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- January 12, 1995
-
- Weekly Earthquake Report for Southern California
- ------------------------------------------------
- January 5 - 11, 1995
-
- Prepared by: Kate Hutton, Seismological Laboratory
- (kate@bombay.gps.caltech.edu)
- Lucy Jones, U.S. Geological Survey
- California Institute of Technology
-
- This document is a commentary on current seismic activity. The
- earthquakes discussed have been detected and processed
- automatically. All epicenters and magnitudes have been reviewed
- to exclude obvious blunders; however, they must still be
- considered preliminary. 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, January 5, Pacific Standard Time, to midnight
- Wednesday night, January 11, 1995, Pacific Standard Time. We
- recorded 225 earthquakes of M1.0 or larger during the 7-day period
- covered.
- We had another very quiet week. The only quake in our
- area that was felt was M3.0 near Barstow on Friday afternoon.
- With the exception of a M3.7 in Baja, which occurred on Tuesday
- evening, it was also the week's largest event.
- A total of 41% of the week's earthquakes were aftershocks:
- 12% from Northridge and 29% from Landers).
- 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
- -------------------------------------------------------------
- 1/5 2:44 am 34 34.3 116 32.5 2.0 24 mi. ENE of Lucerne Valley
- 1/5 5:08 am 34 17.0 118 23.4 2.1 2 mi. E of San Fernando
- 1/5 5:46 am 34 16.0 116 28.1 2.0 10 mi. N of Yucca Valley
- 1/5 7:15 am 34 15.9 118 34.8 2.0 3 mi. NW of Northridge
- 1/5 7:57 pm 36 14.8 120 50.0 2.9 27 mi. WNW of Coalinga
- 1/5 10:53 pm 34 33.7 116 31.2 2.7 25 mi. ENE of Lucerne Valley
- 1/5 10:55 pm 34 33.9 116 31.6 2.2 "
- 1/5 10:56 pm 34 15.4 118 39.8 2.0 2 mi. ESE of Simi Valley
- 1/5 11:30 pm 32 54.6 117 52.7 2.5 27 mi. ENE of San Clemente Is.
- 1/6 4:05 am 36 7.8 117 50.5 2.3 5 mi. E of Haiwee Reservoir
- 1/6 6:03 am 34 29.7 116 30.7 2.2 26 mi. N of Yucca Valley
- 1/6 6:59 am 34 4.2 119 37.9 2.1 7 mi. WNW of Santa Cruz Is.
- 1/6 6:59 am 33 4.0 116 25.9 2.2 9 mi. E of Julian
- 1/6 8:46 am 35 54.7 117 56.3 2.3 9 mi. S of Coso Junction
- 1/6 8:59 am 36 7.3 117 50.1 2.0 6 mi. E of Haiwee Reservoir
- 1/6 10:20 am 34 2.3 117 30.3 2.3 2 mi. SE of the I10/I15
- interchange
- 1/6 2:14 pm 35 1.8 116 59.4 3.0 10 mi. N of Barstow; FELT
- 1/6 5:17 pm 34 28.9 116 30.0 2.5 25 mi. N of Yucca Valley
- 1/6 6:54 pm 36 7.3 117 50.6 2.6 5 mi. E of Haiwee Reservoir
- 1/6 7:53 pm 33 48.8 116 12.1 2.5 6 mi. N of Indio
- 1/7 2:38 am 33 48.9 116 12.0 2.9 "
- 1/7 5:12 am 35 55.9 117 40.1 2.6 17 mi. ESE of Coso Junction
- 1/7 7:51 am 33 21.9 116 22.5 2.3 7 mi. N of Borrego Springs
- 1/7 11:14 am 35 55.9 117 40.0 2.3 17 mi. ESE of Coso Junction
- 1/7 3:43 pm 35 44.1 118 20.8 2.6 9 mi. NE of the town of Lake
- Isabella
- 1/7 10:08 pm 34 1.0 116 19.3 2.0 9 mi. SE of Yucca Valley
- 1/8 12:31 am 33 28.5 118 30.0 2.5 13 mi. NW of Avalon, Catalina
- Island
- 1/8 12:29 pm 36 4.5 117 27.9 2.0 18 mi. S of Panamint Springs
- 1/8 1:20 pm 34 17.3 118 28.6 2.1 2 mi. WNW of San Fernando
- 1/8 4:26 pm 36 7.1 117 50.8 2.3 5 mi. ESE of Haiwee Reservoir
- 1/8 6:08 pm 34 12.6 117 39.5 2.3 5 mi. S of Mt. Baldy
- 1/9 7:31 am 34 0.9 116 21.0 2.2 8 mi. SE of Yucca Valley
- 1/9 11:33 am 36 7.1 117 50.2 2.1 6 mi. ESE of Haiwee Reservoir
- 1/9 3:22 pm 33 18.6 116 17.9 2.2 5 mi. NE of Borrego Springs
- 1/10 1:39 am 34 13.5 118 35.5 2.0 1 mi. NNE of Canoga Park
- 1/10 5:09 am 34 17.4 118 23.3 2.6 2 mi. ENE of San Fernando
- 1/10 8:47 am 34 47.0 116 17.5 2.1 35 mi. SSW of Baker
- 1/10 11:03 am 33 15.3 116 17.7 2.2 4 mi. E of Borrego Springs
- 1/10 8:51 pm 32 20.0 115 16.4 3.7 26 mi. SSE of Calexico
- 1/10 8:59 pm 34 20.1 118 26.1 2.4 3 mi. N of San Fernando
- 1/10 9:15 pm 34 1.6 117 13.4 2.0 3 mi. SW of Redlands
- 1/11 4:08 am 36 13.1 119 22.1 2.2 8 mi. SSW of Visalia
- 1/11 10:32 am 34 3.1 117 30.3 2.4 2 mi. ESE of the I10/I15
- interchange
- 1/11 11:08 am 35 56.2 117 40.0 2.3 17 mi. ESE of Coso Junction
- 1/11 5:47 pm 33 28.8 116 28.5 2.3 12 mi. ESE of Anza
- 1/11 8:20 pm 34 20.8 118 40.6 2.1 5 mi. NNE of Simi Valley
- 1/11 9:54 pm 34 22.6 116 27.4 2.4 17 mi. N of Yucca Valley
- -------------------------------------------------------------
-
- Figure 1. A map of southern California showing the earthquakes
- recorded during the past week by the Caltech/USGS Seismic
- Network. Major faults are marked, as well as the metropolitan
- areas of Los Angeles (L.A.), Palm Springs (P.S.), San Diego
- (S.D.), and Santa Barbara (S.B.). The circles denote the
- earthquakes, the size of the circle indicating the magnitude.
-
-