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 3.0, 10 miles NE of Kettleman City, CA at 02:48 PM UTC Monday, 10 06, 2008 (07:48 AM PDT Monday, Oct 06, 2008).
The largest event to occur this week in this region was a microearthquake of magnitude 3.0, 3 miles W of San Juan Bautista, CA at 11:24 AM UTC Sunday, 10 05, 2008 (04:24 AM PDT Sunday, Oct 05, 2008).
The largest event to occur this week in this region was a microearthquake of magnitude 2.5, 8 miles WSW of Toms Place, CA at 01:23 PM UTC Monday, 10 06, 2008 (06:23 AM PDT Monday, Oct 06, 2008).
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 2008 OCT 1 1949 6.08 36 34.76 121 10.48 6.04 71 .07 .1 .3 2.3D 27 1 2008 OCT 2 0605 58.56 36 28.61 121 3.47 7.67 53 .06 .1 .3 2.4D 56 4 2008 OCT 3 0316 38.92 40 29.73 124 19.38 21.45 10 .03 .7 .5 2.1D 229 3 2008 OCT 3 0459 0.65 36 34.69 121 10.47 6.05 54 .06 .1 .3 2.4D 36 1 2008 OCT 4 0026 44.77 38 50.23 122 48.61 2.65 38 .07 .2 .3 2.0D 107 2 2008 OCT 4 0457 48.74 37 22.69 120 2.64 21.72 38 .28 .5 .4 2.3D 75 20 2008 OCT 4 1930 13.25 38 50.27 122 28.27 6.27 17 .12 .3 .4 2.1D 45 4 2008 OCT 5 0512 27.92 36 34.83 121 10.67 4.64 27 .05 .2 .4 2.5D 38 1 2008 OCT 5 1124 40.07 36 50.84 121 34.97 6.30 71 .09 .2 .2 3.0L 44 3 2008 OCT 5 2245 57.00 35 34.55 120 50.28 5.55 69 .13 .2 .5 2.2D 29 7 2008 OCT 5 2326 34.59 40 24.76 122 48.95 5.79 30 .44 .7 1.6 2.7D 34 12 2008 OCT 6 0244 56.64 36 31.94 121 6.73 9.30 34 .05 .2 .4 2.1D 61 4 2008 OCT 6 0259 11.48 36 50.61 121 34.56 6.18 65 .10 .2 .3 2.7D 39 2 2008 OCT 6 0523 47.40 36 50.57 121 34.39 6.18 66 .11 .2 .3 2.7D 38 2 2008 OCT 6 1233 19.03 36 31.96 121 6.79 9.15 67 .06 .1 .2 2.5D 34 4 2008 OCT 6 1302 33.58 36 31.93 121 6.81 9.09 58 .06 .1 .2 2.4D 44 4 2008 OCT 6 1323 49.71 37 31.94 118 49.13 7.19 43 .05 .2 .5 2.5D 87 6 2008 OCT 6 1448 10.27 36 6.25 119 50.05 15.14 57 .18 .5 .8 3.0L 116 25 2008 OCT 6 1704 52.27 36 5.41 119 49.89 6.62 63 .24 .5 1.8 2.9D 88 28 2008 OCT 6 1711 24.97 36 4.31 119 51.95 17.21 49 .22 1.1 1.0 2.0D 180 22 2008 OCT 6 1711 24.97 36 4.31 119 51.95 17.21 49 .22 1.1 1.0 2.0D 180 22 2008 OCT 6 2022 32.38 36 43.45 121 11.11 10.33 57 .15 .2 .5 2.5D 52 7 2008 OCT 6 2034 49.06 39 30.18 122 1.11 24.95 18 .13 .8 1.7 2.1D 80 29 2008 OCT 7 0405 30.53 39 14.13 123 8.14 6.74 22 .06 .2 .9 2.0D 53 13 2008 OCT 7 0750 7.50 40 32.49 124 7.64 25.24 18 .07 .3 .8 2.5D 119 14 2008 OCT 7 1908 21.92 38 49.34 122 47.68 3.61 49 .08 .2 .3 2.1D 49 1
