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1995-05-07
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April 27, 1995
Weekly Earthquake Report for Southern California
------------------------------------------------
April 20 - 26, 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, April 20, Pacific Daylight Time, to midnight
Wednesday night, April 26, 1995, Pacific Daylight Time. We
recorded 243 earthquakes of M1.0 or larger during the 7-day
period covered.
We had a very quiet week this week. The largest event
in our coverage area was a M3.2 in the Big Bear Lake area,
last Thursday afternoon. It could well have been felt; however,
we did not receive any inquiries.
Some might read significance into the quiet, but, just
as we say there is no great significance to a week with ten M3+
quakes, there is also no significance to a quiet week. Just
random fluctuation.
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
-------------------------------------------------------------
4/20 2:38 pm 34 18.1 116 54.7 3.2 4 mi. N of town of Big
Bear Lake
4/20 9:17 pm 35 38.8 117 39.7 2.4 1 mi. N of Ridgecrest
4/20 10:19 pm 33 29.3 116 29.6 2.1 11 mi. ESE of Anza
4/21 7:26 am 35 2.2 116 59.9 2.3 10 mi. N of Barstow
4/21 11:26 am 34 37.5 116 32.4 2.0 26 mi. ENE of Lucerne
Valley
4/21 1:16 pm 34 49.7 116 41.6 2.3 19 mi. ESE of Barstow
4/21 2:33 pm 35 29.6 120 4.1 2.1 10 mi. NNW of Simmler
4/21 5:28 pm 33 12.9 115 38.1 2.0 6 mi. WSW of Niland/
Obsidian Butte Area
4/21 7:11 pm 34 18.1 118 27.8 2.2 1 mi. NW of San Fernando
4/22 12:55 am 36 6.7 117 51.3 2.1 5 mi. ESE of Haiwee
Reservoir
4/22 11:59 am 35 29.8 120 4.5 2.1 10 mi. NNW of Simmler
4/22 5:37 pm 35 19.5 118 35.5 2.8 15 mi. NNW of Tehachapi
4/22 5:44 pm 34 58.2 116 57.8 2.5 6 mi. NNE of Barstow
4/22 6:48 pm 34 8.4 116 24.7 2.1 2 mi. NE of Yucca Valley
4/22 9:49 pm 34 15.2 118 35.9 2.0 3 mi. N of Canoga Park
4/23 12:52 am 34 20.7 116 28.5 2.2 15 mi. N of Yucca Valley
4/23 6:02 am 33 38.6 116 45.8 2.0 7 mi. SSW of Idyllwild
4/23 2:56 pm 34 15.4 116 49.7 2.0 1 mi. ESE of Big Bear
City
4/23 7:52 pm 34 19.5 118 38.6 2.2 4 mi. NE of Simi Valley
4/23 10:27 pm 34 25.2 118 38.3 2.3 2 mi. W of Magic Mtn.
4/24 2:44 am 34 14.9 116 44.2 2.3 6 mi. E of Big Bear City
4/24 3:59 am 34 25.6 116 29.2 2.0 21 mi. N of Yucca Valley
4/24 6:09 am 32 55.3 117 42.0 2.3 26 mi. SW of Oceanside
4/24 2:01 pm 34 51.6 118 45.9 2.2 6 mi. NE of Gorman
4/24 9:01 pm 33 57.9 116 19.5 2.4 10 mi. E of Desert Hot
Springs
4/25 1:16 am 35 2.7 119 11.8 2.2 13 mi. W of the I5/99
interchange/Wheeler Ridge
4/25 1:18 pm 34 21.5 118 38.3 2.0 5 mi. SSW of Magic Mtn.
4/25 2:48 pm 33 56.8 116 24.0 2.0 5 mi. E of Desert Hot
Springs
4/26 6:19 am 34 53.1 116 31.8 2.1 27 mi. E of Barstow
4/26 7:40 am 33 48.4 117 50.3 2.0 4 mi. E of Disneyland
4/26 10:15 pm 33 51.0 117 2.0 2.0 6 mi. SSW of Beaumont
-------------------------------------------------------------