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
  DO NOT SEND EMAIL TO weekly@garlock.wr.usgs.gov  It will not be read.

Seismicity Report for Northern California,
the Nation, and the World for the week of
March 13 - 19, 1997

 Stephen R. Walter
U.S. Geological Survey
345 Middlefield Rd.  MS-977, Menlo Park, CA  94025

     San Francisco Bay Area        
    
  During the seven day period ending at midnight on Wednesday, March 19,
1997 the U.S. Geological Survey office in Menlo Park recorded 24
earthquakes of magnitude one (M1) and greater within the San Francisco Bay
area shown in Figure 1. Five were as large as M2.  This total compares to
18 earthquakes during the prior seven day period (March 6 - 12), seven of
which were as large as M2.
   Several of the week's larger earthquakes occurred on the creeping
segment of the San Andreas.  Largest of these was M3.1 last Thursday
afternoon that was located about eight miles southwest of Hollister
(#1/1).  It was followed by half a dozen smaller shocks, the largest a
M2.0 early last Friday morning.  On Tuesday morning a M2.3 occurred to the
southeast, but still on the creeping segment, about 10 miles southeast of
Hollister (#4/1).  
  Other events of note include a trio of M1's west of San Francisco,
aftershocks to last weeks pair of M3.5 temblors that were felt widely in
the Bay Area (#2/1); a M2.0 on the central Calaveras just east of Milpitas
(#3/1); and a M2.6 on the southern Sargent fault about three miles
southwest of Gilroy (#5/1).
   
Northern & Central California
	
    It was a very quiet week in northern California.  The Cape Mendocino
area experienced just one event as large as M2, a M2.2 last Friday about
30 miles west of Petrolia (#4/2).  The Coast Range was nearly as quiet
with a M2.3 west of the Maacama fault about 12 miles northwest of Ukiah
(#2/2) along with the usual Geysers activity, this time capped by a M3.0
event on Sunday morning (#8/2).
  Minor activity occurred in the central part of the state.  The largest
event here was a M2.6 just after midnight Monday about 12 miles east of
Kettleman City (#9/2).  A pair of small M2's occurred on the central
creeping segment of the San Andreas southeast of the Pinnacles National
Monument (#1/2) and a M2.3 occurred on the northern Parkfield segment of
the San Andreas about four miles northwest of Parkfield (#10/2).
   Activity along the eastern Sierra Nevada range included a pair of M2's
in the Markleeville area (#6/2), a M2.4 just north of Mono Lake (#5/2), a
M2.7 12 miles southwest of Big Pine (#3/2), and a M2.5 eleven miles west
of Bishop (#7/2).

Long Valley Caldera

     As has been the case for most of the year so far there were no
earthquakes as large as M2 within the Long Valley caldera.  South of the
caldera there were two earthquakes as large as M2:  a M2.0 last Thursday
east of Convict Lake (#1/3) and a M3.3 Wednesday evening south of Red
Slate Mountain (#2/3).

USA Seismicity (March 10 - 19)
  
   The National Earthquake Information Center reported a M4.7 last
Wednesday in the St. Lawrence Island region of Alaska that was felt at
Gambell, the westernmost city on the island (#1/5).  Last Friday a M3.6
occurred along the Idaho/Montana border that was felt in the local area
(#1/4).  On Sunday a M4.2 occurred beneath the southeast side of the
Island of Hawaii (#4/5).  That same day a M3.4 occurred about 60 miles
southwest of Little Rock, Arkansas near the western end of De Gray Lake
(#2/4).  The largest domestic earthquake occurred Tuesday morning in
southern California (#3/4).  This M5.4 quake occurred about ten miles
northeast of Barstow.  It was strongly felt in the town, though it
produced only minor damage, and was felt in Los Angeles, Orange,
Riverside, and San Bernardino counties.  The earthquake is considered an
aftershock to the M7.3 Lander Earthquake of June 28, 1992.  Tuesday's
quake was located in "Barstow cluster" of the Landers sequence.

The Planet Earth  (March 10 - 19)

   The only large earthquake on the planet during the week was a M6.0 in
the Sunda Strait of southern Indonesia (#5/5).  It produced minor damage
in Jakarta and was felt throughout western Jawa and southeastern Sumatera,
Indonesia.  Though smaller, a M5.5 near the south coast of Honshu, Japan
caused more injuries with at least four people injured at Toyohashi, a
coastal town about 150 miles southwest of Tokyo (#3/5).  Finally, two M4.7
earthquakes occurred off the coast the central America last Thursday and
were both felt in San Salvador, El Salvador (#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

97 MAR 13 1024 12.92 37 31.99 118 49.56  9.48 19   .06  .4  .6 MOR   1.5
97 MAR 13 1217 55.71 36 29.83 121  4.20  3.83 46 1 .06  .1  .2 BIT   2.3
97 MAR 13 1222 14.18 36 29.88 121  4.31  3.97 29   .06  .2  .3 BIT   2.1
97 MAR 13 1223 26.94 36 30.01 121  4.24  3.79 21   .07  .3  .4 BIT   1.2
97 MAR 13 1259  8.99 37 35.44 118 49.35  8.08 24   .06  .4  .4 MOR   2.0

97 MAR 13 1327 40.54 38 48.53 122 48.95  1.37  9   .02  .5  .3 GEY   1.0
97 MAR 13 1340 15.63 39 13.06 123 24.66  0.12 29 3 .12  .2 1.4 PAR   2.3
97 MAR 13 1345  9.29 38 48.46 122 48.89  1.47  8   .02  .3  .5 GEY   1.2
97 MAR 13 1621 35.42 38 49.40 122 48.45  4.17  7   .03  .5  .9 GEY   1.0
97 MAR 13 1717 51.76 38 49.77 122 45.70  0.97 12   .04  .2  .6 GEY   1.5

97 MAR 13 1719 45.46 37 38.55 118 47.32  4.64 12   .02  .7  .7 EMO   1.9
97 MAR 13 1719 57.65 37 38.57 118 47.45  4.35 11 1 .02  .8  .6 EMO    .9
97 MAR 13 1738  2.85 36  4.46 120 37.46  2.77  7   .03 1.3 2.2 SLA   1.4
97 MAR 13 1934 15.83 40  5.66 123 46.21 22.17 10   .05  .6  .5 MEN   2.0
97 MAR 13 2040 17.74 37 28.83 118 37.59 11.69 19 1 .07  .3 1.2 RVL   1.7

97 MAR 13 2042 17.02 37 28.87 118 37.54 10.62 28 3 .08  .3 1.1 RVL   2.1
97 MAR 13 2052 20.00 40  3.01 123 49.36 15.04  7 1 .26 4.6 6.9 MAA # 1.4
97 MAR 13 2114  7.11 36 44.70 121 26.84  7.51 73 3 .21  .2  .4 SJB   3.1
97 MAR 13 2115 41.18 36 44.97 121 26.88  8.86 46 2 .22  .3  .5 SJB   1.6
97 MAR 13 2118 55.48 36  4.61 120 37.09  3.60 14 3 .03  .7  .6 SLA   1.4

97 MAR 14   27 39.89 38 48.39 122 48.29  3.27 23   .05  .2  .3 GEY   1.8
97 MAR 14  131 54.74 36 57.60 121 35.19  2.69  9   .15  .7  .8 SAR   1.0
97 MAR 14  209 16.89 37 38.14 118 52.63  7.90 14 1 .05  .3  .7 SMO   1.3
97 MAR 14  210 37.87 37 24.84 118 37.98  7.81 26   .08  .3 1.2 RVL   1.7
97 MAR 14  227  9.20 38  1.46 118 57.78  4.86  9 1 .06 2.4 6.7 MOL - 1.3

97 MAR 14  311 50.75 36 12.59 120 21.71 10.29 22   .03  .2  .3 COA   1.7
97 MAR 14  426 29.94 37 38.63 118 47.26  4.62 12 1 .03 1.2  .5 EMO   1.2
97 MAR 14  445 13.55 36 46.25 121 16.54  8.93 41   .05  .2  .3 PAI   1.5
97 MAR 14  457 48.22 36 44.95 121 26.69  7.55 39 2 .19  .3  .5 SJB   1.5
97 MAR 14  524 59.63 38 49.19 122 47.62  0.16  9   .10  .4 1.5 GEY # 1.4

97 MAR 14  548 14.59 37 32.21 118 51.45  8.65 23   .06  .3  .6 MOR   1.8
97 MAR 14  554 45.33 37 30.47 118 48.55  3.54  8 1 .04 1.4 2.5 MOR   1.2
97 MAR 14 1007 20.18 36 31.56 120 51.24  6.70 15 1 .17  .5 6.6 CRV # 1.3
97 MAR 14 1010  2.35 36 46.22 121 16.52  8.87 30 1 .06  .2  .4 PAI   1.1
97 MAR 14 1019  0.81 36 45.75 121 26.33  9.34 16 1 .05  .4  .6 SJB   1.2

97 MAR 14 1046 55.77 36 44.89 121 26.41  7.67 62 2 .18  .2  .4 SJB   2.0
97 MAR 14 1309 16.70 37 38.49 118 47.75  4.46 15 1 .03  .8  .4 EMO   1.3
97 MAR 14 1454 41.42 36 45.32 121 25.33  6.65  9 1 .10  .7 1.2 SJB    .9
97 MAR 14 1636 44.36 38 46.63 122 43.57  1.63 11   .07  .3  .4 GEY   1.4
97 MAR 14 1827 33.38 36 18.07 120 14.23 11.72 26   .04  .5  .2 COA   2.2

97 MAR 14 1843  0.66 37  1.47 118 24.52  0.16 41   .20  .5 5.5 KAI # 2.7
97 MAR 14 1923  1.01 38 49.38 122 47.95  3.99 15 2 .01  .2  .4 GEY   1.4
97 MAR 14 1944 22.34 38 48.78 122 48.58  3.79  7   .02  .4  .7 GEY   1.2
97 MAR 14 2010 17.63 36 29.80 121  4.46  3.80 14 1 .02  .4  .2 BIT   1.3
97 MAR 14 2010 52.90 36 30.37 121  5.44  4.64 27 1 .06  .2  .5 BIT   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

97 MAR 14 2011 43.76 36 30.68 121  5.50  4.71 23   .07  .2  .5 PIN    .9
97 MAR 14 2236 23.47 37  6.21 121 48.94  5.06 32 1 .09  .2  .3 LOM   1.5
97 MAR 14 2250 32.54 37 33.98 118 42.48  5.53  9   .02 1.0  .7 CAS   1.2
97 MAR 15   41 49.54 36 16.95 120 51.07  7.34 25 1 .06  .2  .3 BIT   1.8
97 MAR 15  101 14.50 36  2.53 120 35.09  4.45 16 2 .05  .4  .4 SLA   1.5

97 MAR 15  205 29.27 38 51.07 122 50.42  1.87  7   .03  .8 1.3 GEY   1.0
97 MAR 15  329 45.36 36 30.98 120 51.73  3.58 22 1 .35  .6 6.8 CRV # 1.4
97 MAR 15  331 41.71 38 48.80 122 48.54  3.73  7   .02  .4  .7 GEY   1.2
97 MAR 15  426 31.08 36 29.98 121  4.41  3.67 28 1 .06  .2  .3 BIT   1.6
97 MAR 15  435 43.77 36 29.85 121  4.47  3.50 13 1 .04  .3 1.0 BIT   1.2

97 MAR 15  553 58.21 36 13.48 120 48.04  5.66  8 1 .08 1.0  .4 BIT   1.4
97 MAR 15  558 15.88 40 25.23 124 51.35 24.45 12   .10 3.510.1 MEN - 2.2
97 MAR 15  736 42.54 38 48.80 122 48.13  3.23 10   .04  .3  .5 GEY   1.4
97 MAR 15  750 43.29 36 57.56 121 35.10  2.70 56   .14  .1  .3 SAR   1.8
97 MAR 15  804 32.53 38 10.53 119  9.35 15.33 18 4 .25 1.2 1.0 MOL   2.4

97 MAR 15  807 27.02 37 21.90 121 20.79  2.22 10   .05  .5 9.1 HAM - 1.4
97 MAR 15  831 46.25 38 35.53 119 51.03  0.32 31 1 .10  .4 2.0 WAK   2.8
97 MAR 15 1919  9.96 37 25.49 118 34.39 10.52 27 2 .07  .3  .8 RVL   2.5
97 MAR 16    2 19.23 38 47.73 122 48.49  4.05 16   .03  .2  .4 GEY   1.4
97 MAR 16   22  6.56 38 47.78 122 48.45  4.24  8   .01  .3  .6 GEY   1.0

97 MAR 16  121 37.37 38 49.48 122 48.06  4.15 23   .04  .2  .3 GEY   1.9
97 MAR 16  127 46.41 38 50.91 122 50.34  1.84 19   .04  .2  .5 GEY   1.7
97 MAR 16  129 54.73 38 47.58 122 45.31  2.37 12   .05  .2  .6 GEY   1.4
97 MAR 16  335  8.96 36  4.55 120 37.03  3.21 24 2 .06  .4  .3 SLA   1.7
97 MAR 16  348 35.80 38 48.27 122 46.11  3.08 11   .02  .3  .6 GEY   1.5

97 MAR 16  413 44.55 35 59.44 120 32.34  5.89  9   .02  .9 1.2 MID   1.3
97 MAR 16  503 45.93 37 33.98 118 51.25  9.21 21 2 .05  .7  .4 MOR   1.4
97 MAR 16  540 26.12 38 46.56 119 44.73  4.72 11   .04 2.1 6.7 WAK - 2.3
97 MAR 16  646 44.15 38 49.32 122 48.22  4.27 20   .03  .2  .4 GEY   1.7
97 MAR 16  724 32.64 37 43.62 122 31.89  6.73 10 1 .04  .3 1.7 SFP   1.5

97 MAR 16  827 30.11 37 33.96 118 52.28  4.00 23 1 .09  .3  .7 MOR   1.8
97 MAR 16 1053 43.53 38  1.10 118 43.03  4.91 12   .03 2.0 1.8 MOL   1.7
97 MAR 16 1134 10.26 38  5.25 118 41.83  1.46 11   .05 1.6 7.2 MOL - 1.5
97 MAR 16 1303 25.76 38 47.52 122 46.71  2.32 18 1 .04  .2  .6 GEY   1.4
97 MAR 16 1419 33.49 38 46.66 122 43.24  2.70 21   .05  .3  .3 GEY   1.7

97 MAR 16 1424  6.11 36 28.75 121  3.15  5.70 25   .06  .2  .4 BIT   1.3
97 MAR 16 1456  1.42 36 33.71 121  3.06  8.15 24 1 .07  .3  .4 BVL   1.4
97 MAR 16 1821 23.62 38 45.42 122 43.07  2.20 11   .04  .4  .3 GEY   1.3
97 MAR 16 1824 35.14 38 45.48 122 43.34  2.35 43   .15  .2  .5 GEY   3.0
97 MAR 16 2036 32.67 38 48.26 122 48.89  4.36  8   .02  .3  .8 GEY   1.2

97 MAR 17  223 30.20 38 47.16 122 45.36  2.32 15   .03  .2  .5 GEY   1.4
97 MAR 17  252 17.94 36 34.44 121  4.31 10.19 22 1 .06  .3  .6 BVL   1.1
97 MAR 17  502 54.06 37 20.03 122  6.95  5.27  9 1 .02  .7  .5 BLM    .9
97 MAR 17  703  3.76 39  9.88 123  3.41  6.88 13   .07  .4  .6 MAA   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

97 MAR 17  714 49.43 36 31.71 120 51.17  9.89 16 1 .16  .4 2.3 CRV   1.3
97 MAR 17  718 52.57 38 49.26 122 50.41  2.54  9   .03  .3  .7 GEY   1.5
97 MAR 17 1020 48.43 37 50.72 121 46.12 19.72 27 1 .09  .4  .3 GRN   1.8
97 MAR 17 1050 38.59 37 49.70 121 47.65  6.27 16   .19  .616.7 GRN - 1.4
97 MAR 17 1157 29.66 35 31.77 119 26.60 25.58  7   .18 1.6 6.7 BAK   1.7

97 MAR 17 1441  1.94 37 36.46 118 48.49 11.82 11 2 .04 1.3 1.3 HCF   1.3
97 MAR 17 1504  8.61 37 35.45 118 46.98  8.32 11 1 .03 1.1  .8 MOR   1.1
97 MAR 17 2011 38.95 36 30.10 118 15.35 11.31 11 4 .36 2.8 4.2 WWF   2.0
97 MAR 17 2026 25.40 39  9.34 123 10.30  4.61  7   .02  .4 1.8 MAA   1.3
97 MAR 18   44  6.41 36 35.01 121 11.01  2.41 11   .04  .3  .4 PIN   1.4

97 MAR 18  146  8.11 38 13.11 118 44.02  5.05 21   .07 1.3 9.6 MOL - 2.0
97 MAR 18  303 32.29 35 39.46 121  6.17  5.23  9 1 .04  .6 1.1 SSM   1.4
97 MAR 18  459 42.33 36 34.58 121  3.82  8.80 20 3 .08  .2  .6 BVL   1.1
97 MAR 18  833 15.70 36  7.03 118  3.80  2.98 11 1 .02  .5 2.0 WWF   2.1
97 MAR 18  857 45.13 36 43.36 121 22.24  7.92 23 3 .03  .2  .5 STN   1.3

97 MAR 18  859  1.26 36  0.82 119 45.06 23.85 49 1 .21  .3  .6 COA   2.6
97 MAR 18 1343  3.05 37 34.58 118 49.16 13.15 11   .03  .8  .9 MOR   1.1
97 MAR 18 1350  5.62 37 25.62 121 46.33  8.12 64 2 .06  .1  .3 ALU   2.0
97 MAR 18 1359 20.99 36 42.89 121 20.94  3.47 42   .12  .2  .4 STN # 2.3
97 MAR 18 1418 18.73 37 34.31 118 49.40 12.00 16   .04  .7  .6 MOR   1.4

97 MAR 18 1433 35.28 38 49.29 122 48.37  4.08 22   .04  .2  .4 GEY   2.0
97 MAR 18 1523 24.14 36 57.57 121 35.21  2.42 63   .19  .2  .5 SAR   2.6
97 MAR 18 1616 43.34 37 38.16 119 22.73 21.43 20   .11  .4 1.6 KAI   2.2
97 MAR 18 1728 55.36 38 49.41 122 48.49  3.77  7   .04  .4  .8 GEY   1.0
97 MAR 18 1734 22.20 38 47.49 122 44.47  1.94 15 1 .03  .2  .5 GEY   1.6

97 MAR 18 1743 29.83 35 56.21 120 29.05  5.72 40 5 .08  .2  .2 MID   2.3
97 MAR 18 1842 18.14 35 56.23 120 29.07  5.45  9   .02  .5  .6 MID   1.1
97 MAR 18 2046 16.00 38 48.64 122 48.21  1.81  8   .03  .3  .4 GEY   1.1
97 MAR 18 2057  0.96 38 48.33 122 48.18  2.19 12   .04  .3  .3 GEY   1.4
97 MAR 18 2137  3.99 38 47.71 122 44.87  1.13  8   .04  .3  .9 GEY   1.4

97 MAR 18 2324  3.45 37 38.86 118 53.48  7.39  8   .05  .7  .9 SMO   1.1
97 MAR 19  305 20.83 37 45.36 122 34.87  4.72 25 1 .04  .3  .5 SFP   1.7
97 MAR 19  320 32.72 38 47.77 122 48.54  4.04  9   .02  .3  .6 GEY   1.4
97 MAR 19  427 53.07 38 47.98 122 48.72  4.23  9   .02  .3  .6 GEY   1.4
97 MAR 19  558 43.83 36 52.31 121 28.77  5.94 30   .27  .4  .9 BUS   1.4

97 MAR 19  908 43.64 38 49.47 122 47.99  4.44 12   .03  .3  .5 GEY   1.4
97 MAR 19  908 56.79 38 49.33 122 48.04  4.59 17   .03  .3  .4 GEY   1.6
97 MAR 19  919 52.20 38 47.35 122 45.48  1.75  8   .02  .3  .6 GEY   1.3
97 MAR 19  934 18.66 38 49.35 122 47.82  3.75  8   .02  .3  .8 GEY   1.2
97 MAR 19 1133 19.12 37 45.23 122 34.07  5.74 16   .03 1.0 1.8 SFP # 1.5

97 MAR 19 1338 29.83 37 20.10 118 37.08 11.78 25 5 .36 1.2 1.4 KAI   1.6
97 MAR 19 1406 53.46 38 47.40 122 45.39  2.19 30 1 .05  .1  .3 GEY   2.0
97 MAR 19 1412 49.12 37 34.37 118 49.38 11.99 19   .04  .4  .6 MOR   1.6
97 MAR 19 1417 11.46 36 36.58 122 33.63 21.50 11   .4737.838.5 POS - 1.2
97 MAR 20  308  7.29 37 29.42 118 50.00 12.40  9   .12 1.8 4.8 MOR   3.3

--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

97 MAR 20  638 30.46 36 35.58 121  6.01  8.40  8   .05  .8 2.0 BVL   1.2
  
   
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 10
031222.4* 29.192N 103.086E  10G 4.4     1.2  20 SICHUAN, CHINA
083431.3* 18.999N 104.598W  33N 4.3     0.9  32 NEAR COAST OF JALISCO, MEXICO
175033.5  27.389N  92.732E  10G 4.5     1.1  32 EASTERN XIZANG-INDIA BORDER REG.
175514.3* 27.243N  92.414E  33N 4.5     1.5  39 EASTERN XIZANG-INDIA BORDER REG.

MAR 11
000101.0  12.510N 143.676E  33N 4.7     1.0  28 SOUTH OF MARIANA ISLANDS
040214.7  44.505N   7.418E  10G 3.0     1.3  10 NORTHERN ITALY. ML 1.9 (LDG).
063926.9   5.926N 126.804E  33N 5.1     0.6  21 MINDANAO, PHILIPPINE ISLANDS
071702.8* 32.405N 142.613E  33N 4.4     1.2  17 SOUTH OF HONSHU, JAPAN
094631.6  35.642N  95.893E  47D 3.2     0.9  19 QINGHAI, CHINA
105600.1* 81.306N   5.334W  10G 3.1     1.7  15 NORTH OF SVALBARD
110118.6? 32.40 S  72.15 W  33N         0.8   9 OFF COAST-CENTRAL CHILE. MD 3.3
141746.9  25.027N 126.449E  33N 5.0     0.9  34 RYUKYU ISLANDS
143434.3* 11.691N 125.360E  33N 3.7     0.9  12 SAMAR, PHILIPPINE ISLANDS
165046.2* 16.532N  98.337W  33N 4.2     1.3  32 NEAR COAST OF GUERRERO, MEXICO
165320.8* 15.130N 122.815E  33N 3.8     1.3  13 PHILIPPINE ISLANDS REGION
175518.5* 24.014S  66.909W 200G 4.6     1.4  14 SALTA PROVINCE, ARGENTINA
183815.9  18.107S 176.725W 352D 4.8     0.7  58 FIJI ISLANDS REGION

MAR 12
001557.1? 53.29 S 140.33 E  10G 4.7     0.9   8 WEST OF MACQUARIE ISLAND
072439.0? 34.36 S  72.16 W   5G         0.4  10 NEAR COAST-CENTRAL CHILE. MD 3.9
112750.2* 17.724N 146.060E 137* 4.4     0.7  17 MARIANA ISLANDS
113817.1* 21.368S  65.690W 300G 4.5     0.5  15 SOUTHERN BOLIVIA
130813.1? 32.43 S  71.87 W  25G         0.6  11 NEAR COAST-CENTRAL CHILE. MD 4.5
135006.5* 22.461S  67.301W 169? 4.0     0.9   9 CHILE-BOLIVIA BORDER REGION
145149.4  13.386N 120.859E  33N 5.2 5.0 1.2  47 MINDORO, PHILIPPINE ISLANDS
182944.0& 62.920N 169.720W  20  4.7          42 ST. LAWRENCE ISLAND REGION.
                                                Felt at Gambell, Alaska.
184549.3% 33.225S  70.354W   5G         0.3   7 CHILE-ARGENTINA BORDER. MD 3.0 
221248.6% 34.233S  70.082W   5G         0.4  10 CHILE-ARGENTINA BORDER. MD 3.7

MAR 13
011210.9  42.789N 142.938E 129D 4.7     0.7  78 HOKKAIDO, JAPAN  REGION
025525.4* 51.276N 176.857W  33N 4.4     1.1  32 ANDREANOF ISLANDS, ALEUTIAN IS.
                                                ML 4.7 (PMR).
025939.5? 39.92 N  39.98 E  10G 4.3 3.3 1.1  12 TURKEY
060616.7* 58.622S  25.239W  33N 4.9     1.0  11 SOUTH SANDWICH ISLANDS REGION
062758.4  36.411S  97.530W  10G 4.9 5.0 0.7  39 WEST CHILE RISE
065931.0* 14.263N  90.079W 150G 4.7     0.8  20 GUATEMALA
140412.3? 39.51 N 143.79 E  33N 5.0     0.2   5 OFF EAST COAST OF HONSHU, JAPAN
164906.3? 12.00 N  88.76 W  33N         0.7  10 OFF COAST-CENTRAL AMERICA. MD
3.8
                                                Felt (II) at San Salvador.
165500.0* 46.391N 153.195E  33N 4.8     1.0  18 KURIL ISLANDS
180609.8  25.565N 123.790E 206D 4.9     1.0 108 NORTHEAST OF TAIWAN
203812.9* 30.105N  68.132E  33N 4.6     0.9   9 PAKISTAN
204121.3   4.194S 142.913E 117D 5.5     1.1  44 NEW GUINEA, PAPUA NEW GUINEA
211406.3  36.782N 121.456W  10G         0.7  13 CENTRAL CALIFORNIA. MD 3.2 (GM).
213440.7  12.378N  89.389W  33N 4.7     0.9  33 OFF COAST-CENTRAL AMERICA. MD
4.4
                                                Felt (II) at San Salvador, El
Salvador.
234243.9* 12.260N  89.475W  33N 4.7     0.7  16 OFF COAST-CENTRAL AMERICA. MD
3.9
                                                Felt (II) at San Salvador, El
Salvador.
234859.2  51.605N  16.173E   5G         0.5  12 POLAND. ML 4.1 (GRF), 3.7 (VIE).

MAR 14
094258.3* 34.186S 109.552W  10G 5.1 5.0 0.8  34 SOUTHERN EAST PACIFIC RISE
114515.6* 38.095N  28.973E  10G 4.2     0.2   7 TURKEY. Felt at Denizli.
114816.9* 38.089N  28.892E  10G         0.6   7 TURKEY. MD 3.8. Felt at Denizli.
121235.5% 38.093N  28.972E  10G         0.3   6 TURKEY. MD 3.6. Felt at Denizli.
171832.0& 47.470N 115.780W   2               29 MONTANA. ML 3.6 (BUT).
                                                Felt in the epicentral area.
184301.0  37.026N 118.339W  10G         0.8   7 CALIFORNIA-NEVADA BORDER.
                                                MD 2.9 (GM).

MAR 15
092411.3   7.394N 127.019E  33N 5.5 4.8 0.9  35 PHILIPPINE ISLANDS REGION
103735.3* 15.696N  93.017W  95D 4.5     0.8  20 NEAR COAST OF CHIAPAS, MEXICO
111734.1*  1.384S 145.386E  33N 4.7 5.5 0.9  13 ADMIRALTY ISLANDS REGION, P.N.G.
171854.5  43.742N 147.199E  33N 5.0     0.6  49 KURIL ISLANDS

MAR 16
020943.2* 50.113N 179.685E  33N 4.3     1.0  14 RAT ISLANDS, ALEUTIAN ISLANDS.
042104.3? 13.60 N  90.61 W  33N 4.4     1.0  25 NEAR COAST OF GUATEMALA
055137.5  34.937N 137.478E  36D 5.5 4.8 0.7 112 NEAR S. COAST OF HONSHU, JAPAN.
        Mw 5.7 (HRV). At least 4 people injured at Toyohashi. Felt (V JMA) at
        Toyohashi and (IV JMA) Hikone, Mino-kamo, Nagoya, Omi-Hachiman and
        Shimada. Also felt slightly at Tokyo. 
141901.1& 19.364N 155.080W   8  4.2          12 HAWAII. <HVO-P>. MD 4.4 (HVO).
182435.0  38.742N 122.616W   5G         0.9  10 NORTHERN CALIFORNIA. MD 3.0
190728.1* 34.267N  93.488W   5G         0.5   7 ARKANSAS. mbLg 3.4 (GS).

MAR 17
051343.6  18.911N  62.822W  33N 4.8     0.8  43 LEEWARD ISLANDS
052036.8  18.977N  62.847W  33N 4.9 4.9 0.7  38 LEEWARD ISLANDS
080548.0*  6.849S 105.824E  33N 5.8 6.0 1.1  26 SUNDA STRAIT. Mw 6.4 (HRV). Some
        minor damage at Jakarta, Indonesia. Felt throughtout western Jawa,
        Indonesia. Also felt in Lampung and at Palembang, Sumatera, Indonesia.
083658.6  18.673S  69.571W  83D 5.1     0.8  47 NORTHERN CHILE. Felt (IV) at
        Arica; (II) in the Iquique-Pozo Almonte area.
092318.7* 42.377N 142.127E  72D 4.9     0.4  33 HOKKAIDO, JAPAN  REGION. Felt
                                                (III JMA) in the Shizunai area.

MAR 18
152447.2  34.974N 116.827W  10G 4.7     1.0  63 SOUTHERN CALIFORNIA. MD 5.4
        (PAS). Minor damage in the Barstow area. Felt in the Los Angeles,
        Orange, Riverside and San Bernardino Counties.
161923.3  34.984N 116.858W  10G         0.9  38 SOUTHERN CALIFORNIA. MD 3.7
164014.2  34.989N 116.851W   5G         0.7  25 SOUTHERN CALIFORNIA. MD 3.4

MAR 19
175041  Q 16.5  S 174.2  W 100  5.6     0.6  74 TONGA ISLANDS

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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.