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 3.4, 11 miles SW of Toms Place, CA at 04:53 AM UTC Tuesday, 09 06, 2005 (09:53 PM PDT Monday, Sep 05, 2005).
The largest event to occur this week in this region was a microearthquake of magnitude 2.4, 5 miles WNW of San Juan Bautista, CA at 11:13 PM UTC Tuesday, 09 06, 2005 (04:13 PM PDT Tuesday, Sep 06, 2005).
The largest event to occur this week in this region was a minor earthquake of magnitude 3.4, 11 miles SW of Toms Place, CA at 04:53 AM UTC Tuesday, 09 06, 2005 (09:53 PM PDT Monday, Sep 05, 2005).
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 2005 SEP 1 0140 46.55 36 56.13 121 25.91 7.15 69 .08 .1 .3 HOL 2.4D 27 6 NN 2005 SEP 1 0833 14.08 37 29.58 118 48.41 8.70 38 .06 .3 .9 MOR 2.1D 122 5 IQ 2005 SEP 1 0911 13.96 40 33.92 122 12.11 21.48 24 .19 .4 1.0 SHA 2.1D 40 22 XX 2005 SEP 2 0516 3.96 36 20.65 120 38.01 11.44 78 .13 .2 .3 CRV 2.5D 92 13 NN 2005 SEP 2 1505 20.25 35 46.26 121 2.45 8.61 35 .06 .2 .4 SSM 2.0D 69 6 XX 2005 SEP 3 0636 21.29 37 28.43 118 49.98 3.66 32 .06 .3 .9 MOR 2.2D 135 8 IQ 2005 SEP 3 1044 47.50 36 35.11 121 10.84 5.12 66 .05 .1 .2 PIN 2.5D 31 1 NN 2005 SEP 3 1257 25.29 35 39.80 121 3.61 5.45 47 .06 .2 .6 SSM 2.3D 103 9 XX 2005 SEP 3 1959 55.28 35 51.10 119 56.10 5.58 54 .26 .5 .6 COA 2.7D 199 2 XX 2005 SEP 4 0543 32.15 38 58.53 123 1.10 6.67 21 .05 .2 .4 MAA 2.2D 43 5 WW 2005 SEP 4 0751 52.31 35 35.18 120 49.74 3.05 58 .08 .2 1.7 SSM 2.4D 62 22 XX 2005 SEP 4 1530 1.57 36 39.36 121 16.51 5.52 68 .04 .1 .2 STN 2.6D 40 1 NN 2005 SEP 4 1725 21.48 38 47.74 122 44.10 2.20 29 .05 .1 .4 GEY 2.1D 46 3 AA 2005 SEP 4 1916 33.41 39 38.57 121 7.84 5.24 12 .10 .5 3.3 WAK 2.1D 128 16 WW 2005 SEP 5 0127 8.92 38 48.91 122 48.07 2.79 22 .06 .2 .4 GEY 2.3D 41 1 WW 2005 SEP 5 0249 59.48 36 39.28 121 16.38 5.37 52 .05 .1 .4 STN 2.5D 41 1 WW 2005 SEP 5 0432 25.57 36 39.24 121 16.33 5.38 53 .05 .1 .3 STN 2.5D 39 1 WW 2005 SEP 5 0445 40.38 40 59.32 123 24.97 32.68 28 .13 .3 1.2 KLA 3.0D 87 30 WW 2005 SEP 5 1225 25.73 38 50.94 122 53.73 1.55 15 .03 .2 .6 GEY 2.1D 72 4 WW 2005 SEP 6 0448 27.06 37 28.33 118 49.92 2.96 33 .08 .3 1.2 MOR 2.8D 135 8 WW 2005 SEP 6 0453 30.49 37 28.19 118 49.97 4.18 34 .06 .3 1.0 MOR 3.4L 77 13 WW 2005 SEP 6 0557 2.39 38 48.73 122 47.74 4.35 22 .06 .2 .4 GEY 2.0D 69 0 WW 2005 SEP 6 0736 44.43 35 56.12 120 29.22 5.77 51 .06 .1 .2 MID 2.3D 55 2 WW 2005 SEP 6 1809 13.89 37 28.02 118 50.23 4.66 36 .07 .2 .8 MOR 2.8D 120 9 QQ 2005 SEP 6 1809 13.99 37 28.46 118 49.98 4.18 40 .05 .3 .7 MOR 2.7D 134 8 II 2005 SEP 6 2313 4.48 36 52.80 121 36.81 6.65 55 .10 .2 .3 SJB 2.4D 53 2 WW 2005 SEP 7 1036 0.06 37 27.14 118 50.46 6.82 29 .06 .4 1.2 MOR 2.0D 139 11 WW 2005 SEP 7 1220 25.19 35 52.14 119 56.43 5.21 48 .22 .4 .3 COA 2.6L 129 2 WW 2005 SEP 7 1445 58.34 35 50.33 119 57.06 6.36 23 .23 1.3 1.9 COA 2.5D 192 21 WW
