Northern California Seismicity Report for the week ending Nov 15, 2001

This report provides a brief summary of earthquake activity recorded by the U.S. Geological Survey Northern California Seismic Network in Menlo Park and the University of California Berkeley Seismological Laboratory. It is automatically generated each Wednesday shortly after midnight, Universal time (UT). UT (ie., Greenwich Mean Time) is 8 hours ahead of PST or 7 hours ahead of PDT.

Because it is not possible to review all of the earthquakes before this report is generated, it may contain errors. Please report errors or provide suggestions and comments to ncsn@andreas.wr.usgs.gov

The report no longer includes maps showing earthquakes for the entire US or world. Those maps are now available from the U.S.G.S. National Earthquake Information Center. In addition, all earthquake data can be retrieved from the Northern California Earthquake Data Center.

Please note that some of the earthquake data in this report have been reviewed by seismic analysts. Consequently, the parameters that describe the hypocenter, magnitude, origin time, and solution statistics may differ slightly from the information contained on the real-time earthquake web page. The differences reflect revised arrival times at seismic stations and the analysts' decisions to include or exclude information from seismic stations.

The minimum magnitude ( M) values in the following bullets reflect the smallest earthquake which the network can routinely record within the region. During the previous seven-day period ending at midnight (UT) Wednesday, our seismic networks recorded

• 22 M >2.0 earthquakes in Northern and Central California (map) (within dashed polygon of figure).

The largest event to occur this week in this region was a minor earthquake of magnitude 3.1, 1 miles NW of Hollister, CA at 02:04 AM UTC Tuesday, 11 13, 2001 (06:04 PM PST Monday, Nov 12, 2001).

• 12 M >1.2 earthquakes in the San Francisco Bay area (map).

The largest event to occur this week in this region was a minor earthquake of magnitude 3.1, 1 miles NW of Hollister, CA at 02:04 AM UTC Tuesday, 11 13, 2001 (06:04 PM PST Monday, Nov 12, 2001).

• 23 M >1.2 earthquakes in the Long Valley region (map).

The largest event to occur this week in this region was a microearthquake of magnitude 2.5, 14 miles S of Mammoth Lakes, CA at 09:50 AM UTC Tuesday, 11 13, 2001 (01:50 AM PST Tuesday, Nov 13, 2001).

The following table provides a listing of all M >2 earthquakes that occurred this week. An explanation of the entries in the table is available.

---ORIGIN TIME (UT)--- -LAT N-- --LON W-- DEPTH  N RMS ERH ERZ LOC    PREF AZ MIN S. PAGE   1
YEAR MON DA HRMN  SEC  DEG MIN  DEG  MIN    KM  RD SEC  KM  KM REMKS  MAG  GAP DS PF

2001 NOV  8 1150 51.79 40 24.10 124 11.23 27.82 11 .06  .8 2.1 MEN    2.2D 157  6 WW
2001 NOV  9 0103  2.86 40 45.05 124 24.79 15.31 13 .02  .6 1.0 EUR    2.1D 223 56 NN
2001 NOV  9 2325 40.59 36 12.66 120 14.49  6.14 12 .06  .8 3.2 COA         162 32 NN
2001 NOV 10 0836  2.45 38 46.40 122 43.35  1.49 12 .04  .2  .8 GEY    2.1D  65  6 NW
2001 NOV 10 1302  6.73 37  9.14 119 18.62 30.81 22 .07  .6 2.2 KAI  # 2.4D 105 27 NN
 
2001 NOV 11 0018  8.18 36 51.63 121 24.91  4.85 58 .08  .2  .4 HOL    2.5D  45  1 WW
2001 NOV 11 0050 56.14 38 46.22 122 44.51  2.27 18 .06  .2  .5 GEY    2.0D  36  2 WW
2001 NOV 11 0143 57.69 40 10.70 121 19.19  1.25 21 .35  .612.8 ALM  # 2.5D  96 18 WW
2001 NOV 11 0347 20.20 38 49.50 122 47.75  4.18 32 .05  .2  .4 GEY    2.6D  40  2 WW
2001 NOV 11 1004 21.38 36 37.95 121 10.99  0.61 33 .15  .2  .9 BVL    2.5D  47  4 WW
 
2001 NOV 11 1137 45.00 38 23.28 122 36.42  8.73 26 .08  .2  .4 ROG    2.0D  51  5 WW
2001 NOV 12 2044 44.00 37 28.15 118 48.54  9.10 35 .07  .3  .8 MOR    2.3D 130  8 NN
2001 NOV 12 2134 17.98 37 45.95 121 56.79 14.37  8 .12  .6 1.8 DAN    2.0D 100 11 WW
2001 NOV 12 2353  1.74 36 10.40 120 10.67  8.19 23 .06  .3  .4 COA    2.8D 108 12 WW
2001 NOV 13 0204 25.96 36 51.85 121 24.92  5.02 55 .11  .2  .4 HOL    3.1D  47  1 WW
 
2001 NOV 13 0950 27.04 37 26.76 119  0.71  6.65 35 .08  .3 1.9 SIL    2.5D  89 17 NN
2001 NOV 13 1517 14.16 37 26.63 119  0.73  6.96 36 .08  .2 1.5 SIL    2.1D 136 17 NN
2001 NOV 13 2151 28.72 37 29.41 118 50.39  4.09 30 .06  .4 1.1 MOR    2.0D 124  8 WW
2001 NOV 14 0926 40.03 36  2.13 121  1.41 10.28 30 .04  .2  .6 ROB    2.2D  57 12 WW
2001 NOV 14 1051  3.60 36 57.44 121 34.40  6.43 57 .14  .2  .4 SAR    2.1D  21  1 WW
 
2001 NOV 14 1546 50.34 36 42.05 121 19.84  2.98 45 .07  .2  .3 STN    2.5D  56  1 WW
2001 NOV 14 2228 51.47 38 48.93 122 47.64  4.17 28 .05  .2  .4 GEY    2.5D  38  1 WW