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 -- THESE ARE 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 or reply to this
message.

Seismicity Report for Northern California,
the Nation, and the World for the week of
September 15 - 21  , 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  
  
    Another quiet week in the Bay Area with activity similar to that of
the previous week.  For the seven-day period ending at midnight on
Wednesday, September 21, 1994 the U.S. Geological Survey office in Menlo
Park recorded 19 earthquakes of magnitude one (M1) and greater within the
San Francisco Bay area shown in Figure 1. Of these, five were as large as
M2.0.  This total compares to 23 earthquakes during the previous seven-day
period (September 8 - 14), five of which were as large as M2. 
   As was the case last week, the Calaveras fault was comparatively quiet
with less than half a dozen earthquakes, two of which were as large as
M2.0.  the first of these was a M2.5 last Saturday morning on the central
Calaveras about 11 miles north of Morgan Hill (#2 in figure 1).  A second
M2.5 occurred early Wednesday about six miles northeast of Gilroy (#5/1).
   With one exception, the San Andreas was active only along the creeping
segment with half a dozen events occurring from San Juan Bautista on
south.  Two were as large as M2, a M2.0 Monday afternoon just two miles
west of San Juan Bautista and a M2.2 Wednesday afternoon about three miles
south of San Juan Bautista (#4/1).  The only other activity on the San
Andreas was a M1.2 last Thursday morning on the Peninsula segment about
two miles east of Pacifica (#1/1).
   Other earthquakes of note include a trio of M1's on the northern
Hayward fault beneath the Berkeley foothills (#3/1) and a M2.1 northeast
of Livermore (#6/1).
   
Northern & Central California
	
   Aftershocks to last week's M6.0 southeast of Lake Tahoe continued at a
fair clip well into the current reporting period.  As of Tuesday evening a
total of 268 aftershocks of magnitude 2 or larger had been recorded,
including eight that were magnitude 4 or larger.  Interestingly four the
M4 aftershocks occurred within a 12-hour period Monday evening/Tuesday
morning, over a week after the mainshock (#1/2).  While these late
aftershocks were felt as far north as Reno, NV and as far west as
Sacramento, CA they produced no injury or damage.  
   USGS seismologist Paul Reasenberg compared this aftershock sequence to
an "average California aftershock sequence.  His conclusions, edited for
brevity, follow: 
  
 "The aftershock sequence . . . appears to be close to typical
for a California aftershock sequence when all the earthquakes in
the sequence are considered. . . . The statistical model for the
sequence does not significantly depart from that found for the
average or "generic" California aftershock sequence. . . .
Furthermore, while the timing of the [late] aftershocks is
unusual, the overall earthquake sequence, including 268
earthquakes of magnitude 2 or larger, is not unusual in a
statistical sense."
   "To put this in an historical perspective, recall that the
aftershock sequence following the 1983 Coalinga, CA (M6.5)
earthquake included a relatively large number of large and 'late'
aftershocks.  In that sequence, eight magnitude 5.0 and larger
aftershocks occurred in the first 5 months.  Five of these
occurred more than 60 days after the mainshock."

   The only other area in northern California that was exceptionally
active was the Mendocino fracture zone, itself experiencing aftershocks to
a M7.0 earthquake on September 1.  The largest earthquake this week was a
M4.3 Tuesday evening that was located about 21 miles west of Petrolia
(#7/2).  It was followed by a pair of M3's within the next six hours.  
   
Long Valley Caldera

   During the past week only one earthquake as large as M2 occurred in the
Long Valley caldera area, a M2.6 last Thursday morning that was located
beneath the central resurgent dome, about five miles northeast of Mammoth
Lakes (#1/3).

USA Seismicity (September 13 - 21)

   According to data provided by the National Earthquake Information
Center (NEIC), a number of notable earthquakes occurred in the lower 48
states, outside of California, during the past week.  Western Colorado
experienced several aftershocks to the September 13th M4.7 in the
Telluride area (#1/4).  Largest of these was a M2.8 that was felt at
Telluride.  A cluster of four M3 earthquakes occurred in northeastern
Maine early last Friday morning (#2/4).  All were felt in the Springfield
area.  Two other earthquakes last Friday include a M3.2 in the western
Escalant Desert, southwest of Beryl, Utah (#3/4) and a M3.4 in southern
Nevada about 40 miles north of Las Vegas (#4/4).    
    
The Planet Earth  (September 13 - 21)

  The largest earthquake during the week was a Ms6.6 southwest of Taiwan
(#3/5).  One person was killed and at least 400 people were injured in
Guangdong Province, China and structural damage occurred in Fugian and
Guandong Provinces.  
  Moderate earthquakes during the week included a pair of M5's in Alaska,
the first a Ms5.1 on the Alaska Peninsula that was felt at Cold Bay, King
Cove, and Sand Point (#2/5) and a Mb5.2 on the central Aleutian Islands
that was felt at Adak (#5/5).   
    

Table 1. Northern & Central California Seismicity (M>2.0)

--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 SEP 15  707  3.79 38 45.16 119 44.61  0.01 43   .18  .6  .9 WAK * 3.3
94 SEP 15  708 58.25 38 44.97 119 47.48  0.00 27   .25 1.1 1.7 WAK * 2.9
94 SEP 15  720  0.17 38 46.30 119 44.51  0.02 25   .21 1.5 1.1 WAK * 2.9
94 SEP 15  731  1.20 39 33.87 123 21.97  0.02 14 1 .15  .3 2.0 MAA   1.5
94 SEP 15  754 52.51 38 44.78 119 38.60  5.87 58   .21  .5 1.2 WAK   3.6

94 SEP 15  833 38.37 38 46.49 119 39.77  1.23 29   .20 1.2 5.7 WAK * 3.2
94 SEP 15  955 38.94 38 43.19 119 46.41  0.00 23   .12  .6 1.3 WAK * 2.9
94 SEP 15 1056 34.70 38 44.48 119 43.88  0.00 29   .24  .9 1.8 WAK * 2.7
94 SEP 15 1057 18.56 38 48.06 122 46.11  0.56  8   .02  .3 1.0 GEY   1.1
94 SEP 15 1113 41.65 40 26.35 125 20.83 22.23 26 3 .38 9.221.2 MEN-- 2.8

94 SEP 15 1133 13.61 37 37.74 122 26.68  6.39 10 4 .20  .9 1.1 SFP   1.1
94 SEP 15 1142 56.97 38 46.99 122 43.13  3.04 25   .10  .2  .5 GEY   2.1
94 SEP 15 1157 50.80 38 44.36 119 45.79  0.71 44   .20  .7 2.6 WAK   3.2
94 SEP 15 1207 35.99 38 43.65 119 45.27  0.55 47   .23  .7 2.6 WAK   3.4
94 SEP 15 1228 41.24 37 40.21 118 52.88  4.32 35   .11  .3  .5 DOM   2.6

94 SEP 15 1233 52.20 38 58.37 123 19.68  1.75 11   .08  .4 9.9 PAR-- 1.7
94 SEP 15 1234 13.57 40 56.74 123 39.96 25.26 21 2 .12  .4  .6 EUR   2.4
94 SEP 15 1422  2.98 40 20.64 124 12.72  8.40 14 2 .15  .6  .5 MEN   1.5
94 SEP 15 1430  9.79 36 26.60 121  0.62  3.20 33 1 .09  .2  .4 BIT   1.7
94 SEP 15 1443  0.00 40 20.12 121 13.48  2.40 14   .07  .9 1.0 ALM   2.1

94 SEP 15 1514 44.05 38 46.73 119 42.77  0.03 27   .15  .8 1.1 WAK   2.9
94 SEP 15 1632  9.54 40 24.76 124 55.93  0.21 11   .14 5.9 8.9 MEN - 2.3
94 SEP 15 1633 55.50 38 45.79 119 34.32  1.02 25   .21 1.8 3.3 WAK   2.9
94 SEP 15 1713  9.37 38 47.80 119 44.25  0.01 36   .24  .9 1.7 WAK * 3.1
94 SEP 15 1848 56.98 39 39.41 119 58.97  0.11 15   .23 3.0 4.7 WAK * 2.7

94 SEP 15 1854 24.79 38 44.36 119 36.87  6.54 19   .10 1.3 1.7 WAK   2.8
94 SEP 15 1951 20.39 36 23.92 120 57.44  1.18  9 1 .04  .4  .9 BIT   1.9
94 SEP 15 1951 25.78 36 23.87 120 57.61  1.37 25   .15  .4 1.2 BIT   1.6
94 SEP 15 2025 40.39 38 44.70 119 41.65  0.00 22   .24  .9 1.9 WAK * 2.8
94 SEP 15 2034 20.23 36 26.80 121  0.34  0.03 10   .10 1.0 1.4 BIT * 1.2

94 SEP 15 2111 11.99 38 47.74 119 51.30  0.01 21   .17 5.4 1.6 WAK * 2.9
94 SEP 15 2352  9.64 38 49.92 119 47.12  0.02 14   .12 4.3 2.0 WAK * 2.9
94 SEP 16   35 31.15 37 38.47 121 40.38  9.33 13   .16  .5 1.2 HAM   1.2
94 SEP 16   43 20.42 35 35.68 119 51.66 13.54 10   .25 1.5 2.3 BAK   1.7
94 SEP 16   53  7.82 36  0.07 119 56.24 17.95 29   .21  .9 1.3 COA   2.2

94 SEP 16  110 19.07 38 43.49 119 44.98  1.49 24   .23 1.210.5 WAK * 3.0
94 SEP 16  131 56.38 35 36.02 119 51.53 14.80  7   .22 1.8 3.0 BAK   1.6
94 SEP 16  300  0.22 35 57.60 120 30.34  0.03 17   .13  .3  .4 MID   1.7
94 SEP 16  303 27.41 38 44.55 119 43.06  0.16 16   .12 1.2 1.6 WAK * 2.7
94 SEP 16  326 23.87 36 41.93 121 17.08 15.81 37   .14  .3  .5 PAI   1.8

94 SEP 16  352 50.29 38 46.82 119 45.08  0.43 31   .20 1.2 2.4 WAK   2.8
94 SEP 16  406 49.25 40 23.85 125  7.21  3.26 16 1 .42 4.4 6.6 MEN * 2.4
94 SEP 16  428 13.97 38 48.18 119 59.43  0.01 20   .26 5.5 2.2 WAK * 2.8
94 SEP 16  439 58.36 37 39.80 118 51.22  4.08 11   .08  .5  .8 DOM   1.0
94 SEP 16  454 28.55 35 44.79 118 23.31  8.29 11 1 .06  .5  .9 WWF   1.2

--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 SEP 16  500  0.28 35 58.13 120 28.40  0.03 23   .13  .3 1.2 MID   1.4
94 SEP 16  513 57.61 38 55.52 123 15.26  0.07 20   .06  .2 1.4 PAR   2.1
94 SEP 16  552 28.23 38 44.49 119 40.97  0.01 19   .11 1.6  .9 WAK * 2.7
94 SEP 16  556 39.94 36 32.74 121  7.86  5.70 41 1 .07  .2  .6 PIN   2.1
94 SEP 16  646 17.70 39 38.39 120 41.53 24.33 11   .06 2.8 2.1 WAK   2.3

94 SEP 16  700  0.15 35 56.46 120 31.00  1.33 25   .07  .2  .3 MID   1.5
94 SEP 16  722 43.01 38 46.38 119 45.90  0.00 29   .27 1.3 1.7 WAK * 2.8
94 SEP 16  757  8.47 38 42.39 119 47.11  0.00 31   .29 1.1 2.2 WAK * 2.8
94 SEP 16  815  1.08 40 48.27 122  9.52 17.29 15   .16  .8 1.4 SHA   1.7
94 SEP 16  822 47.90 36  3.01 120 35.72  7.37 35   .10  .3  .4 SLA   1.9

94 SEP 16  932 51.61 38 47.62 122 44.33  2.19 17   .11  .3  .7 GEY   1.7
94 SEP 16  940 17.21 38 47.69 122 44.52  1.24  9   .04  .2  .8 GEY   1.3
94 SEP 16  954 46.49 38 46.13 119 44.69  0.00 64   .38  .8 1.5 WAK * 3.6
94 SEP 16 1012 36.07 40 35.43 124 10.91 20.39 14   .07  .5  .4 EUR   1.9
94 SEP 16 1024  1.77 38 44.26 119 42.66  4.21 12   .07 1.9 7.5 WAK - 2.7

94 SEP 16 1102 15.62 38 43.16 119 39.70  6.66 10   .09 7.4 4.2 WAK - 2.7
94 SEP 16 1611 13.00 38 47.39 119 48.10  0.10 10   .2613.0 3.7 WAK * 2.7
94 SEP 16 1630 55.12 38  1.34 118 13.60  5.80 19   .20 5.217.6 NEV - 2.3
94 SEP 16 1725 38.63 38 45.36 119 45.41  0.00 28   .20  .9 1.7 WAK * 2.9
94 SEP 16 1917 17.33 38 48.31 119 42.91  0.00 23   .20  .9 1.4 WAK * 2.6

94 SEP 16 1955 46.77 38 45.63 119 37.96  0.02 17   .14 1.7 1.3 WAK * 2.7
94 SEP 16 2007 41.87 37 38.57 118 54.13 11.05 10   .07  .7 1.7 SMO   1.0
94 SEP 16 2028 10.76 39 52.49 123 33.43  2.49  7   .08  .6 3.4 MAA   1.7
94 SEP 16 2124 50.86 38 45.63 119 45.12  0.32 10   .2012.9 4.5 WAK * 2.3
94 SEP 16 2128 11.70 38 49.24 122 47.85  4.62 19   .11  .3  .7 GEY   1.8

94 SEP 16 2133 36.85 37 40.24 118 52.37  4.32 12   .12  .6 1.2 DOM   1.7
94 SEP 16 2317 36.46 38 46.85 119 41.35  0.31 14   .13 2.6 2.3 WAK * 2.6
94 SEP 17  114 13.40 36 23.51 120 20.98  7.99 21   .16 1.0  .6 COA   2.1
94 SEP 17  146 25.17 38 49.20 122 47.86  4.29 20   .12  .3  .7 GEY   1.9
94 SEP 17  149 59.82 38 49.33 122 47.78  3.89  8   .03  .3  .8 GEY   1.3

94 SEP 17  239 59.60 37 38.53 118 54.23  2.71  8   .11  .6  .5 SMO   1.0
94 SEP 17  259 13.86 38 43.32 119 46.25  0.00 62   .30  .7 1.3 WAK * 3.7
94 SEP 17  428 39.07 38 47.98 119 43.36  0.00 19   .25 1.6 1.4 WAK * 2.8
94 SEP 17  623 49.03 38 45.89 119 43.48  0.41 25   .25 1.2 3.5 WAK   2.9
94 SEP 17  630 55.93 35 58.93 118 20.86 14.09 15   .09  .4 1.2 WWF   2.6

94 SEP 17  721 27.81 40 19.69 124 32.84 21.78  9   .31 7.2 1.5 MEN   2.9
94 SEP 17 1050 35.64 38 47.67 122 48.42  4.29  8   .01  .3  .8 GEY   1.1
94 SEP 17 1056  4.02 38 48.19 119 42.44  0.02 22   .16 1.5  .9 WAK * 3.0
94 SEP 17 1236 18.35 38 43.93 119 44.15  1.26 63   .23  .5 1.6 WAK   3.8
94 SEP 17 1409 26.36 37 36.78 118 53.63  8.29 14   .09  .5 1.0 SHE   1.4

94 SEP 17 1618 41.31 38 47.95 119 42.16  0.04 25   .19 1.5 1.3 WAK * 2.7
94 SEP 17 1621 52.16 37 37.00 118 53.80  8.51 12   .07  .7 1.2 SHE   1.0
94 SEP 17 1641  0.97 36 36.26 121  7.56  6.73 15 2 .08  .3 1.2 BVL    .8
94 SEP 17 1650  4.06 37 36.59 118 54.36  7.51 21   .11  .4  .5 SHE   1.6
94 SEP 17 1713 57.42 37 36.62 118 54.53  7.77 18 1 .14  .5  .7 SHE   1.3

--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 SEP 17 1715  8.01 38 44.51 119 42.25  0.04 33   .24 1.0 1.4 WAK * 3.0
94 SEP 17 1730 18.86 38 44.63 119 42.47  0.00 31   .20 1.1 1.0 WAK * 3.1
94 SEP 17 1757  1.52 37 17.19 121 39.75  6.17108 3 .13  .1  .3 SFL   2.4
94 SEP 17 1758 10.22 40 23.32 124 36.11 11.20 11 1 .13 1.6  .7 MEN   1.7
94 SEP 17 1826 27.90 38 47.73 122 46.14  1.65  8   .03  .3  .7 GEY   1.2

94 SEP 17 1827  2.76 37 51.09 122 14.28  5.51 32 3 .18  .3  .8 HAY   1.7
94 SEP 17 1854  8.09 36 59.23 121 38.38  2.99 35   .16  .3 1.0 SAR   1.4
94 SEP 17 1925  3.73 40 17.09 124  4.75 31.38 15 1 .12  .6 1.1 MEN   1.7
94 SEP 17 2000 12.36 40 27.82 121 33.22  4.50 24   .14  .3  .6 LAS   2.3
94 SEP 17 2008  2.64 40 27.77 121 33.49  4.26 11 1 .08  .4  .7 LAS   1.4

94 SEP 17 2141 58.26 37 30.04 118 47.90 12.96  7   .02 1.4 3.3 MOR   1.1
94 SEP 17 2307 47.30 38 43.74 119 44.75  0.00 26   .23 1.0 1.9 WAK * 2.9
94 SEP 18   12 33.41 37 37.01 118 53.79  8.60  9   .06  .8 1.4 SHE   1.0
94 SEP 18  111 23.69 37 34.25 118 51.27  7.17 20   .08  .3  .6 MOR   1.8
94 SEP 18  117 49.83 38 50.87 122 49.16  4.36 10   .07  .4 1.4 GEY   1.2

94 SEP 18  208 25.80 36 28.44 121  2.42  2.95 19 1 .08  .3  .6 BIT   1.3
94 SEP 18  307 20.43 38 47.61 122 46.25  0.04  7   .06  .3 2.6 GEY * 1.1
94 SEP 18  401 42.37 40 17.62 124 24.96 17.74 22 1 .10  .7  .2 MEN   2.5
94 SEP 18  514 59.08 38 46.96 119 40.78  2.05 14   .2010.7 6.9 WAK * 2.9
94 SEP 18  617 19.32 40  1.85 122 51.32  8.11  8 2 .22 1.3 5.2 KLA   2.3

94 SEP 18  720 54.82 37 54.81 122 17.22  5.66 51 4 .18  .2  .5 HAY   2.0
94 SEP 18  737  2.21 38 49.63 119 46.15  0.53 16   .13 5.1 2.4 WAK * 2.5
94 SEP 18  820 18.87 38 47.83 120  3.90  0.00 18   .21 5.7 2.8 WAK * 2.8
94 SEP 18  856  7.56 38 47.92 119 51.71  0.03 10   .13 4.6 1.9 WAK * 2.4
94 SEP 18  921 47.05 40 16.61 124 36.54 18.32  9   .12 3.1 1.0 MEN   1.5

94 SEP 18 1113 54.21 38 48.51 119 44.41  0.00 31   .20  .8 1.3 WAK * 2.9
94 SEP 18 1142 23.89 36 52.69 121 24.84  9.00 77 2 .17  .2  .4 HOL   1.7
94 SEP 18 1245 21.34 37 36.74 118 46.48  8.57 11   .01 2.7 2.2 EMO   1.1
94 SEP 18 1309  0.88 37 52.34 122 14.67 10.15 20 1 .20  .5 1.0 HAY   1.0
94 SEP 18 1346 27.70 38 46.56 119 53.00  2.50 16   .17 7.7 5.5 WAK * 2.7

94 SEP 18 1407 17.62 40 19.99 125 54.59 12.25 12 2 .5731.435.3 MEN - 2.5
94 SEP 18 1433 34.52 37 39.35 119 24.98  7.00  9 1 .21 1.016.1 KAI - 1.9
94 SEP 18 1621  0.28 38 51.54 119 41.97  0.09 11   .08 6.6 1.4 WAK * 2.8
94 SEP 18 1705  4.50 36 52.78 121 24.92  5.41 10 1 .06  .4 1.6 HOL   1.4
94 SEP 18 1734 28.90 38 49.84 122 46.48  0.42  8   .13  .5 1.6 GEY   1.5

94 SEP 18 1734 29.31 38 49.52 122 46.82  2.81 11 1 .04  .3  .6 GEY   1.4
94 SEP 18 1835 54.67 38 44.65 119 43.84  0.00 14   .16 7.6 2.3 WAK * 2.8
94 SEP 18 1909 58.04 37 37.02 118 53.88  7.40 13   .07  .5  .9 SHE   1.0
94 SEP 18 2027 41.99 37 32.18 118 52.88  5.72 18   .09  .4  .8 MOR   1.4
94 SEP 18 2123 14.55 38 45.34 119 43.98  0.08 38   .27  .9 1.6 WAK * 3.0

94 SEP 18 2312 30.52 40 46.96 121 50.79 17.22 11 1 .08  .7 1.1 SHA   1.6
94 SEP 18 2323 22.13 38 31.86 122 36.44  4.10 12 1 .08  .3  .6 NAP   1.3
94 SEP 19  211 32.95 38 31.56 122 37.89  1.11 10   .60 3.216.5 NAP   1.0
94 SEP 19  400 19.52 37 28.99 118 48.35  9.51 16   .09  .8 1.5 MOR   1.1
94 SEP 19  619 56.29 40 21.00 125 10.80  6.79 11 1 .4211.6 9.3 MEN * 2.3

--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 SEP 19  624 27.33 40 26.06 125 11.66 51.54  8 1 .5212.720.5 MEN * 2.8
94 SEP 19  651 55.12 38 22.91 122 23.80  6.76 22 2 .21  .5 1.1 NAP   1.8
94 SEP 19  652 52.82 38 44.10 119 54.95  0.80 12   .23 7.610.7 WAK * 2.6
94 SEP 19  725 28.54 38 43.78 119 38.53  0.10 41   .20  .7 1.2 WAK   3.7
94 SEP 19  758 14.25 38 44.66 119 38.20  2.38 51   .26  .7 1.9 WAK   3.2

94 SEP 19  957 38.97 38 45.04 119 44.64  0.00 24   .27 1.1 1.9 WAK * 2.9
94 SEP 19 1017 28.04 40 21.85 125  3.91  9.45 17 2 .25 1.7 1.5 MEN   2.3
94 SEP 19 1112 41.88 38 48.11 119 51.09  0.09 12   .11 3.9 1.4 WAK * 2.8
94 SEP 19 1240 59.49 38 49.40 122 45.27  0.96  8   .05  .3 1.1 GEY   1.1
94 SEP 19 1242 41.89 38 49.51 122 45.08  1.82 30   .14  .3  .8 GEY   2.2

94 SEP 19 1245  7.40 38 49.84 122 47.95  2.33 18   .08  .3  .6 GEY   1.8
94 SEP 19 1406  6.47 38 45.63 119 43.38  0.01 98   .32  .4  .7 WAK   3.8
94 SEP 19 1415 22.55 36  6.93 120 11.57  8.54 15   .10  .6 1.3 COA   1.8
94 SEP 19 1443 10.20 38 45.29 119 37.37  1.47 70 2 .18  .5 1.3 WAK   3.2
94 SEP 19 1536 25.05 38 42.63 119 45.70  8.84 21   .20 1.2 4.6 WAK   2.8

94 SEP 19 1719 28.01 38 49.72 122 45.25  1.38  8   .02  .3  .9 GEY   1.0
94 SEP 19 1759  8.67 38 46.86 119 44.29  0.01 25   .19 1.5 1.5 WAK * 2.9
94 SEP 19 1833 38.66 36 49.20 121 32.07  4.55 11   .10  .5  .7 SJB   1.3
94 SEP 19 2002 42.59 40 16.53 124 31.86 20.28  7   .08 2.1  .7 MEN   2.4
94 SEP 19 2203  6.99 36 50.74 121 34.74  5.52 27   .19  .4  .6 SJB   2.0

94 SEP 19 2216 57.25 37 36.42 118 47.65  4.36  9   .13  .6 1.8 HCF   1.3
94 SEP 20  137 27.50 38 51.20 119 51.16  0.02 10   .19 6.6 3.0 WAK * 2.7
94 SEP 20  223 30.95 38 44.06 119 38.77  0.31 51   .24  .6 1.6 WAK   3.2
94 SEP 20  317 47.83 38 46.49 119 33.46  0.02132   .50  .6  .8 WAK   4.0
94 SEP 20  337 21.09 38 44.32 119 40.14  0.01 61   .36  .8 1.4 WAK * 3.8

94 SEP 20  339 12.25 38 45.35 119 38.11  0.83 24   .21 1.5 2.9 WAK   3.1
94 SEP 20  345 13.36 38 44.90 119 39.07  0.37 59   .25  .7 1.6 WAK   3.6
94 SEP 20  354 32.91 35 59.55 120 32.48  5.45 10   .02  .6  .6 MID   1.6
94 SEP 20  517 19.08 38 45.32 119 38.00  1.31 78   .18  .3  .7 WAK   4.5
94 SEP 20  519 43.60 38 44.28 119 37.91  2.00 39   .17  .8 2.2 WAK   3.5

94 SEP 20  527  6.82 38 44.17 119 39.63  0.00 57   .56 1.3 2.0 WAK * 3.1
94 SEP 20  702 39.09 38 46.33 119 38.30  0.00 13   .10 1.9 1.4 WAK * 2.9
94 SEP 20  808 32.58 38 43.40 119 38.82  7.86 23   .16  .9 2.2 WAK   2.9
94 SEP 20  930  8.51 38 45.11 119 40.52  0.31 45   .24  .8 1.7 WAK   3.1
94 SEP 20 1002 11.92 38 46.62 119 48.10  0.20 14   .14 7.1 3.2 WAK * 2.9

94 SEP 20 1011 22.12 38 46.52 119 46.60  0.36 10   .1610.5 5.8 WAK * 3.2
94 SEP 20 1019 54.33 38 42.49 119 42.67  0.00 59   .36 1.0 1.6 WAK * 3.4
94 SEP 20 1024  5.70 38 43.89 119 43.74  0.00 28   .38 1.4 2.7 WAK * 3.4
94 SEP 20 1059 28.08 36 44.20 121 24.04  5.89 13   .18  .8 1.0 SJB   1.4
94 SEP 20 1240 41.28 38 45.29 119 59.39  0.11 14   .15 6.3 2.4 WAK * 3.0

94 SEP 20 1315 16.56 37 34.83 118 51.18  6.59 14   .09  .5 1.0 MOR   1.2
94 SEP 20 1538 36.55 38 44.33 119 38.73  1.95 65   .23  .5 1.2 WAK   4.4
94 SEP 20 1544  6.33 38 44.75 119 36.97  0.43 26   .25 1.2 2.6 WAK   3.1
94 SEP 20 1545 55.82 38 45.19 119 38.73  0.00 18   .15 3.3 1.3 WAK * 3.9
94 SEP 20 1546 35.24 38 41.64 119 39.74  0.02 51   .67 1.3 2.7 WAK * 3.7

--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 SEP 20 1552 16.74 38 45.96 119 48.10  0.58 11   .1711.7 5.2 WAK - 2.8
94 SEP 20 1726 15.79 38 43.50 119 41.22  0.00 38   .27 1.0 1.6 WAK * 3.0
94 SEP 20 1939  8.96 38 41.96 119 40.36  0.00 39   .32  .9 1.8 WAK * 3.1
94 SEP 20 2145 56.18 38 47.08 119 43.55  0.03 22   .23 1.4 1.2 WAK * 3.0
94 SEP 20 2223 23.98 37 30.89 118 48.10 13.35  8   .13 1.9 2.3 MOR   1.1

94 SEP 21   16 55.65 36 46.62 121 28.27 10.74 11   .16  .6 1.4 SJB   1.3
94 SEP 21  209  1.00 40 24.47 124 40.01 20.73 14   .16 2.4  .5 MEN   4.3
94 SEP 21  348 56.96 40 22.22 125  1.94  0.20 18   .31 7.212.2 MEN * 3.3
94 SEP 21  525 36.29 35 46.87 118  1.23  7.27  9   .06  .4 1.6 WWF   1.8
94 SEP 21  554 10.59 38 50.28 119 42.92  0.01 15   .21 2.0 1.8 WAK * 2.7

94 SEP 21  651 43.28 38 46.07 119 44.05  0.00 75   .49  .9 1.6 WAK * 3.7
94 SEP 21  806  9.64 37 37.64 118 53.26  4.89 14   .12  .5  .8 SMO   1.3
94 SEP 21  810 52.88 38 50.10 122 47.68  1.25 14   .09  .3  .7 GEY   1.4
94 SEP 21  816 41.71 40 16.52 125  3.81 23.39  9   .3522.030.1 MEN - 3.1
94 SEP 21  858 53.93 38 43.99 119 45.56  0.00 70   .58 1.0 2.0 WAK * 3.6

94 SEP 21  928 33.86 38 49.27 122 48.31  4.34  8   .01  .4  .9 GEY   1.2
94 SEP 21 1031 18.50 38 41.78 119 41.53  0.01 59   .40 1.0 1.8 WAK * 3.4
94 SEP 21 1105 35.43 38 45.14 119 47.14  0.14 13   .23 8.6 3.5 WAK * 2.6
94 SEP 21 1135 36.38 37  3.46 121 29.68  3.74 87   .17  .2  .6 CYS   2.5
94 SEP 21 1145  7.28 37  3.40 121 29.42  4.45 10   .03  .4  .9 CYS   1.1

94 SEP 21 1242 14.50 39 29.51 121 32.38  9.39 13   .10  .5 1.0 ORO   1.9
94 SEP 21 1312 18.57 38 47.27 122 43.09  2.04 16   .07  .2  .4 GEY   1.8
94 SEP 21 1329 32.43 37 45.71 121 43.32 11.73 47   .14  .3  .5 GRN   2.1
94 SEP 21 1337 10.90 38 47.81 122 44.82  0.15 12   .09  .3  .9 GEY   1.6
94 SEP 21 1537 32.81 38 43.34 119 44.57 11.71  8   .09 5.9 8.3 WAK - 2.6

94 SEP 21 1543 46.70 38 44.77 119 39.51  0.80 51   .23  .7 2.6 WAK   3.3
94 SEP 21 1654 49.19 38 48.28 122 48.10  1.74 15   .07  .3  .4 GEY   1.9
94 SEP 21 1759 43.07 37 49.73 121 46.75  9.62 21   .09  .4  .7 GRN   1.9
94 SEP 21 1847  6.22 38 45.22 119 40.09  0.43 70   .24  .6 1.4 WAK   3.8
94 SEP 21 1934 15.68 38 45.48 119 38.91  0.78 30   .19 1.1 4.1 WAK * 2.8

94 SEP 21 1942 49.26 38 44.36 119 48.38  5.67  7   .11 8.6 7.2 WAK - 2.6
94 SEP 21 2013 54.99 38 45.17 119 39.71  0.00 21   .17 1.5 1.2 WAK * 2.8
94 SEP 21 2146  0.66 36 48.19 121 32.07  7.24 47   .21  .3  .7 SJB   2.2
94 SEP 21 2357 55.73 38 45.22 119 40.00  5.99  7   .10 8.4 6.3 WAK - 2.9
94 SEP 22   40 39.62 38 48.14 122 48.24  0.63 22   .24  .5 2.0 GEY * 2.5

94 SEP 22   42  1.64 38 48.23 122 47.09  0.72  8   .01  .3 1.5 GEY   1.6
94 SEP 22   42 27.64 38 48.09 122 47.14  1.16  9   .10  .4  .6 GEY   1.3
94 SEP 22   44 27.50 38 47.89 122 46.75  0.11  8   .09  .3 2.2 GEY * 1.1
94 SEP 22  238 31.93 38 46.71 119 41.40  0.31 19   .15 4.4 1.9 WAK * 3.1
94 SEP 22  552 18.19 38 45.38 119 35.81  2.27  9   .1610.7 6.1 WAK - 2.7

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
-------------------------------------------------------------------------------
SEP 13
033553.3* 17.952N  67.175W  33N 4.6     1.7  15 MONA PASSAGE
061543.3  38.832N 119.636W   5G         1.0  79 CALIFORNIA-NEVADA BORDER. MD 4.1
184045.9? 44.68 N   9.86 E  10G         0.4   6 NORTHERN ITALY. ML 2.3 (LDG).
184145.6% 44.918N  10.010E  10G         0.5  13 NORTHERN ITALY. ML 2.8 (LDG).
193231.3*  1.382N 126.784E  33N 5.0     1.2  10 NORTHERN MOLUCCA SEA
212235.6  38.900N 119.609W   5G 3.9 3.5 1.0  98 CALIFORNIA-NEVADA BORDER. MD 4.1
235748.7?  8.26 S 117.86 E 207? 4.6     1.7   8 SUMBAWA REGION, INDONESIA

SEP 14
020632.4  36.446N 137.045E 265  4.5     0.9  57 EASTERN HONSHU, JAPAN
024102.7   5.369S 150.588E 198* 5.3     0.9  36 NEW BRITAIN REGION, P.N.G.
025526.1% 35.313N   4.067W  10G         1.1  12 STRAIT OF GIBRALTAR. mbLg 3.5
030633.1  38.206N 108.084W  10G         1.0  13 COLORADO. ML 2.8 (GS). Felt at
                                                Telluride.
032633.1? 34.71 S  70.26 W   5G         0.1   6 CHILE-ARGENTINA BORDER
040725.6? 38.21 N 108.31 W  10G         0.7   7 COLORADO. MD 2.0 (GM).
050211.8  31.187S  71.543W  33N 5.0     0.8  61 NEAR COAST OF CENTRAL CHILE. MD
        5.2 (SAN). Felt (IV) in the Canela-Salamanca area; (III) at La Ligua,
        Los Vilos and Santiago; (II) at Panquehue.
114518.0* 16.259S 173.206W  33N 5.0     1.0  42 TONGA ISLANDS
125447.2  16.343N  93.353W 165D 4.4     0.9  42 CHIAPAS, MEXICO

SEP 15
002719.1& 62.470N 151.100W  83               62 CENTRAL ALASKA. <AEIC>.
004527.3& 38.759N 119.732W   8  4.0         130 CALIFORNIA-NEVADA BORDER. ML 4.0
020519.6? 10.67 S 166.19 E  33N 4.9     0.9  17 SANTA CRUZ ISLANDS
035647.3? 34.16 S  70.35 W  10G         1.6   7 CHILE-ARGENTINA BORDER
040021.1& 60.590N 151.530W  60              104 KENAI PENINSULA, ALASKA. ML 4.2
070707.8* 23.917N 121.935E  33N 5.1 4.5 1.0  48 TAIWAN
070714.1  38.184N 108.035W  10G         1.0   9 COLORADO. ML 2.4 (GS).
070726.7* 46.865N 152.153E  33N 4.6     1.2  21 KURIL ISLANDS
112733.7& 59.340N 152.880W  96               27 SOUTHERN ALASKA. <AEIC>.
194822.2  54.430N 161.860W  40D 5.1 5.1 1.1 109 ALASKA PENINSULA. ML 4.9 (AEIC).
        Felt at Cold Bay, King Cove and Sand Point.
204309.3% 33.218S  70.351W   5G         0.3   7 CHILE-ARGENTINA BORDER. MD 3.8
213612.3& 62.290N 151.000W  71               90 CENTRAL ALASKA. <AEIC>.
223845.5? 33.79 S  70.33 W 110G         0.3   7 CHILE-ARGENTINA BORDER. MD 3.3
232357.3% 35.154N   4.145W  33N         0.8  13 STRAIT OF GIBRALTAR. mbLg 3.2

SEP 16
031855.5% 31.998N  35.646E  10G         0.7  20 DEAD SEA REGION. ML 4.1 (JER).
        Felt at Arad, Haifa, Jericho, Jerusalem and in the Tel Aviv area,
        Israel.
041815.0? 34.56 S  70.46 W 100G         1.0   7 CHILE-ARGENTINA BORDER. MD 3.4
042242.5& 45.300N  68.200W   5G               2 MAINE. <MACRO>. mbLg 3.6 (GS).
                                                Felt in the Springfield area.
062023.5* 22.526N 119.254E  33N 6.1 6.6 1.2  46 TAIWAN REGION. Mw 6.8 (GS), 6.7
        (HRV). Mo=8.6*10**18 Nm (PPT). One person was killed and at least 400
        people were injured in Guangdong Province, China. Structural damage
        occurred in Fujian and Guangdong Provinces, China. Felt (IV JMA) on Peng
-
        hu; (III JMA) at Chia-i, Kao-hsiung and Tai-nan; (II JMA) at Heng-chun,
        Hua-lien, Tai-chung and Tai-pei. 
070154.7& 45.300N  68.200W   5G               3 MAINE. <MACRO>. mbLg 3.6 (GS).
        Felt in the Springfield area. First and smaller of a double event.
        Magnitude determined from the larger event.
074011.9& 45.300N  68.200W   5G               2 MAINE. <MACRO>. mbLg 3.3 (GS).
                                                Felt in the Springfield area.
074406.8& 45.300N  68.200W   5G               2 MAINE. <MACRO>. mbLg 3.3 (GS).
                                                Felt in the Springfield area.
081558.1*  5.220S 102.628E  33N 5.1     0.9  10 SOUTHERN SUMATERA, INDONESIA
104822.2& 62.210N 148.530W  40               78 CENTRAL ALASKA. <AEIC>. ML 2.7
134513.3& 58.210N 151.770W  46               62 KODIAK ISLAND REGION.   ML 3.5
160318.7  37.779N 113.827W   5G         1.2  20 UTAH. ML 3.2 (GS).
211926.1*  2.746S  77.042W  96D 4.6     0.7  22 PERU-ECUADOR BORDER
213219.5  37.098N 115.247W   5G         0.9  27 SOUTHERN NEVADA. ML 3.4 (GS).

SEP 17
022442.5  37.953N  41.324E  33N 5.2     0.8  73 TURKEY. Felt at Batman, Siirt
                                                and in the Diyarbakir area.
032234.2? 34.43 S  70.77 W  90G         0.2   8 CHILE-ARGENTINA BORDER. MD 3.7
045619.3  16.172N  95.159W  33N 4.7 4.6 0.8  62 OAXACA, MEXICO
045629.3  36.432N   9.264E  33N 4.9     1.2  42 TUNISIA. Felt in Tunisia.
122215.4  32.167S  71.631W  33N 5.1 5.2 0.9  65 NEAR COAST OF CENTRAL CHILE.
        Felt at Llaillay, Los Andes, Petorca, Quillota, San Felipe, Santiago,
        Valparaiso and Vina del Mar.

SEP 19
193526.3* 52.461N 174.712W  64D 5.2     0.9  49 ANDREANOF ISLANDS, ALEUTIAN IS.
                                                Felt on Adak.

SEP 20
051717.9  38.799N 119.541W   5G 4.2     1.0  88 CALIFORNIA-NEVADA BORDER.
        ML 4.6 (GS). Felt in the Gardnerville, Nevada area.
061406.0* 16.265N  95.294W  33N 4.6     1.3  39 OAXACA, MEXICO
084526.0?  7.36 N 127.49 E  33N 5.4 5.3 0.9  12 PHILIPPINE ISLANDS REGION
153836.6  38.609N 119.645W   5G 4.5     1.0  65 CALIFORNIA_NEVADA BORDER.
        ML 4.5 (GS). Mo=7.1*10**15 Nm (BRK). Felt in the Gardnerville, NV area.
154055.2  38.823N 119.516W   5G 4.1     1.0  59 CALIFORNIA-NEVADA BORDER.
        ML 4.5 (GS). Mo=7.3*10**15 Nm (BRK). Felt in the Gardnerville, NV area.

SEP 21
020858.8  40.353N 124.782W  30G 4.5     0.9  88 NEAR COAST OF NORTHERN CALIF. 
        Felt in the Eureka area.

SEP 22
142434  Q 32.1  S  71.9  W  30  5.5     0.8  64 NEAR COAST OF CENTRAL CHILE
  

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.