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
Information about seismicity for other regions is available from the U.S. Geological Survey Earthquake Hazards Program Website. 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 provided at the Northern California Maps of Recent Earthquake Activity website. 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
The largest event to occur this week in this region was a minor earthquake of magnitude 3.6, 7 miles ESE of Bishop, CA at 01:38 AM UTC Thursday, 09 07, 2006 (06:38 PM PDT Wednesday, Sep 06, 2006).
The largest event to occur this week in this region was a microearthquake of magnitude 2.7, 5 miles S of Hollister, CA at 12:42 AM UTC Saturday, 09 09, 2006 (05:42 PM PDT Friday, Sep 08, 2006).
The largest event to occur this week in this region was a microearthquake of magnitude 1.8, 9 miles WSW of Toms Place, CA at 10:21 PM UTC Saturday, 09 09, 2006 (03:21 PM PDT Saturday, Sep 09, 2006).
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 2006 SEP 7 0138 59.93 37 18.71 118 16.99 8.13 42 .06 .3 1.0 OWV 3.6L 140 18 IW 2006 SEP 7 1814 39.22 39 42.62 123 41.57 1.53 9 .08 .7 6.9 PAR 2.2D 162 21 WW 2006 SEP 7 1909 42.55 38 21.67 122 34.97 8.14 45 .07 .1 .3 ROG 2.1D 32 1 AA 2006 SEP 8 1641 41.41 36 12.29 120 16.20 10.04 45 .12 .2 .2 COA 2.6D 64 8 AA 2006 SEP 9 0000 58.48 36 46.84 121 24.48 9.64 52 .13 .2 .4 HOL 2.0D 30 4 AA 2006 SEP 9 0032 48.35 36 46.92 121 24.51 9.52 44 .13 .3 .5 HOL 2.3D 31 4 WW 2006 SEP 9 0035 47.44 36 47.05 121 24.58 9.51 54 .12 .2 .4 HOL 2.0D 28 4 AA 2006 SEP 9 0037 16.23 36 46.27 121 23.80 7.80 22 .18 .4 .6 HOL 2.4D 44 3 WW 2006 SEP 9 0042 50.10 36 47.17 121 24.62 10.04 66 .13 .2 .3 HOL 2.7D 27 4 AA 2006 SEP 9 0057 49.84 36 47.11 121 24.39 10.05 18 .09 .4 .7 HOL 2.0D 66 4 WW 2006 SEP 9 0341 51.09 38 48.88 122 47.54 3.27 34 .06 .2 .3 GEY 2.2D 47 1 WW 2006 SEP 9 0808 31.72 37 25.12 118 19.78 7.28 26 .04 .5 .8 CHV 2.2D 187 9 WW 2006 SEP 9 0838 13.09 38 49.22 122 47.74 0.08 11 .13 .4 1.5 GEY # 2.0G 71 1 Y 2006 SEP 10 1043 28.34 39 20.85 122 53.93 5.36 23 .11 .3 1.2 BAR 2.2D 39 17 WW 2006 SEP 10 1911 14.26 38 48.35 122 47.60 1.43 41 .06 .2 .3 GEY 2.4D 37 0 YW 2006 SEP 10 2140 9.72 38 49.87 122 47.68 2.94 11 .02 .4 .7 GEY 2.2G 101 1 Y 2006 SEP 11 0154 48.50 36 1.98 120 35.81 5.24 25 .10 .3 .7 SLA 2.1D 45 8 WW 2006 SEP 11 0324 28.17 38 46.34 122 43.70 1.29 36 .07 .2 .3 GEY 2.4D 41 1 WW 2006 SEP 11 1230 23.59 35 31.30 120 49.58 6.80 39 .06 .2 .9 SSM 2.9D 120 13 WW 2006 SEP 11 1805 39.70 38 48.45 122 47.62 4.06 17 .04 .4 .6 GEY 2.5G 72 1 Y 2006 SEP 12 0329 49.38 38 48.55 122 48.69 3.59 34 .07 .2 .4 GEY 2.0D 48 1 WW 2006 SEP 12 0740 24.53 38 45.49 122 42.96 2.24 18 .05 .4 .6 GEY 2.2G 120 2 Y 2006 SEP 12 1322 58.49 38 47.62 122 48.62 2.94 31 .08 .2 .4 GEY 2.2D 49 2 WW 2006 SEP 12 1422 13.33 38 48.14 122 44.16 2.36 56 .09 .1 .2 GEY 3.1D 34 2 WW 2006 SEP 12 2116 53.74 40 34.25 122 19.19 19.29 9 .04 .8 .9 SHA 2.1D 106 32 WW 2006 SEP 13 0149 23.69 36 34.14 121 5.81 8.94 49 .11 .2 .4 BVL 2.7D 52 5 WW 2006 SEP 13 0626 45.05 39 0.54 123 5.51 5.38 19 .05 .2 .7 MAA 2.3D 47 7 WW 2006 SEP 13 2133 34.15 38 49.66 122 48.32 1.36 19 .04 .2 .9 GEY 2.1D 43 2 WW
