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@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 microearthquake of magnitude 2.8, 6 miles SE of San Juan Bautista, CA at 07:32 AM UTC Friday, 08 04, 2000 (12:32 AM PDT Friday, Aug 04, 2000).
The largest event to occur this week in this region was a microearthquake of magnitude 2.8, 6 miles SE of San Juan Bautista, CA at 07:32 AM UTC Friday, 08 04, 2000 (12:32 AM PDT Friday, Aug 04, 2000).
The largest event to occur this week in this region was a microearthquake of magnitude 2.3, 8 miles SE of Mammoth Lakes, CA at 06:54 PM UTC Saturday, 08 05, 2000 (11:54 AM PDT Saturday, Aug 05, 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 AUG 3 0401 55.58 38 48.48 122 49.43 1.42 39 .06 .1 .3 GEY 2.4D 29 3 NN 2000 AUG 3 2229 43.35 37 34.22 121 46.53 6.96 43 .08 .1 .3 SUN 2.3D 69 8 NN 2000 AUG 4 0329 41.88 36 42.79 121 20.81 1.56 58 .08 .1 .2 STN 2.3D 52 1 NN 2000 AUG 4 0732 14.86 36 46.47 121 28.48 5.06 58 .12 .2 .3 SJB 2.8D 35 3 NN 2000 AUG 4 1647 32.31 37 9.88 119 46.45 19.77 14 .02 .8 .2 KAI 2.4D 188 12 NN 2000 AUG 5 1152 43.86 39 27.84 122 9.78 26.56 26 .10 .4 1.1 SAC 2.2D 73 25 NN 2000 AUG 5 1212 38.19 37 34.19 121 46.50 7.30 43 .08 .2 .3 SUN 2.0D 69 8 NN 2000 AUG 5 1244 59.55 40 22.76 123 45.56 25.30 21 .09 .3 .9 MEN 2.3D 46 7 NN 2000 AUG 5 1707 50.77 37 38.50 119 24.54 1.29 17 .08 .4 8.2 KAI - 2.0D 72 33 NN 2000 AUG 5 1854 6.02 37 33.75 118 52.85 6.42 34 .06 .2 .4 MOR 2.3D 101 5 NN 2000 AUG 6 1746 54.17 39 27.58 123 10.76 4.82 32 .06 .1 .8 BAR 2.1D 46 11 NN 2000 AUG 6 1936 4.75 38 47.86 122 48.04 2.10 35 .04 .1 .2 GEY 2.1D 41 1 NN 2000 AUG 8 1301 58.89 38 48.07 122 48.24 3.19 32 .06 .1 .3 GEY 2.0D 34 1 NN 2000 AUG 8 1606 46.80 38 46.30 122 42.93 2.77 33 .08 .1 .3 GEY 2.2D 49 0 NN 2000 AUG 9 0000 11.61 36 32.17 121 7.15 2.59 29 .06 .2 .6 PIN 2.3D 80 7 WW
