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, 2 miles N of The Geysers, CA at 08:57 PM UTC Tuesday, 06 06, 2000 (01:57 PM PDT Tuesday, Jun 06, 2000).
The largest event to occur this week in this region was an earthquake of magnitude 2.8, 4 miles ENE of Watsonville, CA at 04:45 PM UTC Wednesday, 06 07, 2000 (09:45 AM PDT Wednesday, Jun 07, 2000).
The largest event to occur this week in this region was a microearthquake of magnitude 2.6, 11 miles N of Toms Place, CA at 04:17 PM UTC Wednesday, 06 07, 2000 (09:17 AM PDT Wednesday, Jun 07, 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 JUN 1 0150 17.09 39 19.71 122 52.60 8.74 32 .06 .1 .6 BAR 2.2D 74 19 NN 2000 JUN 1 0714 29.71 38 45.30 122 55.07 5.89 36 .08 .1 .4 ROG 2.5D 38 6 NN 2000 JUN 1 0828 49.08 39 21.05 123 2.62 6.25 35 .09 .1 .9 BAR 2.6D 57 19 NN 2000 JUN 1 1814 0.28 36 28.70 121 3.30 7.62 52 .05 .1 .3 BIT 2.3D 56 4 NN 2000 JUN 2 0315 17.62 39 20.96 123 2.33 7.21 41 .12 .2 .8 BAR 2.7D 57 19 NN 2000 JUN 2 0330 59.65 39 21.01 123 2.52 6.65 37 .07 .1 .8 BAR 2.6D 57 19 NN 2000 JUN 2 1017 24.38 37 45.07 122 9.07 5.71 76 .08 .1 .2 HAY 2.7D 30 4 NN 2000 JUN 2 1116 38.75 37 35.51 118 49.10 5.17 12 .03 .4 .4 MOR 2.2D 111 1 WW 2000 JUN 3 0308 49.87 38 50.39 122 48.66 1.61 40 .04 .1 .3 GEY 2.7D 39 4 NN 2000 JUN 3 1250 14.24 36 42.24 121 20.22 2.98 57 .07 .1 .2 STN 2.2D 35 1 NN 2000 JUN 3 1309 25.85 40 23.33 124 35.29 24.25 24 .08 1.2 5.4 MEN 2.0D 233 40 NN 2000 JUN 4 0448 34.74 36 29.80 121 4.36 4.90 52 .05 .1 .2 BIT 2.4D 68 1 NN 2000 JUN 4 0638 41.56 39 21.39 123 2.48 7.09 36 .09 .2 .7 BAR 2.5D 66 18 NN 2000 JUN 4 0648 16.72 39 21.33 123 2.47 6.94 44 .12 .2 .7 BAR 2.8D 57 18 NN 2000 JUN 4 2211 5.58 38 49.29 122 48.65 3.46 33 .04 .1 .4 GEY 2.2D 33 2 NN 2000 JUN 4 2215 17.64 38 49.34 122 48.57 2.44 40 .05 .1 .3 GEY 2.7D 33 2 NN 2000 JUN 5 0859 17.55 36 18.26 120 52.73 6.19 47 .08 .1 .2 BIT 2.1D 95 5 NN 2000 JUN 5 1951 13.62 36 51.96 121 35.90 6.52 61 .09 .1 .2 SJB 2.3D 50 2 NN 2000 JUN 6 1015 47.77 38 48.14 122 44.00 3.11 21 .05 .2 .5 GEY 2.2D 54 4 WW 2000 JUN 6 1838 23.47 38 49.29 122 47.74 4.07 16 .03 .2 .5 GEY 2.0D 54 2 WW 2000 JUN 6 1846 42.95 37 32.18 118 48.84 6.55 29 .07 .3 .6 MOR 2.6D 110 4 WW 2000 JUN 6 2025 48.46 37 32.37 118 48.70 5.78 18 .06 .5 1.1 MOR 2.3D 162 9 WW 2000 JUN 6 2057 21.60 38 49.62 122 48.22 4.74 39 .07 .1 .3 GEY 2.8D 47 2 WW 2000 JUN 7 0430 2.33 36 28.73 121 3.30 7.65 42 .06 .2 .4 BIT 2.4D 95 4 WW 2000 JUN 7 1617 41.63 37 43.13 118 38.69 35.37 20 .44 2.4 3.3 GLA 2.6D 166 6 WW 2000 JUN 7 1645 47.82 36 56.25 121 40.97 11.91 73 .09 .2 .3 SJB 2.8D 56 2 WW
