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³±±±±±±±±±±±±±±± California Division of Mines & Geology ONLINE ±±±±±±±±±±±±±±±³
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  DISCLAIMER -- THIS IS NOT AN EARTHQUAKE PREDICTION OR WARNING!

The commentary provided with these map(s) is for INFORMATIONAL
USE ONLY, and SHOULD NOT be construed as an earthquake prediction,
warning, or advisory.  Responsibility for such warnings rests with
the Office of Emergency Services of the State of California.

        PLEASE REMEMBER -- THIS IS PRELIMINARY DATA

Releasing these summaries on a timely basis requires that the
data, analysis, and interpretations presented are PRELIMINARY. Of
necessity they can only reflect the views of the seismologists who
prepared them, and DO NOT carry the endorsement of the U.S.G.S.
Thus while every effort is made to ensure that the information is
accurate, nothing contained in this report is to be construed as
and earthquake prediction, warning, advisory, or official policy
statement of any kind, of the U.S. Geological Survey, or the
U.S. Government.

                   FOR QUESTIONS CONCERNING THIS REPORT
                    Send e-mail to michael@andreas.wr.usgs.gov


                    Seismicity Report for Northern California,
                     the Nation, and the World for the week of
                              October 20 - 26, 1994

                            Data and text prepared by
                         Steve Walter and Barry Hirshorn
                              U.S. Geological Survey
                 345 Middlefield Rd.  MS-977, Menlo Park, CA  94025
                            Graphics by Quentin Lindh

San Francisco Bay Area

   For the seven-day period ending at midnight on Wednesday, October 26,
1994 the U.S. Geological Survey office in Menlo Park recorded 23
earthquakes of magnitude one (M1) and greater within the San Francisco
Bay area shown in Figure 1.  Seven of these were as large as M2.  This
total compares to 33 earthquakes during the previous seven-day period
(October 13 - 19), four of which were as large as M2.
   Two felt earthquakes occurred in the Bay Area during the past week.
The first and largest was a M3.0 Sunday afternoon that occurred on the
creeping segment of the San Andreas about six miles north-northwest of San
Juan Bautista (#1 in figure 1).  It was followed early Tuesday morning by
a pair of M2.5 events that also may have been felt in the San Juan
Bautista area.  A M2.8 earthquake on the central Hayward fault Tuesday
evening was felt by some residents of Oakland and San Leandro (#4/1).  It
was followed by a M1.8 aftershock early the next morning.
   A pair of small earthquakes occurred along the San Andreas fault west
of San Francisco over the weekend (#3/1).  The largest of these was a M2.1
early Sunday morning that apparently was not felt locally.  The most
recent comparable activity occurred June 1st of this year when a pair of
M2's occurred offshore of the Golden Gate.
   The Calaveras was almost completely quiet during the week with only one
earthquake as large as M2:  a M2.1 Wednesday morning that occurred about
four miles south of Hollister (#5/1).

Northern & Central California

   The creeping segment of the San Andreas was a bit more active than
usual with three M3 earthquakes and an equal number of M2's.  The first M3
was a M3.4 early last Thursday that occurred about seven miles northwest
of San Benito (#1/2).  It was followed Sunday by the M3.0 near San Juan
Bautista (#1/1 - discussed above) and a M3.1 Tuesday morning near the
south end of the creeping segment (#8/2).  Central California was
otherwise quiet at the M2 level.
   Activity in northern California was concentrated, as usual, in the Cape
Mendocino area.  The largest earthquakes were a trio of M3's on Saturday
and Sunday(#2/2).  All occurred offshore of the Cape along the Mendocino
transform fault, near the site of a M7.0 earthquake last September 1st.
    More interesting were four M2 events that occurred east and southeast
of Eureka (#5,#6,#7/2).  All had focal depths greater than 20 km,
indicating the earthquakes were related to subduction of the Gorda Plate
beneath this western edge of the continent.  Focal depths increased to the
east-southeast as would be expected for a dipping oceanic plate.
   Other earthquakes of interest include a M2.0 on the north end of the
Green Valley fault, about two miles northeast of Rohnert Park, and a trio
of M3 aftershocks in the Markleeville area southeast of Lake Tahoe (#3/2).


Long Valley Caldera

   There was a small cluster of earthquakes along the southern rim of the
caldera during a 12-hour period last Friday. The activity began with a
pair of M3 events early in the afternoon and was followed by five M2's in
the next six hours (#1/3).  A second, much smaller cluster occurred the
following morning beneath the town of Mammoth Lakes.  Only one of these
events was as large as M2 (#3/3).
    Activity south of the caldera was pretty much limited to a pair of
M2's southeast of Mt. Morrison (#2/3).

USA Seismicity (October 17 - 25)

    No notable earthquakes occurred in the lower 48 states, outside of
California, according to data provided by the National Earthquake
Information Center.  Aside from the northern California activity,
discussed above, southern California experienced a noticeable increase in
activity with M3 earthquakes observed in several locations.  The
Ridgecrest area, site of a M4.1 the previous week, saw a continuation of
activity with several M3 shocks during the current week (#1/4).  To the
southwest a M3.3 occurred in the southern San Joaquin Valley on Friday
while to the northeast a M3.4 earthquake occurred in the Death Valley area
on Sunday (#3/4).  Finally, on Monday morning a M3.1 Landers aftershock
was felt in the Yucca Valley area (#4/4).

The Planet Earth  (October 17 - 25)
    There was only one "large" earthquake on the planet during the past
week, a Mb6.1 in the Hindu Kush region of Afghanistan (#4/5).  It was
widely felt from Tajikistan to the northern Indian state of Kashmir.
Although no injuries were reported, Minor damage was reported to homes in
Srinagar, Kashmir.
    Aftershocks continued to decline in the Kuril Islands region following
the M8.2 "great" quake in early October.  The largest aftershock during
the week was a Mb5.3 last Sunday that was felt on the southern islands but
produced no damage.
    Other earthquakes of note include a Mb5.2 off the coast of El Salvador
(#1/5), a Mb5.6 in southern Argentina (#2/5), a Mb5.1 near the Chile-
Bolivia border (#3/5), and a Mb5.0 along the west Chile rise (#5/5).

Table 1. Northern & Central California Seismicity (M>1.0)

--ORIGIN TIME (UT)-- -LAT N-- --LON W-- DEPTH  N N RMS ERH ERZ       DUR
YR MON DA HRMN  SEC  DEG MIN  DEG  MIN    KM  RD S SEC  KM  KM REMKS MAG

94 OCT 20  729 34.23 38 47.65 122 45.20  3.58  8   .09  .7 1.2 GEY   2.6
94 OCT 20  949 37.88 36 16.66 120 23.84  9.19 30 1 .16  .4  .5 COA   1.8
94 OCT 20 1119 52.94 36 16.49 120 23.40  9.84  7 2 .03 1.0 1.2 COA   1.1
94 OCT 20 1159 52.98 37 31.54 118 26.92  7.92 16   .07  .3  .8 CHV   1.6
94 OCT 20 1306 38.84 36 34.66 121 10.31  8.34114 3 .12  .1  .2 PIN   3.4

94 OCT 20 1410 31.61 36 46.98 121 19.52  6.08  7   .02  .5  .9 PAI   1.2
94 OCT 20 1503 12.58 37 40.13 118 55.00  5.00  7   .04 1.5 1.8 DOM   1.0
94 OCT 20 1521 56.80 36  9.25 120  9.95  9.00  7   .13 2.2 3.1 COA-  1.5
94 OCT 20 1628 55.22 37 39.09 118 50.36 11.44  9   .06  .7 1.6 HCF   1.0
94 OCT 20 1747 45.51 37 37.92 118 49.71 10.51  8   .07  .7 1.5 HCF   1.0

94 OCT 20 1838 10.84 37 29.17 118 47.01 13.65 13   .08 1.1 2.0 MOR   1.1
94 OCT 20 2022  3.74 38 49.32 122 47.06  3.04 18   .08  .3  .5 GEY   1.4
94 OCT 20 2243 19.15 38 50.38 122 50.00  0.24  7   .06  .5 1.3 GEY   1.0
94 OCT 20 2322 24.51 36 39.82 121 16.88  4.72 47 1 .08  .2  .4 STN   1.9
94 OCT 20 2334  9.88 39 18.53 123 13.66  1.98 16 2 .09  .3 2.9 MAA   1.6

94 OCT 20 2344 26.36 36 39.96 121 16.49  5.67 18   .13  .4 1.2 STN   1.3
94 OCT 20 2350 23.54 36 39.76 121 16.86  4.44 54 2 .08  .1  .4 STN   1.9
94 OCT 21  241 47.06 38 45.97 122 43.20  1.63 11   .06  .3  .5 GEY   1.5
94 OCT 21  246  4.99 38 59.22 123  2.42  5.15 10 2 .09  .5 1.2 MAA   1.4
94 OCT 21  418 20.59 40 22.09 125 24.51 23.69 18 2 .28 4.521.9 MEN - 2.9

94 OCT 21  753 24.36 37 22.97 118 23.08  8.13 16 3 .15  .4 1.0 OWV   1.2
94 OCT 21  936  0.14 39 18.64 123 13.81  1.24 15 2 .09  .3 2.0 MAA-  1.4
94 OCT 21 1032 41.97 38 50.24 122 47.69  0.83 12   .06  .3  .9 GEY   1.5
94 OCT 21 1037  0.93 37 27.89 118 49.88  7.93 14   .06  .9 1.1 MOR   1.0
94 OCT 21 1147 16.24 37 29.07 118 49.59  8.50 12   .06  .7 1.1 MOR   1.0

94 OCT 21 1211 19.23 37 31.56 118 26.92  8.15 16   .09  .4  .9 CHV   1.6
94 OCT 21 1316 25.67 36 51.70 121 35.50  6.37 66 1 .17  .2  .4 SJB   2.2
94 OCT 21 1324 47.34 36 51.81 121 35.55  6.43 35 2 .13  .3  .4 SJB   1.3
94 OCT 21 1328 34.71 37 38.76 118 52.31  8.87 16 1 .05  .4  .8 SMO   1.1
94 OCT 21 1354 17.83 38 41.90 119 44.63  4.78 19 2 .10  .9 5.0 WAK   2.3

94 OCT 21 1440 39.45 36 28.81 121  3.57  7.21 19 1 .06  .3  .6 BIT   1.2
94 OCT 21 1458 11.89 37 39.07 118 50.25 11.58  8   .05  .7 1.6 HCF   1.2
94 OCT 21 1525 11.96 37 38.41 118 51.71  8.71 20   .10  .4  .6 SMO   1.4
94 OCT 21 1625 19.83 37 38.45 118 51.66  8.50 24   .09  .3  .5 SMO   1.8
94 OCT 21 1644 18.28 38  2.96 118 55.37  5.90 10 2 .09 1.4 8.7 MOL - 1.8

94 OCT 21 1801 11.74 37 40.32 118 51.87  1.57 12   .15  .5  .6 DOM   1.3
94 OCT 21 1912 41.71 37 38.61 118 52.38  9.13 17   .06  .4  .6 SMO   1.6
94 OCT 21 1945 16.13 37 36.96 118 52.98  4.53 34   .12  .3  .4 SHE   3.1
94 OCT 21 1954 15.50 37 36.97 118 52.89  3.77 18   .20  .6  .9 SHE   1.4
94 OCT 21 2002 25.14 38 21.55 122 11.42  0.06 18 1 .35 1.0 2.3 GVL   1.9

94 OCT 21 2008 48.48 36 33.06 121  8.38  3.28  8   .03  .4 1.0 PIN    .9
94 OCT 21 2046  7.82 39 18.59 123 13.80  0.09 12 1 .09  .3 1.3 MAA-  1.6
94 OCT 21 2153 30.39 37 36.80 118 52.94  4.11 35   .12  .3  .4 SHE   3.3
94 OCT 21 2158 34.33 36 33.32 121  6.44  9.57  9 1 .07  .5 1.6 BVL    .8
94 OCT 21 2312 58.17 37 55.81 122 17.71  8.69 31   .19  .4  .8 HAY   1.7

--ORIGIN TIME (UT)-- -LAT N-- --LON W-- DEPTH  N N RMS ERH ERZ       DUR
YR MON DA HRMN  SEC  DEG MIN  DEG  MIN    KM  RD S SEC  KM  KM REMKS MAG

94 OCT 21 2330 13.89 37 36.89 118 52.89  4.74 35   .12  .3  .4 SHE   2.8
94 OCT 21 2348 43.55 36  2.42 120 35.50  1.99  9   .09  .5 1.5 SLA   1.2
94 OCT 22   16 59.13 37 36.99 118 52.89  4.54 24   .11  .3  .5 SHE   2.0
94 OCT 22   18 34.99 37 36.93 118 52.42  5.40 13   .09  .5  .7 SMO   1.2
94 OCT 22   58  7.17 37 36.94 118 52.90  4.63 31   .12  .3  .4 SHE   2.4

94 OCT 22  100 25.24 37 37.26 118 52.61  5.81 15   .13  .4  .8 SMO   1.4
94 OCT 22  254 28.32 37 36.82 118 52.66  4.93 20   .09  .4  .5 SHE   1.6
94 OCT 22  321 47.76 36  5.85 120  4.38  4.99 10 1 .10  .9 1.8 COA   1.8
94 OCT 22  334  1.50 37 38.66 118 51.78  7.82  8   .08  .7 1.6 SMO   1.0
94 OCT 22  408 39.37 37 34.60 118 50.25  8.29 16   .08  .5  .8 MOR   1.1

94 OCT 22  417 45.02 37 38.01 121 41.04  6.71 17   .14  .4  .6 HAM   1.0
94 OCT 22  419 40.19 37 45.70 122 34.74  8.33  7   .07  .4 1.9 SFP   2.4
94 OCT 22  419 58.47 37 34.12 118 42.49 15.51  9   .06  .5 1.6 CAS   1.2
94 OCT 22  423 26.25 37 37.05 118 52.22  5.94 14   .11  .4  .8 SMO   1.2
94 OCT 22  454  5.20 36 36.98 121  8.95  8.21 27   .10  .3  .7 BVL   1.5

94 OCT 22  500 10.87 38 44.34 119 42.14  0.63 28   .18  .8 4.1 WAK * 3.0
94 OCT 22  533 54.29 40 13.42 124 10.47 12.46  9   .12  .9  .8 MEN   1.6
94 OCT 22  608  3.27 40 45.75 125  9.92 22.20 16 1 .20 4.813.5 DEL - 2.4
94 OCT 22  611 55.24 37 36.70 118 52.91  4.75 29   .11  .3  .4 SHE   2.1
94 OCT 22  625 38.73 38 46.32 122 43.90  2.13  9   .03  .3  .4 GEY   1.2

94 OCT 22  627 37.79 37 36.71 118 53.01  4.70 33   .12  .3  .3 SHE   2.6
94 OCT 22  628 56.67 37 36.71 118 52.88  4.63 30   .09  .3  .3 SHE   2.4
94 OCT 22  646 46.48 37 36.76 118 52.94  4.62 33   .12  .3  .4 SHE   2.4
94 OCT 22  656 18.78 37 36.74 118 52.64  5.50 20   .11  .3  .6 SHE   1.4
94 OCT 22  727 26.57 37 36.79 118 52.65  5.07 22   .09  .3  .5 SHE   1.6

94 OCT 22  753 36.43 36 44.12 121 23.85  6.99 25   .17  .4  .8 SJB   1.2
94 OCT 22  805 13.44 36 43.73 121 23.99  6.71 49   .21  .3  .8 SJB   1.9
94 OCT 22  847 38.10 36 34.24 121  6.82  9.24 16   .08  .3  .8 BVL   1.0
94 OCT 22  933 21.16 36 43.79 121 23.90  5.92 34   .15  .3  .6 SJB   1.3
94 OCT 22  941  6.39 38 49.41 122 48.71  2.17 10   .03  .3  .5 GEY   1.2

94 OCT 22 1045  6.99 38 50.30 122 28.19  7.12  7   .09  .7  .6 GVL   1.0
94 OCT 22 1053 23.02 37 18.79 119 27.61 28.02 10 1 .08 1.4 3.7 KAI   2.0
94 OCT 22 1119  5.24 40 21.52 124 32.94 16.53  9   .08 2.6  .6 MEN   1.8
94 OCT 22 1242 21.72 38 46.65 122 43.10  2.67  8   .03  .4  .5 GEY   1.1
94 OCT 22 1253 57.36 40 15.62 124 49.28 15.27  7 1 .07 4.3 1.3 MEN   1.8

94 OCT 22 1446 32.81 38 37.80 119 40.59  0.00 18   .19 1.0 2.2 WAK * 3.0
94 OCT 22 1727 36.09 39 23.68 123 15.78  6.57 11   .06  .3  .9 MAA   1.7
94 OCT 22 1907 48.45 41 10.28 125 39.12  1.75 14   .15 5.914.6 PON -
94 OCT 22 2019 11.95 40 18.07 124 33.35 17.65  7 1 .12 2.5 1.0 MEN   1.7
94 OCT 22 2159 22.64 37  8.71 121 32.17  8.28 26   .06  .3  .6 CYN   1.2

94 OCT 23   20  7.11 37 36.80 118 52.65  4.20  7   .04  .6  .9 SHE   1.0
94 OCT 23  133 36.90 38 48.60 119 42.32  0.40 13   .17 7.0 3.6 WAK * 2.9
94 OCT 23  305 50.63 38 46.74 122 44.70  3.64  8   .03  .3  .8 GEY   1.3
94 OCT 23  334 28.82 40 13.72 125 23.31 18.89  9 2 .3114.722.3 MEN-  3.2
94 OCT 23  423 32.74 35 55.74 120 28.53  5.01 13   .04  .4  .6 MID   1.0

--ORIGIN TIME (UT)-- -LAT N-- --LON W-- DEPTH  N N RMS ERH ERZ       DUR
YR MON DA HRMN  SEC  DEG MIN  DEG  MIN    KM  RD S SEC  KM  KM REMKS MAG

94 OCT 23  503 23.74 39 39.32 123  6.12  0.02  8 1 .18  .8 2.6 BAR * 1.3
94 OCT 23  507 11.43 36  9.03 121 36.68  7.21 25   .07  .3  .6 SUR   1.6
94 OCT 23  512 17.46 38 50.24 122 48.23  2.04 10   .05  .3  .8 GEY   1.3
94 OCT 23  716  8.10 38 49.18 122 47.87  5.04 26   .06  .2  .5 GEY   2.4
94 OCT 23  747 17.96 38 50.05 122 49.42  1.63 10   .03  .3 1.1 GEY   1.5

94 OCT 23  827 37.08 37 19.53 119 59.94 17.16  9 2 .24  .8 2.8 KAI   1.5
94 OCT 23  903  3.56 37 36.83 118 52.59  5.09 13   .11  .5  .8 SHE   1.4
94 OCT 23  905 20.40 40 22.96 125 28.28 22.55 12 1 .21 6.215.9 MEN-- 3.2
94 OCT 23 1054 16.41 37 37.10 118 52.75  4.73 23   .10  .3  .5 SMO   1.9
94 OCT 23 1114 38.64 37 42.78 122 32.00  8.39 31   .17  .5 1.0 SFP   2.1

94 OCT 23 1204 54.35 40 30.39 123 26.74 28.24 14   .06  .4  .9 EUR   2.1
94 OCT 23 1223 38.47 36 38.96 121  6.01 11.01 19   .19  .6 1.0 PAN   1.0
94 OCT 23 1358  3.04 37 37.04 118 52.52  4.34 17   .13  .4  .7 SMO   1.4
94 OCT 23 1422 12.64 37 28.74 118 53.18  6.80 17 1 .06  .7  .6 MOR   1.1
94 OCT 23 1651  2.38 40  3.07 122 53.73  7.71 19 1 .29  .6 1.7 KLA   2.0

94 OCT 23 1902  1.19 37 27.67 118 50.58  9.19 17   .05  .8 1.3 MOR   1.2
94 OCT 23 1944 10.30 37 32.25 118 50.78 10.05 30   .08  .3  .6 MOR   1.0
94 OCT 23 1944 14.74 37 32.23 118 51.02  9.39 26 1 .11  .4  .8 MOR   2.7
94 OCT 23 2008 11.48 38 45.94 122 44.32  1.40  9   .09  .3  .8 GEY   1.4
94 OCT 23 2034 25.04 36 53.52 121 37.66  6.74106 3 .18  .2  .4 SJB   3.1

94 OCT 23 2151  1.31 36 32.71 121  8.40  8.05 12 1 .05  .4  .9 PIN    .8
94 OCT 23 2252 19.59 40 18.10 124 23.95 14.50  9 1 .16 1.0  .8 MEN   1.3
94 OCT 23 2253 22.19 36 42.58 120 50.59  0.84  9   .07 1.1 6.4 ORT   1.4
94 OCT 23 2339 29.82 36 59.27 121 37.43  6.43 14   .07  .4  .6 SAR   1.1
94 OCT 24   33 25.68 40 46.98 122 10.36 13.67 14   .16  .6 1.4 SHA   1.9

94 OCT 24   35 48.70 38 52.85 119 46.66  1.00 14   .12 5.8 4.7 WAK * 2.6
94 OCT 24  105 18.52 37 37.14 118 52.75  4.80 25   .09  .3  .4 SMO   1.9
94 OCT 24  120 35.15 40 25.30 125 25.66 25.98 36 2 .29 1.522.1 MEN-- 3.4
94 OCT 24  159 29.68 37 43.94 122  7.79  5.15116 3 .18  .2  .3 HAY   2.8
94 OCT 24  225 43.09 37 32.71 118 58.57  4.38 15 4 .14  .7 3.0 SIL   1.1

94 OCT 24  256 53.43 37 37.01 118 52.18  6.05 11   .09  .5  .8 SMO   1.1
94 OCT 24  305  0.47 38 47.14 119 40.15  0.00 21   .17 2.5 1.4 WAK * 3.2
94 OCT 24  620 22.95 40  7.00 123 46.67 22.50 10 2 .18 1.3  .8 MEN
94 OCT 24  735 33.45 40 23.69 124 42.69 16.46  9 3 .13 1.2 1.3 MEN   1.9
94 OCT 24  909 55.12 38 45.79 122 43.40  1.60  8 1 .15  .6  .6 GEY   1.0

94 OCT 24  928 17.70 38 45.03 122 42.05  1.52 13   .09  .3  .8 NAP   1.3
94 OCT 24 1108 15.50 37 37.98 118 56.18  0.02 12   .17  .4  .6 SMO * 1.5
94 OCT 24 1109 24.35 37 38.94 118 56.88  7.81 10   .07 1.1 1.5 SMO   1.3
94 OCT 24 1110 50.41 37 38.59 118 56.70  8.17 15   .12  .9 1.4 SMO   1.3
94 OCT 24 1112 11.63 37 38.75 118 55.80  7.36 11   .14  .8 1.0 SMO   1.6

94 OCT 24 1114 36.48 37 38.74 118 56.89  7.73 16 1 .06  .4  .9 SMO   1.2
94 OCT 24 1117 49.67 36 51.71 121 35.77  6.58 48   .17  .3  .5 SJB   1.5
94 OCT 24 1122 35.82 37 39.06 118 56.65  8.46 20 1 .10  .4  .7 SMO   1.4
94 OCT 24 1127 43.83 37 38.74 118 56.97  7.39 32 2 .12  .3  .4 SMO   2.1
94 OCT 24 1149 22.44 37 38.94 118 56.84  8.14 23 2 .11  .4  .6 SMO   1.7

--ORIGIN TIME (UT)-- -LAT N-- --LON W-- DEPTH  N N RMS ERH ERZ       DUR
YR MON DA HRMN  SEC  DEG MIN  DEG  MIN    KM  RD S SEC  KM  KM REMKS MAG

94 OCT 24 1157 39.84 37 38.13 118 56.91  5.68 12   .15  .7 1.3 SMO   1.0
94 OCT 24 1211 25.97 36  8.74 120  9.12  6.53 21   .12  .4 1.1 COA   1.9
94 OCT 24 1214 59.32 37 38.69 118 56.51  7.39 10   .07  .8 1.5 SMO   1.0
94 OCT 24 1230  8.02 37 38.99 118 56.74  8.90 20   .11  .5  .7 SMO   1.5
94 OCT 24 1230  8.59 37 37.80 118 57.15  3.84  9   .11  .5 2.1 SMO   1.5

94 OCT 24 1310 43.66 37 43.83 122  7.98  3.81 50 1 .16  .2  .5 HAY   1.8
94 OCT 24 1320 33.22 37 38.78 118 56.68  8.08 24 1 .11  .4  .6 SMO   1.6
94 OCT 24 1322 13.64 37 46.11 118 50.04  1.56  7   .17 6.715.8 GLA - 1.3
94 OCT 24 1352 34.41 37 38.67 118 57.03  7.72 21 1 .09  .4  .6 SMO   1.7
94 OCT 24 1357  7.90 39 13.11 123 13.00  6.52 15 2 .09  .4 1.0 MAA   1.5

94 OCT 24 1409  8.31 38 47.63 122 46.30  1.65 15   .04  .2  .4 GEY   1.5
94 OCT 24 1443 13.64 37 36.78 118 54.36 19.94 10   .21 2.3 3.6 SHE   1.2
94 OCT 24 1458 58.98 36 20.68 120 31.74 15.00 11 2 .13  .6 1.1 COA   1.6
94 OCT 24 1516 58.26 36  1.45 121  2.31  8.25 12 2 .06  .3 3.6 ROB   1.5
94 OCT 24 1642 37.11 37 38.41 118 56.91  6.92 11   .08  .6 1.1 SMO   1.0

94 OCT 24 1730  0.67 38 47.47 119 44.98  0.00 21   .15  .9 1.4 WAK * 2.9
94 OCT 24 1824 36.02 37 38.78 118 56.70  7.68 21   .09  .4  .6 SMO   1.9
94 OCT 24 1921 33.11 38 46.57 119 53.93  0.08 11   .17 9.4 2.7 WAK * 2.6
94 OCT 24 2015 28.50 38 50.36 122 49.56  2.30  7   .02  .4  .8 GEY   1.2
94 OCT 24 2023  6.54 37 38.07 118 56.46  8.09 13   .14  .8 1.4 SMO   1.3

94 OCT 24 2126 59.58 38 46.69 122 45.35  1.04  9   .03  .2  .8 GEY   1.5
94 OCT 24 2210 45.27 37 38.45 118 56.88  7.65 10   .05  .5 1.0 SMO   1.3
94 OCT 24 2217 34.07 38 47.95 122 46.26  4.45 14   .06  .3  .6 GEY   1.5
94 OCT 24 2233 23.80 40 44.14 123 15.06 34.34 13   .14  .7 1.8 KLA   2.7
94 OCT 24 2312 25.67 37 38.33 118 56.79  7.31 11   .12  .6 1.2 SMO   1.0

94 OCT 24 2341  8.17 37 37.83 118 57.59  9.10 13   .07  .5 1.1 SMO   1.0
94 OCT 25   28 20.11 38 46.79 122 44.94  0.07 13   .06  .2  .7 GEY   1.8
94 OCT 25  319 12.94 37 38.67 118 56.88  7.45 14   .06  .5  .9 SMO   1.2
94 OCT 25  320  5.10 37 38.48 118 56.81  7.31 11   .06  .5 1.1 SMO   1.0
94 OCT 25  404 40.79 37 38.89 118 56.48  7.70 16   .09  .4  .8 SMO   1.6

94 OCT 25  507  6.54 37 38.67 118 56.63  7.44 12   .07  .6 1.2 SMO   1.2
94 OCT 25  534 19.21 35 37.23 118 17.58 10.22 10 1 .12  .6 1.0 WWF   1.3
94 OCT 25  612 56.38 37 38.55 118 56.75  7.32 19   .09  .4  .6 SMO   1.6
94 OCT 25  632 27.87 36 15.45 120 20.65  8.35 34   .11  .3  .3 COA   2.2
94 OCT 25  731 23.71 38 45.37 119 43.04  0.00 16   .17 3.5 2.0 WAK * 2.6

94 OCT 25  739 51.28 40 33.82 123 55.13 23.54 13   .13  .6 1.0 EUR   2.1
94 OCT 25  834 55.54 37 36.52 118 48.66  4.86  9   .03  .4  .8 HCF   1.0
94 OCT 25  837 41.33 36 13.18 120 24.21 12.70 20   .15  .5 1.0 COA   2.1
94 OCT 25  916 42.22 39 40.46 122  0.88 26.39 10 2 .10 1.3 2.5 SAC   1.5
94 OCT 25 1022 54.34 36 51.29 121 35.72  8.45 78   .19  .3  .4 SJB   2.5

94 OCT 25 1146 42.37 36 51.88 121 35.97  7.64 16   .07  .3  .6 SJB   1.0
94 OCT 25 1158  0.24 38 47.79 122 47.86  4.80 33   .11  .2  .5 GEY   2.1
94 OCT 25 1248 12.15 36 11.74 120 45.20  7.12 72   .25  .3  .6 BIT   3.1
94 OCT 25 1339 19.61 36 51.39 121 36.04  7.55 84   .21  .3  .4 SJB   2.6
94 OCT 25 1339 58.37 38 45.71 119 42.43  0.00 16   .09 2.0 1.4 WAK * 2.6

--ORIGIN TIME (UT)-- -LAT N-- --LON W-- DEPTH  N N RMS ERH ERZ       DUR
YR MON DA HRMN  SEC  DEG MIN  DEG  MIN    KM  RD S SEC  KM  KM REMKS MAG

94 OCT 25 1444  3.16 38 46.28 122 43.84  1.59 11   .05  .3  .5 GEY   1.5
94 OCT 25 1505 35.54 38 51.36 122 49.03  1.93 10   .04  .3 1.3 GEY   1.2
94 OCT 25 1612 11.92 37 38.59 118 56.87  7.95 13   .08  .5 1.0 SMO   1.2
94 OCT 25 1617 12.10 38 49.36 122 47.68  4.17 15   .06  .3  .6 GEY   1.5
94 OCT 25 1618  6.47 38 49.34 122 47.67  4.39  9 1 .02  .4  .6 GEY   1.1

94 OCT 25 1635 41.58 38 45.46 122 42.78  2.33  8   .03  .3  .5 GEY   1.1
94 OCT 25 1755 37.77 38 49.78 122 47.18  0.00  9   .16  .4 2.4 GEY * 1.3
94 OCT 25 1838 34.93 37 28.81 118 48.51  8.14 26 2 .08  .5  .8 MOR   1.4
94 OCT 25 2059 39.08 37 31.61 118 40.56 14.81 28   .08  .4 1.1 WCN   1.8
94 OCT 25 2114 39.03 40 43.16 123 57.92 19.78 23 2 .12  .3  .3 EUR   2.6

94 OCT 25 2136 40.72 38 48.21 119 43.61  0.11 46 3 .15  .5  .9 WAK   2.9
94 OCT 25 2208 19.02 37 39.12 118 51.95  9.47 10   .05  .7 1.5 DOM   1.0
94 OCT 25 2218 31.92 36 51.41 121 35.57  7.76 27 1 .15  .4  .5 SJB   1.0
94 OCT 25 2345 18.86 38 50.54 122 49.45  3.34  8   .06  .4 1.5 GEY   1.1
94 OCT 25 2345 23.51 38 50.43 122 49.24  2.96 15   .06  .3  .9 GEY-  1.9

94 OCT 26   15 34.25 40  9.10 125 20.15 19.20  8 2 .13 7.411.3 PON - 2.4
94 OCT 26   50 45.46 38 50.47 122 49.24  1.87 11   .08  .3  .8 GEY   1.3
94 OCT 26   51 24.20 38 51.05 122 49.46  1.23  8   .11  .6 1.4 GEY   1.3
94 OCT 26  215 47.26 38 50.20 122 49.34  3.68  7 1 .03  .4 1.7 GEY   1.1
94 OCT 26  323 25.07 38 50.40 122 49.10  4.15 46 1 .11  .2  .5 GEY   2.6

94 OCT 26  323 25.44 38 49.43 122 49.58  2.26 29   .24  .6 2.8 GEY   2.6
94 OCT 26  457 38.51 37 32.48 118 50.78 10.00 34 3 .10  .3  .5 MOR   2.5
94 OCT 26  523 29.39 36 15.11 120 18.61 10.12  7 1 .08  .9  .5 COA   1.7
94 OCT 26  552 27.49 39 18.65 120 35.54 20.81 15 2 .09 1.0 1.5 WAK   2.2
94 OCT 26  602 56.19 39 57.78 124 26.07  5.06  7   .08 2.0 1.9 PON   1.6

94 OCT 26  614 32.96 37 38.24 118 54.66  3.84  8   .06  .9  .6 SMO   1.2
94 OCT 26  619  4.69 37 39.52 118 54.03  6.69 14   .09  .5  .8 DOM   1.4
94 OCT 26  620 20.01 37 39.44 118 53.95  6.67  9   .09 1.0 1.8 DOM   1.4
94 OCT 26  631 38.52 37 39.60 118 54.02  5.28 14   .06  .4  .6 DOM   1.2
94 OCT 26  736 35.84 37 37.66 120  2.09 24.86  8   .10  .7  .8 YOS   1.8

94 OCT 26  934 45.13 37 36.93 118 51.74  4.91 12   .20  .8 1.4 SMO   1.0
94 OCT 26  951  3.33 37 38.00 118 52.25 11.23 15   .10 1.1 1.2 SMO   1.1
94 OCT 26  954 26.84 37 37.13 118 55.20  6.96 12   .10  .6 1.3 SHE   1.0
94 OCT 26 1042 32.94 37 31.96 118 49.46  9.28 18   .09  .5  .9 MOR   1.3
94 OCT 26 1300 44.18 38 45.72 122 42.65  4.99 31 1 .08  .2  .4 GEY   1.7

94 OCT 26 1446 21.84 36 44.38 121 19.98  8.62 43   .10  .2  .4 PAI   2.2
94 OCT 26 1522 30.34 36 54.17 121 37.81  5.19 29   .14  .3  .5 SJB   1.6
94 OCT 26 1543 47.89 37 38.63 118 56.53  5.64 10   .04  .4  .9 SMO   1.0
94 OCT 26 2050  8.67 37 39.01 118 54.15  4.75 10   .06  .6  .9 DOM   1.2
94 OCT 26 2139 31.25 37 38.26 118 56.46  8.00 13   .11  .7 1.2 SMO   1.1

94 OCT 26 2220 15.21 38 48.22 122 47.93  1.75 33   .12  .2  .4 GEY   2.6
94 OCT 26 2248 55.18 38 44.43 119 42.89  0.01 23   .13  .9 1.3 WAK * 2.9
94 OCT 27  129  6.76 37  5.52 121 48.79  8.84 19   .07  .3  .6 LOM   1.6
94 OCT 27  136 45.41 38 48.13 122 48.11  2.12  8   .01  .3  .5 GEY   1.3
94 OCT 27  216 46.83 40 16.84 121 20.91  7.16  9   .05  .9 1.8 ALM   1.7

--ORIGIN TIME (UT)-- -LAT N-- --LON W-- DEPTH  N N RMS ERH ERZ       DUR
YR MON DA HRMN  SEC  DEG MIN  DEG  MIN    KM  RD S SEC  KM  KM REMKS MAG

94 OCT 27  311 57.22 37 35.62 119  4.82 11.50 21   .13  .8  .8 SIL   1.9
94 OCT 27  529 47.64 38 49.51 122 47.56  2.76  7   .01  .4  .7 GEY   1.0
94 OCT 27  639 57.10 38 50.30 122 48.87  2.16 10   .05  .3  .8 GEY   1.3

TABLE 2.
Data from National Earthquake Information Center (NEIC)

UTC TIME    LAT     LONG    DEP GS MAGS  SD STA  REGION AND COMMENTS
HRMNSEC                         MB  Msz     USED
-------------------------------------------------------------------------------
OCT 17
011156.7? 33.76 S  71.82 W  33N         0.7   8 NEAR COAST-CENTRAL CHILE. MD 3.
032321.4* 27.555S  71.368W  33N         1.1  14 NEAR COAST-NORTHERN CHILE.
        Felt (III) at Caldera, Chanaral, Copiapo and Huasco.
092224.3* 35.684N 140.237E  57?         0.4   8 NEAR EAST COAST-HONSHU, JAPAN
094420.6* 43.873N 146.960E  33N 4.5     0.7  14 KURIL ISLANDS
141203.0  63.964N 146.145W  10G         1.2  63 CENTRAL ALASKA. ML 4.0 (AEIC).
170320.0  43.635N 146.943E  33N 4.6     0.8  32 KURIL ISLANDS
230357.7% 33.801S  71.112W  60G         0.3  11 NEAR COAST-CENTRAL CHILE. MD 3.

OCT 18
020337.9& 65.120N 150.410W   2               27 NORTHERN ALASKA. <AEIC>. ML 2.7
030735.8  13.203N  89.304W  80  5.2     1.0 122 EL SALVADOR. Felt (V) at San
                                                Salvador.
063418.3* 33.335S  70.341W 100G         0.9  13 CHILE-ARGENTINA BORDER REGION.
        MD 4.2 (SAN). Felt (IV) at Santiago, Chile.
085648.7* 43.633N 147.777E  33N 4.4     1.2  17 KURIL ISLANDS
112539.8* 16.402N  93.624W  33N 4.3     1.2  16 CHIAPAS, MEXICO
120634.4? 34.88 S  71.23 W  70G         0.3   8 NEAR COAST-CENTRAL CHILE
133615.8? 34.64 S  70.31 W   5G         0.1   7 CHILE-ARGENTINA BORDER REGION
152859.6? 43.77 N 148.11 E  33N 4.6     1.6  10 EAST OF KURIL ISLANDS
204501.8* 24.176N  94.568E  88? 4.6     0.7  11 MYANMAR-INDIA BORDER REGION
233121.9  18.931S 169.382E 200G 5.0     0.9  51 VANUATU ISLANDS

OCT 19
000300.7*  9.785N 126.157E 141? 4.9     0.8  22 MINDANAO, PHILIPPINE ISLANDS
033421.5  35.520N 117.463W   5G         0.8  48 CENTRAL CALIFORNIA. ML 3.5 (GS)
051102.6? 54.13 N 160.34 E  33N 4.4     0.6   9 NEAR EAST COAST-KAMCHATKA
094706.8*  5.035S 151.770E  33N 4.9     0.9  28 NEW BRITAIN REGION, P.N.G.
125409.7*  9.463S 159.878E   5G 5.1     1.2  18 SOLOMON ISLANDS. Felt (V) at
                                                Honiara.
125920.9* 33.472N 136.807E 393  4.7     0.7  37 NEAR S. COAST-WESTERN HONSHU
174437.7  62.290N 151.003W 100G         0.6  13 CENTRAL ALASKA
175523.2* 22.523N 118.949E  10G 4.5     1.0  14 TAIWAN REGION
180217.7* 43.832N 146.917E  33N 4.6     0.8  11 KURIL ISLANDS
182034.1* 43.725N 147.398E  33N 4.8     0.9  34 KURIL ISLANDS
200449.9  34.444N 116.481W   5G         0.9  24 SOUTHERN CALIFORNIA. ML 2.8
222852.4* 43.749N 147.226E  33N 4.9     0.8  16 KURIL ISLANDS

OCT 20
011516.6  39.132S  70.731W 163D 5.6     1.0 162 SOUTHERN ARGENTINA. Mw 6.2 (GS)
023723.6  35.221N 118.592W  10G         1.1  35 CENTRAL CALIFORNIA. ML 2.8 (GS)
025636.3* 32.547N 115.903W   5G         0.9   8 CALIF.-BAJA CALIF. BORDER ML 3.
040533.1* 21.815S 175.245W  33N 4.9 5.1 0.9  45 TONGA ISLANDS
050304.2?  3.11 S 146.57 E  33N 4.5     1.7   9 BISMARCK SEA
111048.0  61.095N 152.109W 121          0.8  53 SOUTHERN ALASKA
112149.9  62.129N 151.661W 104          0.8  71 CENTRAL ALASKA
123729.2* 43.526N 148.096E  33N 4.4     0.6  13 EAST OF KURIL ISLANDS
132604.6  21.384S  68.148W 123D 5.1     1.0  35 CHILE-BOLIVIA BORDER
143416.9? 34.29 S  71.05 W  70G         0.2   7 NEAR COAST-CENTRAL CHILE
183610.0? 32.00 S  70.09 W 110G         0.2   9 CHILE-ARGENTINA BORDER. MD 3.5
184541.2% 33.119S  70.128W  10G         0.6   6 CHILE-ARGENTINA BORDER. MD 3.3
194701.9? 43.27 N 146.31 E  33N 4.3     1.5  12 KURIL ISLANDS
200141.9* 43.907N 147.934E  33N 4.9     0.7  26 KURIL ISLANDS
201819.6? 32.62 S  70.27 W 110G         0.2  10 CHILE-ARGENTINA BORDER. MD 3.8

OCT 21
050617.9* 36.061N  69.620E  33N 5.2 5.4 0.5  23 HINDU KUSH REGION, AFGHANISTAN
093514.8? 45.26 N 148.11 E  33N 4.7     0.5  16 KURIL ISLANDS
112617.5* 36.375N  71.202E 230G 4.9     0.6  27 AFGHANISTAN-TAJIKISTAN BORD REG
114207.2  35.020N 118.988W   5G         0.9  64 CENTRAL CALIFORNIA. ML 3.3 (GS)
162354.3* 50.411N 129.832W  10G 4.4     0.9  27 VANCOUVER ISLAND REGION
222028.1* 50.569N 158.578E  33N 4.8     0.9  21 EAST OF KURIL ISLANDS

OCT 22
142637.6  32.312N 115.129W  10G         0.9  25 CALIF.-BAJA CALIF. BORDER
                                                REGION. ML 2.8 (GS).
154218.7* 33.057S  70.366W 100G         0.2  11 CHILE-ARGENTINA BORDER.
        MD 4.1 (SAN). Felt at Santiago, Chile.

OCT 23
001440.3* 43.789N 146.387E  33N 4.7     1.0  16 KURIL ISLANDS
010139.1* 43.616N 146.633E  33N 4.8     0.6  20 KURIL ISLANDS
020539.9  59.960N 152.648W 103D 4.2     0.6  16 SOUTHERN ALASKA
062227.2* 43.990N 147.425E  33N 4.7     0.7  17 KURIL ISLANDS
075741.0  43.277N 146.887E  33N 5.0 4.2 0.6  62 KURIL ISLANDS
153636.2* 42.786S  83.226W  10G 5.0     1.0  16 WEST CHILE RISE
154222.6* 12.043N  87.826W  33N 4.9     0.9  26 NEAR COAST-NICARAGUA
162034.1* 12.132N  87.756W  33N 4.8     0.9  23 NEAR COAST-NICARAGUA

OCT 24
002444.9  43.270N 147.976E  33N 5.3 4.7 0.7  65 KURIL ISLANDS
005027.4? 15.82 S 173.20 W  33N 4.6     0.7  21 TONGA ISLANDS
025237.6  35.775N 116.930W   5G         1.1  36 CENTRAL CALIFORNIA. ML 3.4 (GS)
031702.1  35.513N 117.475W   5G         0.9  32 CENTRAL CALIFORNIA. ML 3.0 (GS)
040437.6  52.321N 160.141E  33N 5.1 4.2 0.7  35 OFF EAST COAST-KAMCHATKA
044434.4? 16.58 S 172.85 W  33N 4.6     0.7  15 SAMOA ISLANDS REGION
072008.2* 43.767N 147.247E  33N 4.6     1.0  22 KURIL ISLANDS
151755.6  34.260N 116.444W   5G         0.9  27 SOUTHERN CALIFORNIA. ML 3.1
        (GS). Felt in the Joshua Tree area.
170142.0  55.113N 156.944W  33N 4.8     1.0  45 SOUTH OF ALASKA
192625.0* 43.103N 147.015E  33N 5.4 4.6 0.6  70 KURIL ISLANDS
212023.6  35.509N 117.471W   5G         0.6  30 CENTRAL CALIFORNIA. ML 3.0 (GS)

OCT 25
005435.0  36.370N  70.983E 247D 6.1     0.8  50 HINDU KUSH REGION, AFGHANISTAN.
        Mw 6.2 (GS), 5.9 (HRV). Felt (V) at Termiz, (IV) at Samarqand and (III)
        at Tashkent, Uzbekistan. Felt at Chitral, Dera Ismail Khan, Islamabad,
        Multan, Peshawar and Rawalpindi, Pakistan. Also felt at Amritsar,
        Srinagar and in other parts of northern India.

Notes for Table 1:
       Origin time in the list is in GMT, in the text and on maps
       it is in local time.
       N RD: is the number of readings used to locate the event.
       N S: is the number of S waves in N RD.
       RMS SEC: is the root mean squared residual misfit for the
                location is seconds, the lower the better, over 0.3
                to 0.5 seconds is getting bad, but this is machine,
                not hand timed, data.
       ERH: is the estimated horizontal error in kilometers.
       ERZ: is the estimated vertical error in kilometers.
       N FM: is the number of readings used to compute the magnitude.
       REMKS: obtuse region codes that denote the velocity model
              used to locate the event.
       DUR MAG: is the magnitude as determined from the duration of
                the seismograms, not the amplitude.  Sort of like
                going to echo canyon and measuring how loud your
                yell is by counting echos.
       FIG: denotes the figure/event number in the maps posted separately.

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

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                   California Division of Mines and Geology
                        Computer Bulletin Board System


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