SOUTHERN CALIFORNIA SEISMOGRAPHIC NETWORK A Cooperative Project of Caltech and the U.S. Geological Survey July 20, 1995 Weekly Earthquake Report for Southern California ------------------------------------------------ July 13 - 19, 1995 Prepared by: Kate Hutton, Seismological Laboratory (kate@bombay.gps.caltech.edu) Lucy Jones, U.S. Geological Survey California Institute of Technology For further information, please contact the authors or the Caltech Public Relations Office at 818-395-6326. For daily updates, call our Earthquake Information Hotline: 818-395-6977. -------------------------------- This week's Report covers the time period from midnight Thursday morning, July 13, Pacific Daylight Time, to midnight Wednesday night, July 19, 1995, Pacific Daylight Time. We recorded 323 earthquakes of during the 7-day period covered. It was, perhaps, even more a dull week than last week. The largest event was a M3.1 Landers aftershock, located south of Yucca Valley, last Thursday morning. Also, early last Thursday morning, there was a M3.0 offshore of the Vandenberg Air Force Base area, south-southwest of San Luis Obisbo The earthquake most likely to have been felt, although we didn't get calls about it, was a M2.9 in the Loma Linda area on Saturday afternoon. The table lists the quakes this week that were M2.0 or larger in the central part of the coverage area. Times are local times; if you want Greenwich Mean Time, add 7 hrs to the Pacific Daylight Time or 8 hrs to the Pacific Standard Time listed. Table 1 ------- Date Time N Lat. W Long. Mag ------------------------------------------------------------- 7/13 2:18 am 34 18.1 116 27.2 2.4 12 mi. N of Yucca Valley 7/13 6:08 am 34 56.1 120 52.1 3.0 26 mi. SSW of San Luis Obispo 7/13 8:39 am 34 0.8 116 19.5 3.1 9 mi. SE of Yucca Valley 7/13 9:26 am 34 27.0 116 28.3 2.0 23 mi. N of Yucca Valley 7/13 10:06 am 33 31.5 117 38.3 2.0 7 mi. NNW of San Clemente 7/13 5:33 pm 33 59.2 117 9.9 2.1 4 mi. S of Redlands 7/13 5:58 pm 33 14.3 116 6.2 2.7 6 mi. NNE of Ocotillo Wells 7/13 11:04 pm 34 8.6 116 26.1 2.1 1 mi. NNE of Yucca Valley 7/14 9:08 am 33 8.4 115 38.7 2.4 7 mi. N of Westmorland 7/14 9:20 am 33 8.1 115 39.2 2.0 " 7/14 5:24 pm 33 59.8 116 16.1 2.0 13 mi. SE of Yucca Valley 7/15 3:47 pm 34 2.1 117 15.5 2.9 Under Loma Linda 7/15 7:14 pm 34 17.9 116 50.4 2.5 2 mi. NNE of Big Bear City 7/16 4:56 am 34 13.6 116 26.8 2.0 7 mi. N of Yucca Valley 7/16 9:45 am 35 2.0 116 60.0 2.2 10 mi. N of Barstow 7/17 5:02 am 34 17.0 116 23.8 2.0 11 mi. NNE of Yucca Valley 7/17 7:31 am 34 0.7 117 6.7 2.2 4 mi. SE of Redlands 7/17 8:51 am 34 24.5 116 28.6 2.3 20 mi. N of Yucca Valley 7/17 12:47 pm 35 43.5 119 23.8 2.1 31 mi. NW of downtown Bakersfield 7/17 2:39 pm 34 54.4 119 19.8 2.3 17 mi. SSE of Taft 7/17 11:53 pm 34 47.4 116 17.4 2.3 35 mi. SSW of Baker 7/17 11:54 pm 33 29.3 116 29.7 2.1 11 mi. ESE of Anza 7/18 12:35 am 34 56.3 118 56.0 2.2 5 mi. S of the I5/99 interchange 7/18 1:13 pm 34 10.4 116 26.1 2.0 3 mi. N of Yucca Valley 7/19 12:39 am 35 57.6 117 40.8 2.5 16 mi. ESE of Coso Junction 7/19 3:44 am 33 56.9 118 19.2 2.1 Inglewook, 1 mi. E of Hollywood Park Racetrack 7/19 12:15 pm 35 57.6 117 40.6 2.1 16 mi. ESE of Coso Junction 7/19 4:42 pm 35 50.7 117 40.1 2.1 15 mi. N of Ridgecrest 7/19 5:44 pm 34 5.7 116 24.5 2.4 2 mi. SE of Yucca Valley 7/19 10:36 pm 36 27.1 117 55.4 2.2 12 mi. NNE of Olancha -------------------------------------------------------------