U.S. Geological Survey, Menlo Park, California.
U.C. Berkeley Seismological Laboratory, Berkeley, California.
(members of the Council of the National Seismic System)
NOTE: Information in this page is updated regularly. If you are accessing
this page via the Web, you may need to RELOAD the page to get current data.
Below is a list of magnitude 2 or greater earthquakes recorded by the USGS Northern California Seismic Network and the UCB Berkeley Digital Seismic Network during the last 3 days. All times are in UTC (Universal Time), which is 8 hours ahead of PST and 7 hours ahead of PDT. This catalog is valid for Central and Northern California (approximately north of San Luis Obispo along the coast and 37 degrees N at the Nevada border).
Magnitudes are reported as local magnitude (Ml) or coda duration magnitude (Md) for small events. Depth is in kilometers. Q is location quality, where the quality of the location solution is A=E (A=good, E=bad), and '*' indicates the solution is from an automated system and has not been reviewed by staff.
Note: This is PRELIMINARY information. Earthquakes before 00:00 UT today which occur > ~50 km outside the boundaries of the network will not be listed unless reviewed by seismologists.
Catalogs for other regions of the country can be obtained by using `finger quake@computer' for the following computers:
geophys.washington.edu (Washington and Oregon) seismo.unr.edu (Nevada) scec.gps.caltech.edu (southern California) eqinfo.seis.utah.edu (Utah) fm.gi.alaska.edu (Alaska) slueas.slu.edu (central US) gldfs.cr.usgs.gov (large world-wide) tako.wr.usgs.gov (Hawaii)WWW access: for these lists, maps, and more go to http://quake.usgs.gov
Updated at Wed Jun 17 15:56:00 GMT 2009 a.k.a. Wed Jun 17 08:56:00 PDT 2009
****************************************************************************** DATE-(UTC)-TIME LAT LON DEP MAG Q COMMENTS yy/mm/dd hh:mm:ss deg. deg. km ------------------------------------------------------------------------------ 09/06/14 18:27:25 38.79N 122.75W 1.7 2.9Md A* 5 km E of The Geysers, CA 09/06/15 06:05:27 37.66N 122.50W 9.8 2.3Md B* 5 km NNW of Pacifica, CA 09/06/15 06:29:24 38.81N 122.74W 2.2 2.1Md A* 4 km SSW of Cobb, CA 09/06/15 17:18:49 40.40N 124.38W 19.4 2.5Md D* 12 km NW of Petrolia, CA 09/06/16 02:18:46 36.77N 121.48W 4.8 2.9Md B* 10 km SSE of San Juan Bautista, CA 09/06/16 04:48:36 35.59N 121.22W 3.8 2.4Md C* 6 km SSW of San Simeon, CA 09/06/16 08:18:55 37.77N 121.98W 9.0 2.0Md A* 3 km WNW of San Ramon, CA 09/06/16 09:14:10 41.40N 123.45W 5.0 2.4Md C* 4 km NE of Somes Bar, CA 09/06/16 11:53:47 36.57N 121.16W 3.1 2.9Md A* 4 km NNW of Pinnacles, CA 09/06/16 12:23:49 38.80N 122.77W 1.1 2.0Md A* 3 km E of The Geysers, CA 09/06/16 21:11:03 38.81N 122.83W 9.3 2.4Md C* 2 km WNW of The Geysers, CA 09/06/17 05:05:43 35.68N 121.12W 5.5 2.7Md B* 8 km ENE of San Simeon, CA 09/06/17 05:56:23 37.42N 118.62W 12.8 2.8Md A* 2 km W of Round Valley, CA 09/06/17 06:51:47 38.78N 122.76W 0.0 2.2Md A* 4 km ESE of The Geysers, CA 09/06/17 09:12:19 39.65N 122.83W 15.2 2.6Md B* 9 km W of Alder Springs, CA 09/06/17 10:34:34 39.52N 119.92W 0.4 2.6Md C* 3 km ENE of Verdi-Mogul, NV 09/06/17 13:11:34 40.74N 124.19W 14.5 2.2Md B* 2 km NE of Humboldt Hill, CA