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
   March 10 - 16, 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    
    
   Seismicity in the Bay Area increased noticeably from levels observed
during recent weeks.  During the seven-day period ending at midnight on
Wednesday, March 16, 1994 the U.S. Geological Survey office in Menlo Park
recorded 32 earthquakes of magnitude one (M1) and greater within the San
Francisco Bay area shown in Figure 1.  Ten earthquakes were as large as
M2, including a pair of M3's along the Calaveras fault.  This total
compares to 20 earthquakes during the previous seven-day period (March 3 -
 9), only one of which was as large as M2.  
   Both M3 earthquakes occurred along the Calaveras fault system.  The
first was a M3.1 Sunday afternoon on the central Calaveras about seven
miles north of Morgan Hill (#1 in Figure 1).  It was preceded by a M2.6
last Thursday morning.  The second M3 occurred as part of a cluster of
small earthquakes in the vicinity of the "step-over" region between the
northern Calaveras and southern Concord faults (#4/1).   The cluster of
earthquakes began with a M1.9 late Monday morning.  A M3.1 followed early
that afternoon with another five M1-2 shocks following in the next hour. 
The larger of these earthquakes were felt in the San Ramon and Danville
areas.  The only other notable earthquake on the Calaveras was a M2.3 six
miles east of Gilroy Tuesday evening (#8/1).  
   The San Andreas was slightly more active than usual with a pair of M2's
along the creeping segment.  The first of these was a M2.2 last Thursday
about ten miles southeast of Hollister (#2/1).  On Tuesday evening a M2.3
occurred about four miles northwest of San Juan Bautista (#7/1).  A pair
of similarly sized earthquakes also occurred along the Sargent fault
(#3,#9/1).  
   On the northern Peninsula a M2.1 event occurred Monday evening beneath
southern Pacifica, probably along one of the splay faults that run along
the northern side of Montara Mountain (#6/1).  Earthquakes of this size
are fairly common in this location.  The most recent example was a M2.4
this past December 29.
  The final earthquake of note was a M2.3 last Saturday beneath the
northwest edge of San Pablo Bay (#5/1).  A M1.8 occurred in this same
location the previous Monday, as did a trio of M3's in mid-September of
last year.  
              
Northern & Central California

   For the second week in a row northern California was the focus of most
of the activity in the state.  The week's largest earthquake occurred
here:  a M4.4 last Sunday that was located along the Mendocino fracture
zone about 43 miles west of Petrolia (#5/2).  A number of other events
occurred along the fracture zone west of the coast including a M2.9 on
Sunday (#7/2) and a M3.2 on Tuesday (#9/2).  Activity in the Coast Ranges
was largely limited to the Geysers, scene of a M3.4 Monday evening (#8/2),
and a M2.0 on the southern Maacama fault eight miles southwest of
Lakeport.  On Sunday a M3.3 occurred  beneath the northern Sacramento
Valley about 11 miles south of Red Bluff (#6/2).  With a focal depth of 26
km, this event occurred within a recently recognized seismogenic zone that
extends from Lake Shasta to Sutter Buttes and that is characterized by
unusually deep earthquakes in the range of 15 to 35 km deep.  
   Two areas in northeastern California that were active during the
previous week continued to experience activity into the early part of this
week.  The Redding area, scene of a trio of M3's on March 7 - 8,
experienced a pair of M2's on Thursday and Saturday (#1/2).  Both had
focal depths of about 22 km, similar to the previous week's activity. The
Markleeville area, also active last week at the M2-3 level, experienced a
pair of M2.2 events last Friday (#2/2).  
   Central California activity was unusually light with only a pair of
M2.1 events north of Coalinga and a M2.7 in the southern San Joaquin
Valley about ten miles south of Porterville (#4/2).
     
Long Valley Caldera
     
   Activity picked up inside the caldera during the past week.  Most
interesting were a pair of M3's in the central resurgent dome area (#2/3). 
Typically the resurgent dome has experienced minor activity in the past,
although a pair of M2 events did occur to the northwest of the M3's just
last week.  The south moat area four miles east of Mammoth Lakes was
active on Tuesday, experiencing four M2 events within a nine hour period
(#1/3).

USA Seismicity (March 8 - 15)
  
    According to information provided by the National Earthquake
Information Center, of the six areas in the lower 48 states that were
seismically active during the week aftershocks defined the activity in
three of these areas.  Klamath Falls, OR experienced one M2 aftershock
(#2/4); southeastern Idaho saw a number of M2-3 aftershocks, the largest a
M3.8 last Thursday (#3/4); aftershocks continued to decline in the
Northridge area north of Los Angeles--only two aftershocks during the past
week were as large as M3, the largest a M3.6 last Thursday morning that
was felt locally (#4/4).  
   Other national earthquakes of interest include a M2.8 in the
Yellowstone region of northwestern Wyoming (#1/4) and a M3.6 in the Finger
Lakes region of western New York state that was felt at Mt. Morris and
produced minor damage at Cuylerville (#6/4)

The Planet Earth  (March 8 - 15)

   It was a fairly quiet week on the planet with only one strong
earthquake to report.  This Mb6.0 occurred Monday afternoon in the Mexico-
Guatemala border region (#4/5).  It produced slight damage at Tuxtla
Gutierrez, Mexico and was felt at Coban, Guatemala City, Quezaltenango,
and San Marcos, Guatemala and as far away as Mexico City.  The only other
notable events in the region were a pair of M5's off the coast of
Nicaragua (#2/5).     

 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 MAR 10  811 39.72 35 56.03 120 29.14  5.61 13   .03  .4  .5 MID   1.1
94 MAR 10  817 33.16 40 28.79 124 11.03  8.90 15 1 .12  .4  .6 EUR   1.2
94 MAR 10  849  9.68 36 14.29 120 17.83 12.33 34 1 .14  .3  .4 COA   2.0
94 MAR 10  927 39.27 40 24.57 124 28.61 10.92 17 2 .09 1.0  .4 MEN   2.1
94 MAR 10  938 43.92 37 33.11 118 51.16  7.92 11   .09  .5 1.3 MOR   1.1

94 MAR 10  951 52.47 39 37.63 123 17.09  0.17 10 1 .15  .6 3.0 BAR * 1.2
94 MAR 10 1022 56.38 37 38.19 119  2.64  3.71  7   .03  .5  .9 MAM   1.0
94 MAR 10 1236 50.09 37 29.82 121 40.79  9.12 25 3 .05  .2  .4 HAM   1.2
94 MAR 10 1253 52.39 36 19.00 120 53.50  6.95 22   .09  .3  .6 BIT   1.4
94 MAR 10 1438 10.40 36 30.53 121  5.25  5.36 34 1 .06  .2  .5 BIT   1.8

94 MAR 10 1629 21.42 36 11.81 120 19.28  9.72 14 1 .14  .9  .8 COA   1.2
94 MAR 10 1705 38.15 35 56.31 121 19.23  9.26 33 1 .08  .3  .7 SSM   2.0
94 MAR 10 1804 16.97 37  7.68 121 31.78  7.73101 2 .10  .2  .4 CYN   2.6
94 MAR 10 1826 58.21 40 19.28 124 32.96  8.89 17 1 .10 1.0  .4 MEN   2.5
94 MAR 10 1831  2.14 38 47.99 122 48.04  1.52 11   .03  .3 1.0 GEY   1.6

94 MAR 10 1853 18.88 37  7.82 121 31.63  7.09 11   .03  .4  .8 CYN   1.1
94 MAR 11  131 17.40 36 42.61 121 20.74  1.50  7   .07  .4  .4 STN   1.3
94 MAR 11  132 45.23 36 42.84 121 20.68  1.07 23   .10  .2  .3 STN   2.2
94 MAR 11  250 44.76 37 36.61 118 48.57  6.59 17   .17  .6 1.0 HCF   1.4
94 MAR 11  309 39.88 38 50.50 122 49.14  2.45 14   .06  .3  .8 GEY   1.6

94 MAR 11  310 34.50 36  0.29 120 32.97  3.30  7   .04  .6 2.1 SLA   1.1
94 MAR 11  332 38.28 40 40.36 122 23.80 21.89  7   .10  .9  .6 SHA   2.0
94 MAR 11  519 48.48 38 56.02 122 59.41  2.15  7   .11  .712.5 MAA - 1.3
94 MAR 11  642 40.55 37 26.30 118 52.66  9.26 17 1 .10  .4  .8 MOR   1.6
94 MAR 11  735 42.49 36 58.46 121 36.61  2.60 58   .19  .3  .8 SAR   2.3

94 MAR 11  837  7.76 38 47.36 122 45.45  1.73  7   .02  .3  .8 GEY   1.1
94 MAR 11  944 56.26 36 57.12 121 19.88  7.51 32   .08  .3  .7 QUI   1.5
94 MAR 11 1040 50.42 38 49.36 122 47.69  3.75 14   .04  .3  .6 GEY   1.4
94 MAR 11 1158 41.57 38 42.70 119 36.56  0.13 26 6 .16  .9 1.4 WAK * 2.3
94 MAR 11 1423 19.29 37 39.34 118 54.30  3.78  9   .10  .6 1.0 DOM   1.1

94 MAR 11 1442 13.17 37 39.40 118 54.82  4.70  9   .10  .6  .9 DOM   1.1
94 MAR 11 1548 19.54 36 14.48 120 21.33  9.38 21 2 .12  .4  .5 COA   2.2
94 MAR 11 1726 50.27 40 38.83 122 23.48 21.23 10 1 .18 1.5  .7 SHA   1.9
94 MAR 11 1826  1.39 37 39.10 118 55.99  5.51 16   .13  .6  .8 SMO   1.6
94 MAR 11 1908 57.99 38 48.31 122 46.14  2.08  8   .04  .3  .6 GEY   1.2

94 MAR 11 2039 35.83 38 41.96 119 37.59  0.00 12 4 .12 1.1 1.3 WAK * 2.0
94 MAR 11 2059  1.73 41  2.21 122 11.44 14.71  7 1 .09  .6 1.4 SHA   1.4
94 MAR 11 2105  4.44 41  1.95 122 11.97 14.96 13 1 .07  .4  .9 SHA   1.9
94 MAR 11 2106 23.79 41 16.48 126  3.99 23.45 19 2 .16 2.611.1 PON - 2.9
94 MAR 11 2141 30.41 38 57.43 123  0.43  4.84 21   .16  .4 1.7 MAA   2.0

94 MAR 11 2322 31.88 37 17.54 121 40.11  3.85 13 1 .05  .3  .9 SFL   1.0
94 MAR 11 2350 34.29 38 47.12 122 46.25  2.96  8   .02  .4  .8 GEY   1.1
94 MAR 12  204 55.91 37 36.30 118 48.38  5.34 10   .14  .6 1.2 HCF   1.4
94 MAR 12  222 33.33 37 36.36 118 48.43  5.53  8   .13  .6 1.2 HCF   1.3
94 MAR 12  400  2.19 38 42.41 119 37.99  0.12 20 3 .14 1.0 1.4 WAK   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 MAR 12  510 36.32 38 47.27 122 46.40  2.23  7   .07  .4  .9 GEY   1.0
94 MAR 12  905 20.18 38 49.48 122 46.74  2.33  7   .01  .3  .6 GEY   1.3
94 MAR 12  958 53.07 38 49.35 122 46.51  2.39 13   .06  .3  .6 GEY   2.0
94 MAR 12 1039 55.15 37  2.23 122 21.46  9.73  8   .04 1.2 1.8 ANN   1.6
94 MAR 12 1119  7.73 37 22.49 120  4.31 22.27  7 2 .14 1.3 1.2 KAI   1.2

94 MAR 12 1238 48.59 37 39.47 118 56.62  8.33  7   .08 1.3 1.8 SMO   1.1
94 MAR 12 1414 36.92 37 27.18 118 50.78 10.24 22   .11  .3  .9 MOR   1.6
94 MAR 12 1443  2.43 38 47.35 122 45.43  2.04  9   .13  .5 1.0 GEY   1.3
94 MAR 12 1510 35.63 40 38.33 122 23.60 21.83 13   .19  .7 1.0 SHA   2.2
94 MAR 12 1523  4.65 40 17.62 124 22.58 14.05 18 1 .09  .6  .3 MEN   2.5

94 MAR 12 1543 33.69 40 39.39 122 23.22 20.93  9   .16  .8  .9 SHA   1.7
94 MAR 12 1555 54.81 37 47.97 121 58.56 10.31 33 3 .14  .3  .5 DAN   1.5
94 MAR 12 1747 58.87 37 36.31 118 49.34  6.36  7   .14 1.1 2.5 HCF   1.1
94 MAR 12 1749 44.64 37 36.33 118 49.13  5.26 20   .13  .4  .7 HCF   1.8
94 MAR 12 1751 52.31 37 36.40 118 48.83  4.71 10   .16  .6 1.9 HCF   1.1

94 MAR 12 1850 31.19 38 49.37 122 48.69  0.00 13   .16  .4 1.4 GEY * 1.7
94 MAR 12 1900 47.51 38 47.44 122 45.72  2.62 11   .21  .6 1.5 GEY   1.5
94 MAR 12 1903 22.58 37 36.46 118 49.05  5.01 22   .13  .4  .6 HCF   1.6
94 MAR 12 2004 52.49 38  6.98 122 27.06  7.24 61   .23  .3  .6 ROG   2.3
94 MAR 12 2247 49.81 35 55.11 119  3.10 24.95  9   .12  .9 2.7 BAK   2.7

94 MAR 12 2306 45.66 38 50.97 122 48.16  0.61  9   .06  .3 1.1 GEY   1.2
94 MAR 13  234 41.78 38 46.01 122 44.15  1.51 12   .07  .2  .5 GEY   1.7
94 MAR 13  813 45.19 37 40.18 118 52.42  1.47 10   .16  .4 1.5 DOM   1.4
94 MAR 13  816 31.39 37 35.56 118 52.67  5.05  7   .08 1.1 1.1 MOR   1.3
94 MAR 13  855 44.92 40 17.87 124 24.04  7.95 11   .07 1.0  .4 MEN   2.0

94 MAR 13  953 57.44 37 40.08 118 53.85  6.38  7   .06 1.0 1.7 DOM   1.0
94 MAR 13 1257 11.31 37 35.66 118 51.07  8.25 10   .05  .4 1.0 MOR   1.0
94 MAR 13 1328  7.87 37 38.03 118 53.17  7.48  9   .13  .7 1.2 SMO   1.3
94 MAR 13 1439 20.59 37  7.54 121 31.64  6.97 33   .05  .3  .5 CYN   1.5
94 MAR 13 1659  1.25 40 22.39 125  6.40  2.19 24   .37 6.6 9.4 MEN * 4.4

94 MAR 13 1910 50.59 40  1.25 122 14.58 25.85 27   .20  .4  .6 KLA   3.3
94 MAR 13 2011 51.58 38 47.49 122 45.41  2.08  8   .05  .3  .7 GEY   1.3
94 MAR 13 2028 46.66 37 37.97 118 53.68  7.33 19   .12  .4  .7 SMO   1.3
94 MAR 13 2029 26.51 40 22.09 124 49.92 25.58 12   .31 8.615.1 MEN   2.9
94 MAR 13 2330 29.99 37 38.56 118 56.25  5.28 22   .12  .4  .6 SMO   1.7

94 MAR 13 2350  5.58 38 49.49 122 46.52  2.63  7   .02  .3 3.3 GEY   1.1
94 MAR 14   26 54.73 37  7.62 121 31.72  6.96107   .15  .2  .5 CYN   3.1
94 MAR 14   53 33.13 37 38.42 118 51.26  4.10  9   .10  .6 1.0 SMO   1.1
94 MAR 14  120 19.13 37 28.15 118 47.33 16.48 26   .11  .4  .8 MOR   1.9
94 MAR 14  121 35.41 37 28.37 118 47.07 15.27 11   .09  .9 2.0 MOR   1.2

94 MAR 14  305 59.22 40 24.99 124 51.50 20.21  7   .15 6.8 3.0 MEN   2.0
94 MAR 14  522 29.47 37 41.11 118 52.20  5.56  7   .13 1.2 2.5 DOM   1.1
94 MAR 14  619  8.38 37 37.90 118 53.52  8.13 22   .18  .5  .9 SMO   1.7
94 MAR 14  751 25.73 38 49.83 122 47.64  2.74  9   .05  .3  .8 GEY   1.2
94 MAR 14 1158 24.72 38 45.14 122 41.81  1.22 12   .18  .5 1.2 NAP   1.8

--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 MAR 14 1158 41.30 38 44.76 122 42.05  0.02  7   .12 1.0 4.8 NAP * 1.8
94 MAR 14 1419 52.22 37 38.49 118 56.28  5.50 26   .16  .4  .6 SMO   1.9
94 MAR 14 1507 38.24 37 38.59 118 56.19  5.58 10   .12  .6 1.0 SMO   1.0
94 MAR 14 1635 18.26 37 22.60 118 25.44  5.49  7   .01  .4  .9 KAI   1.3
94 MAR 14 1814 43.28 37 47.43 121 56.46 10.29 43   .15  .3  .5 DAN   1.9

94 MAR 14 1835 29.00 36 58.78 121 51.89  7.20 12   .12  .6  .8 LOM   1.1
94 MAR 14 2022 43.58 38 49.73 122 49.54  0.00 14   .15  .3 1.2 GEY * 2.1
94 MAR 14 2024  0.13 38 49.84 122 49.99  0.08  7   .28  .8 4.0 GEY * 1.1
94 MAR 14 2105 13.12 37 38.75 118 56.20  6.15 11   .11  .7 1.0 SMO   1.1
94 MAR 14 2152 27.67 40 22.73 124  9.79 32.38 19 2 .08  .4  .6 MEN   1.7

94 MAR 14 2154 18.34 37 47.52 121 56.35 11.62118 6 .19  .2  .3 DAN   3.1
94 MAR 14 2209 38.47 37 47.01 121 56.21  9.89 21 1 .09  .3  .6 DAN   1.4
94 MAR 14 2211 22.69 37 47.17 121 56.18  9.61 41 2 .09  .2  .4 DAN   1.7
94 MAR 14 2219 36.89 37 47.17 121 56.37  9.68 35 3 .08  .2  .4 DAN   1.6
94 MAR 14 2221 53.27 37 47.06 121 56.36  8.84 13 1 .04  .4  .8 DAN   1.3

94 MAR 14 2250  8.21 37 47.25 121 56.22  9.91 48 3 .12  .2  .4 DAN   1.7
94 MAR 15  258  7.57 38 49.46 122 49.82  1.98 10   .03  .3  .7 GEY   1.4
94 MAR 15  437 34.02 38 47.25 122 45.46  1.40 31   .14  .2  .6 GEY   2.0
94 MAR 15  438 14.79 37 37.52 122 28.97  6.64 52   .22  .4  .6 SFP   2.1
94 MAR 15  514 37.42 38 47.39 122 46.24  3.80 23   .13  .3 1.8 GEY   3.4

94 MAR 15  518 31.53 38 48.60 122 47.64  1.63  8   .04  .3  .4 GEY   1.0
94 MAR 15  518 48.38 38 48.46 122 45.31  0.90 14   .08  .3  .8 GEY   1.5
94 MAR 15  519  0.58 38 47.69 122 45.84  0.57  9   .04  .4  .8 GEY   1.5
94 MAR 15  553 13.28 38 49.97 122 47.15  0.94  8   .05  .3 1.8 GEY   1.1
94 MAR 15  628 35.21 37 24.80 118 26.58 10.60 10   .02  .4  .9 CHA   1.0

94 MAR 15  732 43.61 37 16.74 121 39.50  1.51  7   .01  .4  .7 SFL   1.3
94 MAR 15  801  8.77 37  1.98 121 46.55  9.29 14   .05  .3  .7 LOM   1.3
94 MAR 15  944 18.81 37 29.21 118 50.45  8.10 31   .12  .3  .7 MOR   2.7
94 MAR 15  945 11.06 37 29.03 118 50.58  8.16 25   .12  .4  .8 MOR   2.4
94 MAR 15  956  8.69 39 32.79 123 21.87  6.23  7   .07  .4 2.0 MAA   1.4

94 MAR 15 1004 56.10 37 29.40 118 49.97  7.91 11   .17  .9 2.1 MOR   1.3
94 MAR 15 1019 42.30 37 39.74 118 52.29  4.32 14   .13  .4 1.0 DOM   1.4
94 MAR 15 1134 15.22 38 50.11 122 48.09  0.08  8   .08  .4 1.5 GEY * 1.3
94 MAR 15 1141 39.46 37 39.60 118 53.14  5.40 38   .15  .3  .6 DOM   3.2
94 MAR 15 1159 10.42 37 39.78 118 52.13  4.41 19   .14  .4  .9 DOM   1.6

94 MAR 15 1210 21.91 37 39.86 118 52.23  4.44 20   .14  .4  .9 DOM   1.9
94 MAR 15 1213 23.47 37 39.81 118 52.23  4.32 17   .13  .4 1.0 DOM   1.6
94 MAR 15 1221 57.89 37 40.21 118 51.89  4.65 10   .10  .5 1.4 DOM   1.2
94 MAR 15 1240  1.44 37 39.62 118 51.98  5.13  9   .09 1.4 1.0 DOM   1.2
94 MAR 15 1249 55.17 37 40.97 118 52.08  6.14  7   .03  .8 2.3 DOM   1.2

94 MAR 15 1323 43.30 37 39.78 118 52.94  4.91 37   .15  .3  .6 DOM   3.4
94 MAR 15 1333 28.60 37 39.93 118 52.11  4.71 22   .14  .4  .8 DOM   1.9
94 MAR 15 1354 17.54 37 40.73 118 52.40  0.83  7   .09  .6  .4 DOM   1.2
94 MAR 15 1451 33.01 37 10.59 121 35.09  3.37 19   .04  .3  .6 CYN   1.6
94 MAR 15 1545 48.97 38 49.18 122 48.19  2.06 18   .07  .3  .5 GEY   1.9

--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 MAR 15 1628 19.42 37 10.60 121 35.00  2.90 46   .08  .2  .5 CYN   1.9
94 MAR 15 1641 37.81 37 38.07 118 54.26  8.64 10   .10  .5 1.0 SMO   1.7
94 MAR 15 1929 39.85 38 47.80 122 44.79  1.13  9   .04  .3  .7 GEY   1.4
94 MAR 15 2033 21.86 36 22.94 120 39.67 11.36 14   .17  .6  .9 CRV   1.8
94 MAR 15 2033 47.28 37 10.85 121 35.23  1.78  8   .02  .3 2.2 CYN   1.2

94 MAR 15 2034 55.38 37 10.82 121 35.09  3.05 17   .05  .3  .8 CYN   1.4
94 MAR 15 2043 41.47 36 13.20 120 15.66  5.68 15   .20  .9 1.3 COA   2.1
94 MAR 15 2132 40.91 37 38.86 118 54.76  9.31 11   .12  .8 1.2 SMO   1.3
94 MAR 15 2148 15.34 37 38.49 118 54.33  7.87 21   .13  .4  .7 SMO   2.0
94 MAR 15 2208 53.73 40 16.99 125 33.57 48.38 11   .2621.111.8 MEN - 3.2

94 MAR 15 2215 46.07 37 38.43 118 54.19  7.21 19   .13  .4  .8 SMO   2.1
94 MAR 15 2216 26.39 37 40.27 118 54.38 10.28  7   .20 2.0 2.1 DOM   1.2
94 MAR 15 2313 22.28 37 39.42 118 54.54  7.56  9   .09 1.0  .8 DOM   1.2
94 MAR 15 2335 15.39 37 28.82 118 50.04  3.96 17   .10  .6 1.0 MOR   2.0
94 MAR 16    2 11.66 37 39.39 118 52.60  5.38 14   .11  .4  .8 DOM   1.5

94 MAR 16   17  0.19 37 39.22 118 52.33  4.46 15   .17  .7 1.1 DOM   1.5
94 MAR 16   23 31.65 37 40.07 118 52.30  3.32 10   .16  .8 2.3 DOM   1.3
94 MAR 16   31 27.07 37 39.13 118 51.02  0.98 10   .18  .4  .5 HCF   1.0
94 MAR 16   33 10.18 37 39.63 118 52.88  6.32 14   .17  .5 1.1 DOM   1.4
94 MAR 16   57 39.65 37 39.67 118 52.06  2.87 14   .23  .7 3.2 DOM   1.2

94 MAR 16  111 47.70 37 38.49 118 54.63  8.83 22   .14  .4  .7 SMO   2.1
94 MAR 16  119 25.71 36 52.28 121 36.61  7.29 49   .18  .3  .6 SJB   2.1
94 MAR 16  202 14.21 37 38.51 118 54.35  7.84 16   .11  .5  .9 SMO   1.6
94 MAR 16  228 22.33 38 47.83 122 48.21  3.00  8   .02  .3  .8 GEY   1.5
94 MAR 16  239 46.82 37 39.96 118 52.58  2.36  9   .09  .5 1.9 DOM   1.4

94 MAR 16  257 26.50 37 40.54 118 52.16  2.16  8   .10  .7 3.6 DOM   1.3
94 MAR 16  332 49.30 37  0.67 121 27.52  7.61 80   .13  .2  .4 CYS   2.3
94 MAR 16  410 59.26 37 37.48 118 55.30  7.84  9   .13  .9 1.4 SMO   1.0
94 MAR 16  418 41.30 37 40.82 118 52.14  4.94  8   .02  .6 2.2 DOM   1.2
94 MAR 16  554 14.08 37  6.77 121 48.91  3.51 65   .15  .2  .4 SCV   2.2

94 MAR 16  604 40.00 37  6.61 121 49.22  3.60 17   .06  .3  .5 LOM   1.3
94 MAR 16  641 37.84 37 39.41 118 53.95 10.24  8   .09 1.1 2.1 DOM   1.1
94 MAR 16  644 52.51 37 38.58 118 53.98  7.33 15   .13  .4  .9 SMO   2.2
94 MAR 16  726 16.54 37 40.13 118 51.78  4.77 13   .13  .5 1.1 DOM   1.5

     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
------------------------------------------------------------------------------
MAR 08
000818.8? 10.21 S 120.72 E  33N 4.3     1.2   7 SUMBA REGION, INDONESIA. Felt
003028.3? 29.09 N 130.56 E  48* 4.2     1.1  14 RYUKYU ISLANDS
034019.8& 58.020N 154.380W   5               39 ALASKA PENINSULA. <AEIC>. ML 3.2
044339.7& 59.680N 152.580W  76               81 SOUTHERN ALASKA. <AEIC>.
103913.2* 44.268N 110.862W   5G         0.8  11 YELLOWSTONE REG., WYOMING.ML 2.8
114018.8  39.497N 108.637W   5G         1.0   9 COLORADO. ML 2.9 (GS).
125259.0  34.183N 118.539W   5G         0.5  13 SOUTHERN CALIFORNIA. ML 3.5 Felt
152430.8  28.919N 131.021E  33N 4.5     0.8  25 SOUTHEAST OF RYUKYU ISLANDS
225033.3& 61.040N 151.140W  56               35 SOUTHERN ALASKA. <AEIC>. ML 3.3

MAR 09
012128.6?  1.02 S  16.12 W  10G 4.9     1.7  12 NORTH OF ASCENSION ISLAND
033858.2? 52.73 N 156.77 E 200G 4.4     0.9  15 KAMCHATKA
043008.2  34.984N 116.780W   5G         1.2  12 SOUTHERN CALIFORNIA. ML 3.0
084329.3  57.909N 143.219W  10G 3.1     0.9  67 GULF OF ALASKA. ML 3.7 (AEIC).
091703.4  34.381N 118.603W   5G         0.5   7 SOUTHERN CALIFORNIA. ML 2.8
100254.8  36.369N 141.270E  33N 4.5     1.1  59 NEAR EAST COAST OF HONSHU,
        JAPAN. Felt (III JMA) at Fukushima and Mito; (II JMA) at Onahama and (I
        JMA) at Sendai and Tokyo.
102354.5? 22.24 S  67.90 W 167? 4.3     0.8  20 CHILE-BOLIVIA BORDER REGION
122718.8* 18.113S 178.122W 550G 4.4     0.7  41 FIJI ISLANDS REGION
165434.1? 15.60 N  93.24 W  33N 4.1     0.9  11 NEAR COAST OF CHIAPAS, MEXICO
191550.2? 33.92 S  57.69 E  10G 4.6     1.8   8 SOUTHWEST INDIAN RIDGE

MAR 10
004008.9* 42.201N 121.990W   5G         1.3   7 OREGON. ML 2.5 (GS).
013230.5  42.754N 111.066W   5G         0.9  24 EASTERN IDAHO. ML 3.8 (GS), 4.1
                                                (BUT). Felt at Afton, Wyoming.
014525.0  42.757N 111.098W   5G         1.0  21 EASTERN IDAHO. ML 3.4 (GS), 3.3
015134.5* 17.180S 178.709W 550G 4.6     0.6  40 FIJI ISLANDS REGION
034621.5* 17.576S 178.652W 550G 4.3     0.8  19 FIJI ISLANDS REGION
035827.6* 17.710N  65.368W  10G 4.2     0.7  13 PUERTO RICO REGION
075953.5  34.200N 118.505W   5G         0.7   9 SOUTHERN CALIFORNIA. ML 2.8
080238.4* 25.509S  64.577W  33N 4.9     1.0  46 SALTA PROVINCE, ARGENTINA
102926.4* 17.471S 178.809W 550G 4.5     0.7  19 FIJI ISLANDS REGION
122543.8* 17.804S 178.449W 600D 4.9     0.9  51 FIJI ISLANDS REGION
124412.6  34.256N 118.649W   5G         0.6  21 SOUTHERN CALIFORNIA. ML 3.6
135111.2& 64.410N 146.900W  11               37 CENTRAL ALASKA. <AEIC>. ML 2.5
                                                (AEIC). Felt in the Salcha area.
141419.6? 17.71 S 178.79 W 550G 4.5     0.4   9 FIJI ISLANDS REGION
174331.3  14.304N 145.301E 115D 5.3     1.3  77 MARIANA ISLANDS
190422.9? 52.06 N 173.62 E  33N 4.5     0.7  14 NEAR ISLANDS, ALEUTIAN ISLANDS
190845.5? 17.54 S 178.66 W 550G 4.9     1.0  12 FIJI ISLANDS REGION
200809.8  37.266N 141.232E  99  4.4     0.8  18 NEAR EAST COAST OF HONSHU, JAPAN

MAR 11
031211.7  34.261N 139.189E  10G 5.1 5.0 0.9  85 NEAR S. COAST OF HONSHU, JAPAN.
                                                Felt (IV JMA) on Kozu-shima.
035402.7  34.264N 139.108E  10G 4.5     0.7  22 NEAR S. COAST OF HONSHU, JAPAN
043844.0  34.201N 139.180E  10G 4.8     0.9  42 NEAR S. COAST OF HONSHU, JAPAN
053845.2  34.288N 118.596W   5G         0.5  12 SOUTHERN CALIFORNIA. ML 3.1
105204.7  30.403N 138.232E 446D 4.6     0.8  48 SOUTH OF HONSHU, JAPAN
135558.2  34.270N 118.591W   5G         0.6  15 SOUTHERN CALIFORNIA. ML 3.3
164557.7  33.531N 115.497W   5G         1.0  10 SOUTHERN CALIFORNIA. ML 3.7
175006.8* 10.435N 130.367W  23D 4.9     0.7  28 NORTH PACIFIC OCEAN

MAR 12
014902.7  14.110S 170.996E 600G 5.3     0.7  70 VANUATU ISLANDS REGION
033244.4  41.118N  19.847E  10G 3.7     1.2  32 ALBANIA. ML 4.0 (ROM).
061646.7  52.202N  31.442W  10G 5.1     0.7  46 NORTHERN MID-ATLANTIC RIDGE
100847.8  34.346N 139.249E  18          0.8  18 NEAR S. COAST OF HONSHU, JAPAN
104315.5  42.822N  77.973W   5G         0.9  17 NEW YORK. mbLg 3.6 (GS). Minor
        damage at Cuylerville. Felt at Mt. Morris.
131058.4* 51.470N 175.161W  33N 4.3     1.5  15 ANDREANOF ISLANDS, ALEUTIAN IS.
230022.2* 11.062N  86.757W  33N 5.1 5.1 1.0  65 NEAR COAST OF NICARAGUA
234601.2  16.962N  94.206W  95D 5.1     1.0  72 OAXACA, MEXICO

MAR 13
001729.2  45.705N  28.222W  10G 4.7     1.2  42 NORTHERN MID-ATLANTIC RIDGE
031128.1  51.301N 178.214W  33N 5.5     1.0 126 ANDREANOF ISLANDS, ALEUTIAN IS.
123951.8* 52.403N 169.235W  33N 4.4     1.2  24 FOX ISLANDS, ALEUTIAN IS. ML 4.6
154934.1  47.562N 122.753W  25G         0.4   9 WASHINGTON. ML 2.8 (GS). MD 2.8
164013.9? 18.68 S  71.61 W  33N 5.0     0.9  34 OFF COAST OF NORTHERN CHILE.
                                                Felt (IV) at Iquique.
164124.4  34.275N 118.462W   5G         0.8  11 SOUTHERN CALIFORNIA. ML 3.0 Felt
204423.7* 50.833N  92.029E  33N 4.7     1.0  25 RUSSIA-MONGOLIA BORDER REGION

MAR 14
062333.4? 53.78 N 160.74 E  33N 4.5     0.9  13 NEAR EAST COAST OF KAMCHATKA
090438.8* 18.831S  68.932W 119D 4.9     0.7  44 CHILE-BOLIVIA BORDER REGION
191351.1* 14.289N  92.564W  33N 4.8     0.9  37 NEAR COAST OF CHIAPAS, MEXICO
205125.0  15.941N  92.421W 166D 6.0     1.1 132 MEXICO-GUATEMALA BORDER REGION.
        Mw 6.8 (GS).Slight damage at Tuxtla Gutierrez, Mexico. Felt at Coban, 
        Guatemala City, Quezaltenango, San Marcos, Guatemala and at Mexico City
222208.8  34.017N 117.260W  10G         1.0  26 SOUTHERN CALIFORNIA. ML 3.1

MAR 15
033622.5  11.185N  87.934W  33N 5.7 5.4 0.8  93 NEAR COAST OF NICARAGUA.
175119.7* 51.730N 159.518E  33N 5.5     0.7  64 OFF EAST COAST OF KAMCHATKA


Notes: 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.