== PRELIMINARY EARTHQUAKE REPORT ==
California Integrated Seismic Net
USGS/ Caltech/ CGS/ UCB/ UCSD/ UNR

Version #2: This report supersedes any earlier reports of this event.
This event has been reviewed by a seismologist.

A microearthquake occurred at 2:24:55 AM (PDT) on Friday, May 8, 2009.
The magnitude 1.2 event occurred 4 km (3 miles) W of Cobb, CA.
The hypocentral depth is 3 km ( 2 miles).


Magnitude 1.2 - duration magnitude (Md)
Time Friday, May 8, 2009 at 2:24:55 AM (PDT)
Friday, May 8, 2009 at 9:24:55 (UTC)
Distance from Cobb, CA - 4 km (3 miles) W (272 degrees)
The Geysers, CA - 5 km (3 miles) NE (34 degrees)
Anderson Springs, CA - 10 km (6 miles) NW (314 degrees)
Santa Rosa, CA - 44 km (27 miles) N (352 degrees)
Sacramento, CA - 117 km (73 miles) WNW (286 degrees)
Coordinates 38 deg. 50.2 min. N (38.837N), 122 deg. 46.4 min. W (122.774W)
Depth 2.7 km (1.7 miles)
Location Quality Good
Location Quality Parameters Nst= 28, Nph= 28, Dmin=1 km, Rmss=0.06 sec, Erho=0.2 km, Erzz=0.3 km, Gp=100.8 degrees
Event ID# nc51221213
Additional Information map with fault names
Google Earth KML (Requires Google Earth.)
Waveforms

Did you feel it? || Shake Map North
For more information, see http://quake.wr.usgs.gov/ || Contacts

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