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                    November 3, 1994

    Weekly Earthquake Report for Southern California
    ------------------------------------------------
             October 27 - November 2, 1994

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, October 27, Pacific Daylight Time, to midnight Wednesday
night, November 2, Pacific Standard Time.  We recorded 330
earthquakes of M1.0 or larger this week.
    We were back to boring seismicity this week.
    No quakes were reported felt by the public.  The largest
event was a M3.3 Landers aftershock on Sunday afternoon, 17 miles
N of Yucca Valley.  It was the only M3 or larger event.  Landers
and Northridge aftershocks continue as expected, along with the
usual background seismic activity.
    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
-------------------------------------------------------------
    10/27  4:22 am  36 22.8  117 57.6  2.0  7 mi. NNE of Olancha
    10/27  8:54 am  32 37.2  115 54.1  2.2  9 mi. SSE of Ocotillo
    10/27  9:23 am  35 40.8  117 36.7  2.1  5 mi. NE of Ridgecrest
    10/27 12:13 pm  34 47.6  116 17.8  2.2  34 mi. SSW of Baker
    10/27 12:54 pm  34 20.9  116 27.4  2.2  15 mi. N of Yucca Valley
    10/27  3:37 pm  35 30.6  117 29.5  2.1  12 mi. SE of Ridgecrest
    10/27  3:54 pm  34  8.5  116 24.3  2.1  2 mi. NE of Yucca Valley
    10/27  7:13 pm  34  2.3  117 15.0  2.0  Loma Linda, 3 mi. ESE of the
                    I10/I215 interchange
    10/27 10:46 pm  34 32.3  120 31.6  2.1  5 mi. NNW of Pt. Conception
    10/28  1:03 am  34 18.6  118 27.8  2.1  2 mi. NW of San Fernando
    10/28  1:03 am  34 19.2  118 27.8  2.3  3 mi. NNW of San Fernando
    10/28  6:50 am  34 20.9  116 28.0  2.2  15 mi. N of Yucca Valley
    10/28  6:59 am  34 21.4  116 28.0  2.1      "
    10/28  7:01 am  34 21.0  116 28.3  2.0      "
    10/28  7:19 am  33 59.6  117  0.5  2.3  4 mi. NNW of Beaumont
    10/28  9:40 am  34 35.7  116 40.6  2.0  18 mi. NE of Lucerne Valley
    10/28 11:51 am  35 30.7  117 29.5  2.4  12 mi. SE of Ridgecrest
    10/28  4:01 pm  34 33.8  116 31.3  2.0  25 mi. ENE of Lucerne Valley
    10/28  4:56 pm  34 35.9  116 37.5  2.2  21 mi. ENE of Lucerne Valley
    10/28  6:52 pm  33 28.6  116 27.9  2.1  13 mi. ESE of Anza
    10/28  8:48 pm  35 30.5  117 29.5  2.7  12 mi. SE of Ridgecrest
    10/28 11:44 pm  34 21.0  116 28.1  2.4  16 mi. N of Yucca Valley
    10/29  2:37 am  34 19.8  118 35.5  2.1  4 mi. SW of Newhall
    10/29  5:00 am  34  0.9  117 13.6  2.1  3 mi. SW of Redlands
    10/29 10:14 am  34 23.2  116 27.8  2.2  18 mi. N of Yucca Valley
    10/29  1:09 pm  32 19.2  115 12.9  2.9  29 mi. SE of Calexico
    10/29  3:42 pm  34 22.1  118 36.4  2.0  3 mi. SSW of Magic Mtn.
    10/29  8:37 pm  36  4.5  117 51.5  2.1  5 mi. ENE of Coso Junction
    10/30  7:32 am  34 18.9  118 33.1  2.3  4 mi. SSW of Newhall
    10/30 12:07 pm  36  0.7  117 49.1  2.1  7 mi. ESE of Coso Junction
    10/30  4:45 pm  34 22.4  116 27.3  3.3  17 mi. N of Yucca Valley
    10/30  4:48 pm  34 22.5  116 27.4  2.2      "
    10/30  5:28 pm  33 57.0  116 39.6  2.7  7 mi. ENE of Cabazon
    10/30  6:24 pm  35 40.0  117 40.9  2.3  3 mi. NNW of Ridgecrest
    10/31 11:49 pm  34 22.6  116 27.2  2.0  17 mi. N of Yucca Valley
    10/31 12:42 am  34 37.5  116 38.6  2.1  21 mi. NE of Lucerne Valley
    10/31 12:47 am  34 28.4  116 30.4  2.3  24 mi. N of Yucca Valley
    10/31  5:03 am  33 41.0  116 47.9  2.4  6 mi. SW of Idyllwild
    10/31  2:17 pm  33 20.7  116 47.0  2.3  4 mi. E of Palomar Observatory
    10/31  4:37 pm  34 36.6  116 39.5  2.1  19 mi. NE of Lucerne Valley
    10/31  8:22 pm  36  0.6  117 49.2  2.1  7 mi. ESE of Coso Junction
    10/31  9:44 pm  34 26.4  116 28.1  2.0  22 mi. N of Yucca Valley
    11/1  11:54 pm  34 26.3  120 45.3  2.2  11 mi. SSW of Pt. Arguello
    11/1   2:07 am  36  0.1  117 47.5  2.1  9 mi. ESE of Coso Junction
    11/1   2:12 am  34 13.0  118 28.2  2.9  3 mi. ESE of Northridge
    11/1   4:20 am  32 19.3  115  6.2  2.5  33 mi. SE of Calexico
    11/1   7:01 am  34 17.2  118 25.2  2.0  1 mi. ENE of San Fernando
    11/1   8:31 am  35 50.5  117 47.2  2.0  16 mi. NNW of Ridgecrest
    11/1  11:22 am  34 59.6  116 56.8  2.6  8 mi. NNE of Barstow
    11/2   3:44 am  34 12.6  119 28.2  2.3  12 mi. NNE of Santa Cruz Is.
    11/2   7:15 am  34 55.2  118 41.6  2.0  12 mi. NE of Gorman
    11/2   9:43 am  33 56.0  116 21.5  2.2  8 mi. ESE of Desert Hot
                    Springs
    11/2  10:35 am  32 54.3  119  7.4  2.9  31 mi. SE of San Nicolas Is.
    11/2  11:13 am  34 33.8  116 30.4  2.1  31 mi. N of Yucca Valley
    11/2  12:22 pm  34 22.4  116 27.9  2.1  17 mi. N of Yucca Valley
    11/2   4:34 pm  34 49.5  116 41.5  2.2  19 mi. ESE of Barstow
    11/2   7:27 pm  34 14.3  118 39.2  2.0  3 mi. NW of Canoga Park
    -------------------------------------------------------------

    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.

               ------------------------------------------------
        
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