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 light earthquake of magnitude 4.2, 12 miles SW of Toms Place, CA at 10:09 PM UTC Sunday, 03 13, 2005 (02:09 PM PST Sunday, Mar 13, 2005).
The largest event to occur this week in this region was an earthquake of magnitude 2.6, 6 miles SSE of San Juan Bautista, CA at 06:23 AM UTC Thursday, 03 10, 2005 (10:23 PM PST Wednesday, Mar 09, 2005).
The largest event to occur this week in this region was a light earthquake of magnitude 4.2, 12 miles SW of Toms Place, CA at 10:09 PM UTC Sunday, 03 13, 2005 (02:09 PM PST Sunday, Mar 13, 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 MAR 10 0225 48.20 40 8.53 123 48.62 23.33 11 .07 .5 .6 MEN 2.2D 131 11 XX 2005 MAR 10 0228 31.70 40 8.92 123 48.74 21.29 15 .15 .5 .6 MEN 2.1D 129 11 XX 2005 MAR 10 0614 27.47 38 46.25 122 44.25 1.66 48 .07 .1 .2 GEY 2.2D 35 1 AA 2005 MAR 10 0623 57.59 36 45.72 121 29.70 10.23 62 .10 .2 .4 SJB 2.6D 37 7 NN 2005 MAR 10 1443 39.34 36 2.04 120 35.36 8.35 60 .06 .2 .2 SLA 2.4D 79 4 XX 2005 MAR 11 0237 32.27 35 38.51 120 55.98 7.28 36 .07 .2 .4 SSM 2.0D 72 6 XX 2005 MAR 11 1130 3.15 39 26.60 122 2.87 13.35 28 .26 .6 1.1 SAC 2.1D 57 24 AA 2005 MAR 11 2105 25.67 37 22.37 119 58.30 13.27 10 .03 .4 .8 KAI 2.2D 106 29 AA 2005 MAR 12 0506 38.13 37 23.61 118 31.60 7.14 36 .07 .4 .9 CHA 2.2D 63 6 QQ 2005 MAR 12 1058 16.80 40 41.29 124 43.09 12.24 57 .21 1.0 2.5 EUR 3.4L 221 59 WW 2005 MAR 12 1231 6.69 35 32.28 120 46.54 4.12 52 .08 .2 .9 SSM 2.5D 67 14 XX 2005 MAR 12 1518 25.00 35 38.96 121 2.85 4.99 52 .07 .1 .5 SSM 2.6D 106 10 XX 2005 MAR 12 1554 9.55 35 43.01 121 7.19 7.43 40 .07 .2 .5 SSM 2.2D 93 5 XX 2005 MAR 12 2340 53.14 38 49.23 122 47.99 3.11 41 .07 .2 .3 GEY 2.0D 40 1 YA 2005 MAR 13 0044 42.34 35 40.93 120 59.97 6.89 39 .07 .2 .8 SSM 2.0D 74 13 XX 2005 MAR 13 0300 4.83 36 0.84 120 34.30 4.71 63 .06 .1 .2 SLA 2.6D 45 3 XX 2005 MAR 13 0301 29.54 36 0.83 120 34.51 4.55 45 .06 .1 .2 SLA 2.4D 60 4 WW 2005 MAR 13 1952 38.35 38 45.41 122 43.35 2.05 41 .08 .2 .3 GEY 2.1D 35 2 AA 2005 MAR 13 2209 12.78 37 27.19 118 50.42 7.11 41 .07 .3 1.5 MOR 4.2L 89 11 WW 2005 MAR 13 2211 46.03 37 27.22 118 50.57 6.89 36 .06 .3 1.4 MOR 2.7D 129 11 WW 2005 MAR 13 2258 41.29 37 27.36 118 50.32 7.61 39 .05 .2 .9 MOR 2.3D 128 11 IQ 2005 MAR 14 0601 50.33 38 46.42 122 45.73 2.38 39 .06 .2 .3 GEY 2.0D 37 0 YW 2005 MAR 14 0710 59.09 36 34.63 121 10.22 2.37 46 .06 .1 .3 PIN 2.6D 67 2 WW 2005 MAR 14 1427 56.37 35 40.15 121 6.01 4.85 50 .07 .3 .6 SSM 2.6D 120 5 XX 2005 MAR 14 1514 49.20 35 40.05 121 6.13 5.02 33 .08 .2 .4 SSM 2.0D 123 5 XX 2005 MAR 14 1831 3.33 35 40.02 121 6.07 5.15 47 .07 .2 .5 SSM 2.3D 123 5 XX 2005 MAR 14 2325 14.58 35 41.75 121 8.92 5.25 36 .07 .2 .3 SSM 2.2D 120 2 XX 2005 MAR 14 2355 1.36 35 40.19 121 3.22 5.15 37 .08 .2 .6 SSM 2.2D 96 9 XX 2005 MAR 15 0114 37.81 35 40.16 121 5.94 5.01 44 .08 .2 .5 SSM 2.2D 119 5 XX 2005 MAR 15 0328 54.27 38 48.79 122 49.04 2.66 38 .08 .2 .3 GEY 2.0D 41 1 YW 2005 MAR 15 0516 35.29 38 47.96 122 48.48 3.74 50 .07 .2 .3 GEY 2.8D 25 1 WW 2005 MAR 15 0959 7.06 38 48.29 122 48.48 2.30 43 .07 .2 .2 GEY 2.1D 36 1 YW 2005 MAR 15 2050 14.54 38 49.17 122 48.38 4.60 19 .03 .2 .4 GEY 2.4D 44 2 WW
