SOUTHERN CALIFORNIA SEISMOGRAPHIC NETWORK A Cooperative Project of Caltech and the U.S. Geological Survey November 14, 1996 Weekly Earthquake Report for Southern California ------------------------------------------------ November 7 - 13, 1996 Prepared by: Nick Scheckel, 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 818-395-6327. For daily updates, call our Earthquake Information Hotline: 818-395-6977. -------------------------------- This week's Report covers the time period from midnight Thursday morning, November 7, Universal Time (ie. GMT), to midnight Wednesday night, November 13, Universal Time. In local time, the period of coverage is from 4 p.m., November 6, Pacific Daylight Time, to 4 p.m., November 13, Pacific Daylight Time. We detected and processed 232 earthquakes during the seven-day period covered. The largest earthquake this week was the only earthquake this week above a M3.0. It was a M3.7 which occurred early Wednesday morning near Borrego Springs. It was reported to us that it had been sharply felt in the San Diego area. An aftershock to the Northridge mainshock (M6.7 January 17th, 1996) was felt late Tuesday evening. It was a M2.6. Table 1 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 ------------------------------------------------------------- 11/ 7 3:34 am 36 44.2 118 15.7 2.2 5 mi. SW of Independence 11/ 8 1:41 am 33 7.7 115 38.5 2.2 2 mi. S of Obsidian Butte 11/ 8 5:29 am 34 38.8 116 39.6 2.2 21 mi. NE of Lucerne Valley 11/ 9 3:16 pm 35 4.9 118 44.1 2.0 10 mi. SSE of Arvin 11/ 9 3:53 pm 34 9.6 116 25.5 2.0 3 mi. NNE of Yucca Valley 11/ 9 9:49 pm 32 47.2 115 34.7 2.6 1 mi. WSW of El Centro 11/10 12:41 pm 32 47.1 115 34.7 2.1 " 11/11 1:06 am 34 58.3 116 57.0 2.1 7 mi. NE of Barstow 11/11 7:27 am 34 8.5 116 24.3 2.3 2 mi. NE of Yucca Valley 11/11 11:09 am 32 12.2 117 21.4 2.0 30 mi. SW of San Ysidro 11/11 9:15 pm 32 59.3 117 44.9 2.1 25 mi. SW of Oceanside 11/12 12:53 am 34 55.5 116 34.3 2.0 25 mi. E of Barstow 11/12 3:04 am 34 19.5 116 27.5 2.0 14 mi. N of Yucca Valley 11/12 7:26 am 33 55.9 116 51.7 2.7 Under Banning 11/12 7:50 am 34 37.7 116 30.6 2.1 27 mi. ENE of Lucerne Valley 11/12 2:18 pm 36 15.1 120 15.9 2.3 9 mi. NE of Coalinga 11/12 4:47 pm 34 1.0 116 19.0 2.1 8 mi. S of Joshua Tree 11/12 6:53 pm 33 12.5 116 1.5 2.0 5 mi. SW of Salton City 11/12 6:56 pm 34 19.7 116 49.9 2.1 4 mi. NNE of Big Bear City 11/12 8:38 pm 34 18.5 116 51.8 2.2 2 mi. NNW of Big Bear City 11/12 11:03 pm 34 16.3 118 26.4 2.6 Under Pacoima; FELT 11/13 3:59 am 32 6.0 116 59.1 2.0 31 mi. S of San Ysidro 11/13 4:37 am 33 28.1 116 27.2 3.7 15 mi. NNW of Borrego Springs; FELT 11/13 6:30 am 36 17.5 120 23.4 2.9 10 mi. N of Coalinga 11/13 1:16 pm 35 27.6 119 16.0 2.1 16 mi. WNW of Bakersfield 11/13 3:02 pm 34 7.8 116 59.5 2.4 7 mi. NNE of Yucaipa -------------------------------------------------------------