
CCS IP- 13 58 6.95 S 24.40
IKP P 4 13 58 0.00 S 2 24.70
PLM P 4 13 58 0.00 S 54.10
SYS P 4 13 58 0.00 S 43.10
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810831 0850 24.75 31-29.55 114-58.10 5.96 15 3.6
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
SPM IPU 8 50 21.90 S 30.40
ENS EPU 8 50 36.00
CRB IPU 8 50 39.40
CCS EPU 8 50 35.98
PLM P 2 8 50 69.10
BAR P 8 50 55.50 S 81.00
IKP P 8 50 52.00 S 69.50
GLA P 8 50 42.80
CPE P 8 50 62.10 S 92.50
SYS P 8 50 60.20 S 81.40
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810831 1409 22.00 31-24.07 115-38.34 8.00* 8 142 42.8 0.52 5.7 8.1
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IPU 14 9 45.00 S 60.50
ENS IPU 14 9 40.60
SPM IP 14 9 30.34 S 36.14
PLM P 4 14 9 0.00 S 87.10
GLA P 4 14 9 0.00 S 74.00
SYS P 4 14 9 0.00 S 69.60
EPICENTRAL LOCATIONS AND ARRIVAL TIMES
SEPTEMBER 1981
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
810904 0227 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 0733 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 0917 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 0043 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
EPICENTRAL LOCATIONS AND ARRIVAL TIMES
OCTOBER 1981
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811004 0049 22.92 32- 0.25 116-31.15 8.00* 4 244 19.2 0.03
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPD9 0 49 0.00 S 2.80
CRB IPD9 0 49 0.00 S 5.30
CCS IP+ 0 49 26.70 S 1 29.76
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811009 1034 47.38 31-50.66 116-43.45 8.00* 5 301 6.3 0.23 53.1 28.7
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CCS IPU 10 34 48.91 S 1 50.76
CRB IP+ 10 34 57.10 S 1 63.90
ENS IPD 10 34 49.20
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811010 1402 20.02 31-50.84 116-38.13 8.69 7 229 3.5 0.06 1.0 0.5
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPD 14 2 21.65
CRB IPD 14 2 29.35 S 1 36.45
CCS IPD 14 2 21.63 S 23.00
RAN IPD 14 2 26.33 S 1 31.19
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811010 1406 40.24 31-50.45 116-38.34 8.82 7 242 3.8 0.17 2.6 1.3
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
RAN IPD 14 6 46.60 S 1 51.60
CCS IPD 14 6 41.92 S 1 43.42
CRB IP+ 14 6 49.85 S 1 56.75
ENS IPD 14 6 41.75
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811010 1512 15.22 31-50.74 116-37.41 8.00* 6 222 4.6 0.12 3.1 1.7
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
RAN IPD 15 12 21.30
CCS IPD 15 12 16.72 S 1 18.23
CRB IP+ 15 12 24.75 S 1 31.75
ENS IPD 15 12 16.85
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811011 1029 24.61 31-50.52 116-37.45 8.00* 7 228 4.7 0.25 3.8 2.3
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CCS IPU 10 29 26.07 S 1 28.08
RAN IPD 10 29 30.60 S 1 35.60
ENS IPD 10 29 26.10
CRB IP- 10 29 34.30 S 41.20
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811011 1358 13.90 31-49.86 116-38.59 8.00* 7 256 4.6 0.10 1.3 0.7
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IPU 13 58 23.50 S 1 30.90
RAN IPD 13 58 20.31 S 1 25.38
ENS IPD 13 58 15.70
CCS IPU 13 58 15.36 S 1 17.06
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811012 1107 8.09 31-50.38 116-38.80 8.00* 9 252 3.5 0.21 1.8 0.9
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IP+ 11 7 9.80
CRB IP+ 11 7 17.70 S 1 24.70
CCS IP+ 11 7 9.15 S 1 10.80
RAN IPD 11 7 14.80 S 1 19.40
SAN IPU 11 7 10.99 S 1 13.04
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811012 1802 37.41 31-45.62 116- 3.41 8.00* 7 325 58.7 0.08 9.7 19.4
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPU 18 2 47.65 S 1 55.85
CRB IP- 18 2 51.85 S 1 62.95
CCS IP- 18 2 47.60
SAN IP+ 18 2 47.75 S 55.81
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811012 0640 6.74 31-38.38 115-51.31 8.00* 12 334 48.3 0.62 5.3 2.8
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IP+ 6 40 20.20 S 1 30.70
CRB IP+ 6 40 24.50 S 1 38.00
SAN IP+ 6 40 20.25 S 1 30.75
CCS IP+ 6 40 21.09 S 1 31.77
TUL IPU 6 40 17.05 S 1 27.10
RAN IP+ 6 40 16.20 S 1 22.90
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811013 2159 13.08 31-42.25 115-55.34 8.00* 8 332 39.1 0.50 6.2 3.0
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IP+ 21 59 29.80 S 1 42.70
ENS IPU 21 59 25.20 S 2 36.00
RAN IPD 21 59 20.20 S 1 24.20
TUL IP- 21 59 23.05 S 1 31.65
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811014 2323 25.91 31-50.23 116-39.16 8.00* 8 279 3.6 0.19 1.9 1.0
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IP+ 23 23 27.80
CRB IP+ 23 23 35.50
CCS IP+ 23 23 27.18 S 1 28.93
TUL IPD 23 23 28.94 S 1 31.59
SAN IPU 23 23 28.50 S 1 30.80
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811015 1224 53.37 31-48.14 116-45.17 8.00* 8 252 11.2 0.44 8.2 8.4
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPU 12 24 56.00 S 1 56.80
CCS IPD 12 24 56.33
TUL IPU 12 24 59.59
SAN IP- 12 24 57.25 S 1 59.55
LGR IPU 12 24 56.65 S 1 58.70
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811015 1526 27.85 33- 9.91 116-57.57 0.47 10 346 98.4 0.44 8.5 2.8
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IP+ 15 26 51.40 S 1 70.70
CRB IP- 15 26 44.30 S 1 58.20
TUL IP- 15 26 52.08 S 1 70.66
RAN IP- 15 26 52.60 S 1 72.20
SAN IP+ 15 26 50.05 S 1 68.00
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811015 1734 26.33 31-48.49 116-40.53 8.00* 6 205 8.4 0.20 2.0 5.9
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPD 17 34 28.50
LGR IP- 17 34 29.07
SAN IP+ 17 34 29.60 S 1 32.10
TUL IPD 17 34 20.39 S 1 32.70
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811015 1742 41.90 31-48.99 116-30.13 8.00* 7 151 17.0 0.34 1.5 6.8
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPD 17 42 44.70
RAN IP- 17 42 46.51 S 1 49.27
SAN IP+ 17 42 46.30 S 1 48.81
LGR IP+ 17 42 45.73 S 1 48.09
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811015 2122 51.90 31-38.01 115-39.81 8.00* 10 338 71.4 0.23 15.9 10.0
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IP- 21 23 8.30 S 1 21.20
CRB IP- 21 23 11.90 S 1 27.10
SAN IP- 21 23 8.25 S 1 20.46
AGC IP- 21 23 4.10 S 1 13.90
TUL IP+ 21 23 6.33 S 1 17.32
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811015 2339 58.07 32-30.41 116- 6.64 8.00* 5 321 56.2 0.17 9.8 18.6
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPD 23 40 13.00
CRB IPD 23 40 8.00 S 1 15.90
TUL IP+ 23 40 10.90 S 1 21.20
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811016 0337 25.50 31-48.37 116-29.84 36.07 8 155 10.4 0.42 7.5 6.7
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS EPD 3 37 31.90
CRB EPD 3 37 35.50
TUL EP- 3 37 31.65
CCS EP+ 3 37 32.25
SAN EPD 3 37 32.20
LGR EP+ 3 37 31.25
AGC EP- 3 37 31.10
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811016 0452 18.35 31-47.99 116-39.62 8.00* 8 191 7.6 0.17 1.2 3.0
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPD 4 52 20.60
TUL IPD 4 52 21.95 S 1 24.70
CCS IP+ 4 52 20.35
SAN IP+ 4 52 21.85 S 1 23.70
LGR IPU 4 52 20.90 S 1 23.20
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811016 0452 31.69 31-47.67 116-38.70 8.00* 10 175 8.4 0.18 1.0 1.8
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPD 4 52 34.20
AGC IP+ 4 52 36.50 S 1 40.20
LGR IPU 4 52 34.15 S 1 36.30
TUL IPD 4 52 35.30
CCS IPU 4 52 33.60 S 1 35.30
SAN IPU 4 52 35.15 S 1 37.07
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811016 0810 11.46 31-47.89 116-38.29 8.00* 7 169 9.7 0.20 1.5 3.8
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IP- 8 10 13.90
TUL IP- 8 10 14.98 S 1 17.28
SAN IP+ 8 10 15.00 S 1 17.25
LGR IP+ 8 10 13.90 S 1 16.15
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811016 1133 29.67 31-47.87 116-40.43 3.20 6 204 9.5 0.01 0.1 0.6
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IP+ 11 33 31.40
TUL IP- 11 33 33.20 S 1 35.95
SAN IP+ 11 33 32.95
LGR IP+ 11 33 32.05 S 1 33.95
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811016 1755 42.31 31-39.25 116- 6.40 8.00* 7 345 33.3 0.24 4.6 1.3
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IP- 17 55 52.70 S 1 60.50
AGC IP+ 17 55 48.29 S 1 53.20
SAN IP+ 17 55 52.63 S 1 60.69
TUL IP- 17 55 50.59
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811016 2200 8.62 31-55.11 116-45.64 8.00* 8 258 9.9 0.37 3.1 3.1
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IP+ 22 2 10.90 S 1 12.20
CRB IP+ 22 2 17.20 S 1 22.95
AGC IP- 22 2 15.25 S 1 21.50
SAN IPD 22 2 10.79 S 1 12.90
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811016 2317 20.33 32- 4.53 116-59.50 8.00* 10 281 35.1 0.15 1.2 0.9
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
SAN IPD 23 17 26.51 S 1 31.42
ENS IP+ 23 17 27.20 S 1 32.50
CRB IP- 23 17 28.00 S 1 33.50
TUL IP+ 23 17 29.07
ZOR IP+ 23 17 31.27
AGC IP+ 23 17 31.10 S 1 39.88
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811017 0140 11.42 31-46.38 116-40.76 8.00* 11 135 5.6 0.56 2.6 4.8
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPD 1 40 14.70
SAN IP+ 1 40 15.65 S 1 18.35
LGR IPU 1 40 14.63 S 1 15.83
AGC IPD 1 40 16.95 S 1 20.05
TUL IPD 1 40 15.73 S 1 18.48
PTB IP+ 1 40 12.30 S 1 13.85
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811017 0459 48.89 31-39.06 115-48.63 8.00* 12 320 57.7 0.32 17.6 35.1
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IP+ 4 59 63.30 S 1 74.80
CRB IP+ 4 59 67.80 S 1 81.50
TUL IP+ 4 59 60.90 S 1 70.27
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811017 0600 4.99 31-37.80 115-52.06 8.00* 8 338 53.8 0.08 18.7 37.3
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPU 6 0 18.80
TUL IP+ 6 0 16.43 S 1 25.49
LGR IP- 6 0 17.28
AGC IPD 6 0 14.35 S 1 21.77
SAN IP 6 0 18.88 S 1 29.67
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811017 1127 14.13 31-46.59 116-42.28 8.00* 10 168 4.3 0.39 2.1 3.1
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IP- 11 27 17.00
SAN IP+ 11 21 18.40
AGC IP- 11 27 19.65
LGR IP+ 11 27 17.41
TUL IPD 11 27 18.58 S 1 21.29
PTB IPU 11 27 15.20 S 1 16.60
ZOR IP+ 11 27 18.72 S 1 21.80
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811017 1947 23.19 33-12.44 116-20.05 8.00* 10 344 103.8 0.41 11.5 5.0
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IP+ 19 47 40.30 S 1 54.10
CCS IP- 19 47 46.60 S 1 66.65
PTB IP- 19 47 48.50 S 1 69.10
TUL IP- 19 47 46.10 S 1 63.55
AGC IP- 19 47 46.70 S 1 64.25
EPICENTRAL LOCATIONS AND ARRIVAL TIMES
NOVEMBER 1981
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811118 2138 15.87 31-50.40 116-49.87 9.44 5 298 16.1 0.24 27.9 25.7
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IPD 21 38 25.50
ENS IPU 21 38 19.10 S 22.10
CCS IPU 21 38 19.31 S 21.28
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811120 1426 53.85 32-11.09 115-51.08 3.21 5 172 72.9 0.21 8.0 19.1
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IP+ 14 27 7.84 S 18.23
ENS IPU 14 27 8.39 S 17.76
VER IPU 14 27 6.25 S 16.73
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811121 0626 51.24 31-54.85 116-12.50 8.00 6 307 43.3 0.25 23.0 29.0
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
CRB IPD 6 26 62.30 S 70.50
ENS IP 6 26 58.72 S 64.60
CCS IPD 6 26 58.96 S 65.40
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811121 0812 45.21 31-55.60 116-11.89 8.00 6 307 44.4 0.24 28.4 36.1
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPU 8 12 53.14 S 58.72
CRB IP- 8 12 55.90 S 64.55
CCS IPD 8 12 53.17 S 59.60
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811127 0125 11.56 32- 1.83 115-46.65 8.00 4 327 85.4 0.18
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPU 1 25 26.21 S 37.59
CRB IP 1 25 26.74 S 38.58
CCS IPD 1 25 25.74 S 35.85
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811129 0054 15.51 31-22.77 116-42.08 8.39 4 358 54.3 0.21
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPD 0 54 25.30 S 32.70
CRB IP 0 54 33.30 S 40.30
CCS IPU 0 54 24.80
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811129 0147 17.54 31-47.32 116-32.42 16.59 5 318 14.6 0.25 23.6 7.5
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPD 1 47 21.20
CRB IP 1 47 28.40 S 35.80
CCS IPU 1 47 21.05 S 24.35
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811129 0350 29.72 31-49.80 116-35.60 8.67 5 309 7.9 0.05 16.5 8.7
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IPD 3 50 31.90
CRB IP 3 50 39.40 S 46.80
CCS IPU 3 50 31.70 S 33.40
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811130 0541 58.94 31-32.25 116-55.11 5.14 4 345 29.2 0.00
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENS IP- 5 42 6.89
CPS IPD 5 42 6.74
PTB IPD 5 42 4.11 S 8.14
EPICENTRAL LOCATIONS AND ARRIVAL TIMES
DECEMBER 1981
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811201 2356 9.91 31-48.44 116-40.75 4.38 7 150 8.5 0.28 2.4 3.7
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 23 56 11.98 S 12.87
CBX EP 23 56 20.31 S 27.28
CIP IPD 23 56 11.63
PTB IPD 23 56 12.45 S 12.85
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811202 1509 10.15 31-47.57 116-40.48 9.26 8 143 7.4 0.34 3.6 2.9
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 15 9 12.74
CBX EP 15 9 20.82 S 27.51
CIP IPD 15 9 12.60 S 14.02
PTB IPU 15 9 12.17 S 13.61
CCS IPU 15 9 12.63
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811202 1654 55.13 31-47.37 116-40.05 8.36 5 152 7.6 0.01 0.1 0.1
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPU 16 54 57.46 S 59.26
CIP IPD 16 54 57.27
PTB IP 16 54 57.10 S 58.65
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811202 2115 49.39 31-48.59 116-41.58 8.20 8 161 7.0 0.26 2.8 1.4
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 21 15 51.67 S 52.87
CBX IP 21 15 59.72 S 66.70
CIP IPD 21 15 51.64
CCS IP 21 15 51.66
PTB IPD 21 15 51.37 S 52.83
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811202 2116 56.44 31-48.17 116-41.50 9.57 9 157 7.5 0.32 3.3 1.3
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 21 16 58.90 S 60.10
CBX IP 21 16 66.84 S 73.73
CIP IPD 21 16 58.79
CCS IPU 21 16 58.90 S 60.60
PTB IPU 21 16 58.63 S 59.98
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811202 2117 58.75 31-48.16 116-39.75 9.34 6 138 8.2 0.27 4.3 3.4
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 21 18 1.16
CBX EP 21 18 9.24 S 16.13
CIP IPD 21 18 0.99 S 2.50
PTB IPD 21 18 0.83
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811202 2128 55.99 31-48.21 116-41.29 9.89 9 155 7.5 0.33 3.4 1.4
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 21 28 58.62 S 59.72
CBX IP 21 28 66.42 S 73.14
CIP IPD 21 28 58.33
CCS IPU 21 28 58.36 S 60.16
PTB IPD 21 28 58.23 S 59.63
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811204 1148 53.56 31-48.12 116-40.72 10.41 7 148 7.5 0.13 1.8 0.7
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 11 48 56.00
CBX IP+ 11 48 63.80 S 71.00
CIP IPD 11 48 56.00
PTB IPD 11 48 55.78
CCS IPD 11 48 55.80 S 57.55
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811204 1358 54.50 31-48.55 116-41.51 9.54 6 160 7.1 0.11 2.0 1.2
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 13 53 56.66
CBX IPD 13 53 64.56 S 71.92
CIP IPD 13 53 57.00
PTB IPD 13 53 56.63
CCS IPU 13 53 56.70
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811204 1417 9.79 31-48.73 116-41.25 9.74 6 158 6.6 0.21 3.6 2.2
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 14 17 19.17
CBX IP 14 17 20.02 S 26.91
CIP IPD 14 17 12.25
PTB IPD 14 17 11.95
CCS IPU 14 17 11.90
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811204 1433 8.19 31-48.51 116-40.25 11.11 6 146 6.6 0.14 2.2 3.3
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 14 33 10.64
CBX P 4 14 33 0.00 S 25.51
CIP IPD 14 33 10.87 S 12.43
PTB IPD 14 33 10.55
CCS IPU 14 33 10.58
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811204 1435 14.08 31-48.53 116-39.44 10.46 8 134 6.6 0.24 2.3 1.1
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 14 35 16.53
CBX IP 14 35 24.22 S 31.10
CIP IPD 14 35 16.50 S 17.95
PTB IPD2 14 35 16.14
CCS IPU 14 35 16.25 S 18.00
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811204 1436 14.81 31-48.53 116-41.01 9.80 7 154 6.8 0.21 2.8 1.2
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 14 36 17.13
CBX IP 14 36 25.11 S 32.00
CIP IPD 14 36 17.20
PTB IPD 14 36 16.93
CCS IPU 14 36 16.98
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811204 1439 53.19 31-47.80 116-40.89 4.12 5 155 7.4 0.04 0.6 3.0
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 14 39 54.97
CIP IPD 14 39 55.10 S 56.55
PTB IPD 14 39 54.66
CCS IPU 14 39 54.85
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811204 1549 38.40 31-51.27 116-37.30 5.44 7 143 4.3 0.07 0.7 1.0
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 15 49 39.70
CBX IP 15 49 47.70 S 54.60
CIP IPD 15 49 39.85
PTB IPD2 15 49 41.29
CCS IPU 15 49 39.66
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811204 1656 26.35 31-50.64 116-37.32 4.35 5 173 4.8 0.01 0.4 0.7
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 16 56 27.61
CBX IP 16 56 35.70 S 42.99
CIP IPD 16 56 27.60
CCS IPU 16 56 27.50
ENX IPD 16 56 57.43
CIP IPD 16 56 57.40
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811204 1707 34.22 31-51.07 116-36.87 8.10 4 151 5.0 0.02
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 17 7 36.00
CBX P 4 17 7 0.00 S 50.70
CIP IPD 17 7 35.95
CCS IP+ 17 7 35.85
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811204 1748 16.95 31-51.56 116-37.06 7.83 7 149 4.5 0.25 3.3 3.4
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 17 48 18.33
CBX EP 17 48 26.60 S 33.00
CIP IPD 17 48 18.68 S 20.18
CCS IPU 17 48 18.30 S 20.00
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811205 0301 13.93 31-47.80 116-39.38 10.18 7 149 7.7 0.30 3.7 1.6
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 3 1 16.53
CBX IP 3 1 24.62 S 31.30
CIP IPD 3 1 16.04
PTB IPD 3 1 16.13
CCS IPU 3 1 16.23 S 17.93
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811210 0721 35.79 31- 4.85 116-36.46 28.58 4 186 22.6 0.00
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 7 21 41.62
CBX IP 7 21 42.20 S 47.20
CIP IP- 7 21 42.41
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811215 2150 1.35 31-49.40 116-41.59 9.13 6 164 7.1 0.37 5.6 2.5
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 21 50 3.40 S 5.00
CBX IP 21 50 11.80 S 18.00
CIP IPD 21 50 3.80
PTB IPD 21 50 3.50
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811219 0141 17.52 31-47.73 116-40.09 8.00* 5 144 8.0 0.15 0.8 1.5
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IP 1 41 19.97 S 21.26
CIP IPD 1 41 19.71 S 21.13
PTB IPD 1 41 19.42
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811219 1321 3.65 31-47.63 116-39.72 10.46 6 149 8.3 0.19 2.7 1.2
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 13 21 6.26 S 8.15
CBX IPU 13 21 14.04 S 21.23
CIP IPD 13 21 5.91
PTB IPD 13 21 5.89
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811219 1615 59.90 31-48.04 116-40.72 9.58 7 147 7.9 0.24 2.2 1.4
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IP 16 16 2.00 S 4.20
CBX EP 16 16 10.30 S 17.40
CIP IPD 16 16 2.53 S 3.98
PTB IPD 16 16 1.94
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG
811224 1134 41.24 31-51.03 116-36.49 4.11 5 152 5.3 0.07 2.0 4.8
STATION PHASE TIME OF P PHASE TIME OF S MLR MLD
ENX IPD 11 34 42.69
CBX IPU 11 34 50.48 S 57.67
CIP IPD 11 34 42.42
CCS IPU 11 34 42.35
DATE ORIGIN LAT N LONG W DEPTH NO GAP DMIN RMS ERH ERZ MAG