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
The largest event to occur this week in this region was a minor earthquake of magnitude 3.5, 0 miles NNE of Fortuna, CA at 09:55 PM UTC Monday, 10 09, 2000 (02:55 PM PDT Monday, Oct 09, 2000).
The largest event to occur this week in this region was a microearthquake of magnitude 1.9, 4 miles N of Santa Rosa, CA at 08:54 PM UTC Wednesday, 10 11, 2000 (01:54 PM PDT Wednesday, Oct 11, 2000).
The largest event to occur this week in this region was a microearthquake of magnitude 2.4, 7 miles WSW of Toms Place, CA at 12:06 PM UTC Friday, 10 06, 2000 (05:06 AM PDT Friday, Oct 06, 2000).
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 2000 OCT 6 0126 43.37 38 48.82 122 48.80 4.27 40 .03 .1 .2 GEY 2.4D 32 2 NN 2000 OCT 6 0955 46.82 36 57.44 120 16.76 8.28 58 .23 .4 .8 JQN 2.3D 60 39 NN 2000 OCT 6 1206 17.01 37 32.24 118 48.80 6.72 34 .05 .2 .6 MOR 2.4D 108 4 NN 2000 OCT 7 0211 21.37 37 26.44 118 34.05 16.46 31 .05 .2 .7 RVL 2.3D 86 6 NN 2000 OCT 7 0913 19.53 39 25.00 123 16.52 8.86 31 .06 .2 .5 MAA 2.8D 48 4 NN 2000 OCT 7 1331 44.38 38 48.30 122 49.16 1.38 32 .05 .1 .4 GEY 2.3D 32 2 NN 2000 OCT 8 0253 44.05 37 21.87 119 3.37 19.21 13 .05 .4 1.0 KAI 2.0D 142 11 NN 2000 OCT 9 0950 26.91 36 33.58 121 9.33 7.38 40 .05 .1 .3 PIN 2.2D 50 4 NN 2000 OCT 9 1724 32.46 38 47.62 122 45.62 0.04 17 .28 .5 1.5 GEY # 2.3D 48 3 WW 2000 OCT 9 1952 36.49 36 42.29 121 20.08 3.18 59 .07 .1 .2 STN 3.3D 53 1 NN 2000 OCT 9 2155 13.62 40 36.30 124 9.27 17.83 16 .14 .8 .4 EUR 3.5D 199 21 NN 2000 OCT 10 2005 20.11 36 33.19 121 8.49 4.24 39 .07 .1 .5 PIN 2.4D 53 5 WW
