Northern California Seismicity Report for the week ending Jun 07, 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

• 19 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 microearthquake of magnitude 3.0, 4 miles W of Bishop, CA at 05:52 PM UTC Saturday, 06 02, 2001 (10:52 AM PDT Saturday, Jun 02, 2001).

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

The largest event to occur this week in this region was a microearthquake of magnitude 2.2, 4 miles ENE of Hollister, CA at 10:33 PM UTC Wednesday, 06 06, 2001 (03:33 PM PDT Wednesday, Jun 06, 2001).

• 17 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 2.4, 7 miles E of Mammoth Lakes, CA at 11:53 PM UTC Wednesday, 06 06, 2001 (04:53 PM PDT Wednesday, Jun 06, 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 MAY 31 2314 55.34 36 32.43 120 42.14  9.10 55 .05  .2  .1 CRV    2.6D  86 16 NN
2001 JUN  2 0752 59.92 36 50.50 121 33.95  5.21 44 .12  .2  .4 SJB    2.1D  32  2 WW
2001 JUN  2 1235  7.65 36 40.88 121 18.28  4.04 48 .06  .1  .3 STN    2.3D  33  3 WW
2001 JUN  2 1747 10.60 37 24.09 118 29.12 11.05 28 .05  .6 1.7 CHA    2.5D 151 11 WW
2001 JUN  2 1752 52.63 37 21.50 118 27.89  0.13 25 .17 1.5 2.2 KAI  # 3.0D 175  7 WW
 
2001 JUN  2 2131 17.97 38 49.46 122 48.33  4.32 30 .06  .2  .4 GEY    2.5D  37  2 WW
2001 JUN  3 0037  8.22 38 49.51 122 48.02  4.36 24 .04  .2  .4 GEY    2.2D  43  2 WW
2001 JUN  3 1020 44.63 38 50.03 122 52.94  2.62 21 .07  .2  .8 GEY    2.1D  48  5 WW
2001 JUN  3 1817 35.05 38 47.41 122 44.15  0.77 15 .05  .2  .8 GEY    2.1D  67  5 WW
2001 JUN  4 1034  8.46 36 48.65 121 32.02  7.06 52 .09  .2  .3 SJB    2.1D  35  3 WW
 
2001 JUN  4 1452 58.46 36 32.63 121  7.86  5.59 54 .05  .1  .4 PIN    2.7D  42  6 WW
2001 JUN  4 1504  2.41 38 44.72 122 42.19  1.21 20 .06  .2 1.2 NAP    2.2D  60  3 WW
2001 JUN  5 0622 13.39 38 49.56 122 46.22  3.04 25 .05  .2  .5 GEY    2.2D  44  3 WW
2001 JUN  5 1616  7.49 38 48.87 122 48.36  3.30 29 .10  .2  .5 GEY    2.4D  41  1 WW
2001 JUN  5 2102 28.82 36 42.63 121  0.89  1.21 54 .32  .4 3.9 ORT  # 2.4D  56  7 WW
 
2001 JUN  6 1333 41.67 36 35.31 121 11.08  4.75 32 .05  .2  .4 PIN    2.1D  39  2 WW
2001 JUN  6 2233  5.63 36 51.88 121 19.93  6.17 46 .05  .2  .4 QUI    2.2D  50  3 WW
2001 JUN  6 2312 39.24 38 48.80 122 47.73  3.35 20 .03  .2  .5 GEY    2.1D  39  1 WW
2001 JUN  6 2353 23.92 37 37.90 118 50.18  8.63  8 .03  .6 1.2 HCF    2.4D  84  1 WW