March 16, 1995 Weekly Earthquake Report for Southern California ------------------------------------------------ March 9 - 15, 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, March 9, Pacific Standard Time, to midnight Wednesday night, March 15, 1995, Pacific Standard Time. We recorded 268 earthquakes of M1.0 or larger during the 7-day period covered. It was another quiet week. The largest event was a M3.5 Landers aftershock, that was located about 6 mi. E of Barstow. It occurred on Sunday evening and was felt in the Barstow area. Two smaller quakes were also slightly felt: a M2.4 Northridge aftershock on Friday evening and a M2.4 Landers aftershock on Sunday morning. The latter was felt in Yucca Valley. 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 ------------------------------------------------------------- 3/9 12:24 am 35 38.9 117 39.6 2.3 1 mi. N of Ridgecrest 3/9 5:45 am 32 19.1 115 14.3 3.3 28 mi. SSE of Calexico 3/9 5:48 am 32 18.6 115 13.8 2.8 " 3/9 1:00 pm 34 22.3 118 40.1 2.0 5 mi. SW of Magic Mtn. 3/9 3:23 pm 36 11.0 117 36.0 2.5 13 mi. SW of Panamint Springs 3/9 6:13 pm 33 28.9 116 27.7 2.7 13 mi. ESE of Anza 3/10 1:29 am 34 18.1 118 25.1 2.1 1 mi. NE of San Fernando 3/10 5:47 pm 34 14.1 118 29.3 2.1 2 mi. E of Northridge 3/10 6:31 pm 34 17.1 118 30.7 2.4 3 mi. NNE of Northridge FELT 3/10 10:33 pm 34 11.4 116 48.1 2.0 5 mi. SSE of Big Bear City 3/10 10:39 pm 34 21.3 118 39.4 2.2 6 mi. NNE of Simi Valley 3/10 11:24 pm 32 55.8 117 46.1 2.1 28 mi. SW of Oceanside 3/11 4:39 am 33 0.8 117 45.0 2.3 24 mi. WSW of Oceanside 3/11 6:35 am 34 27.1 116 28.8 2.1 23 mi. N of Yucca Valley 3/11 9:17 am 34 25.6 116 29.6 2.0 21 mi. N of Yucca Valley 3/11 2:25 pm 34 17.3 116 28.3 2.0 11 mi. N of Yucca Valley 3/11 3:31 pm 34 23.3 119 39.2 2.0 3 mi. SE of Santa Barbara 3/11 3:54 pm 34 1.6 117 1.2 2.0 7 mi. NNW of Beaumont 3/11 7:58 pm 34 9.5 116 25.5 2.0 2 mi. NNE of Yucca Valley 3/11 9:08 pm 34 17.4 116 26.8 2.0 11 mi. N of Yucca Valley 3/11 11:46 pm 33 1.9 115 33.3 2.2 3 mi. E of Westmorland 3/12 1:49 am 33 59.9 117 12.2 2.5 4 mi. SSW of Redlands 3/12 4:15 am 32 58.1 115 53.2 2.6 17 mi. NNE of Ocotillo 3/12 4:16 am 34 20.6 116 28.6 2.0 15 mi. N of Yucca Valley 3/12 4:49 am 34 18.6 118 26.4 2.2 1 mi. N of San Fernando 3/12 8:44 am 34 11.4 116 25.9 2.4 5 mi. N of Yucca Valley FELT 3/12 12:11 pm 34 11.6 116 49.1 2.4 5 mi. SSE of Big Bear City 3/12 6:04 pm 34 56.1 116 55.3 3.5 6 mi. ENE of Barstow FELT 3/13 12:50 am 34 6.6 116 51.9 2.0 2 mi. WNW of Mt. San Gorgonio 3/13 1:45 am 34 9.9 116 49.5 2.1 4 mi. N of Mt. San Gorgonio 3/13 3:36 am 34 58.5 116 57.3 2.0 7 mi. NNE of Barstow 3/13 4:23 pm 32 54.8 118 47.6 2.5 13 mi. SW of San Clemente Is. 3/13 6:27 pm 34 19.4 116 29.7 2.0 14 mi. NNW of Yucca Valley 3/13 8:48 pm 33 48.2 116 57.3 2.3 4 mi. NNE of Hemet 3/13 9:01 pm 33 56.8 118 39.0 2.0 6 mi. SSE of Malibu 3/13 9:10 pm 34 55.8 116 55.2 2.0 6 mi. ENE of Barstow 3/14 12:38 am 34 8.0 116 50.0 2.0 2 mi. N of Mt. San Gorgonio 3/14 4:06 am 34 25.0 116 29.3 2.1 20 mi. N of Yucca Valley 3/14 10:37 am 34 24.7 116 29.6 2.0 " 3/14 12:30 pm 34 3.9 117 17.4 2.1 Loma Linda, under the I10/I215 interchange 3/14 1:54 pm 33 25.1 118 0.1 2.2 14 mi. SSW of Newport Beach 3/14 3:57 pm 34 19.7 118 38.6 2.1 5 mi. NE of Simi Valley 3/14 4:20 pm 33 35.5 117 13.6 2.7 18 mi. SW of Hemet 3/15 5:03 am 34 9.5 116 25.4 2.1 3 mi. NNE of Yucca Valley 3/15 9:34 am 33 59.9 118 19.3 2.4 4 mi. E of Culver City 3/15 11:43 am 34 0.9 117 0.7 2.3 6 mi. NNW of Beaumont -------------------------------------------------------------