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

Version #1: This report supersedes any earlier reports of this event.
This is a computer-generated message. This event has not yet been reviewed by a seismologist.

A microearthquake occurred at 12:46:36 PM (PDT) on Wednesday, May 7, 2008.
The magnitude 0.4 event occurred 4 km (2 miles) ESE of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).


Magnitude 0.4 - duration magnitude (Md)
Time Wednesday, May 7, 2008 at 12:46:36 PM (PDT)
Wednesday, May 7, 2008 at 19:46:36 (UTC)
Distance from The Geysers, CA - 4 km (2 miles) ESE (103 degrees)
Cobb, CA - 6 km (4 miles) SW (215 degrees)
Anderson Springs, CA - 6 km (4 miles) WNW (285 degrees)
Santa Rosa, CA - 38 km (24 miles) N (352 degrees)
Sacramento, CA - 115 km (72 miles) WNW (283 degrees)
Coordinates 38 deg. 47.4 min. N (38.790N), 122 deg. 45.8 min. W (122.763W)
Depth 2.2 km (1.4 miles)
Location Quality Excellent
Location Quality Parameters Nst= 11, Nph= 11, Dmin=1 km, Rmss=0.03 sec, Erho=0.3 km, Erzz=0.5 km, Gp=90 degrees
Event ID# nc51202305
Additional Information 2-degree map
Google Earth KML (Requires Google Earth.)
Waveforms

For more information, see http://quake.wr.usgs.gov/

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