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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 7:47:04 PM (PDT) on Wednesday, May 7, 2008.
The magnitude 0.5 event occurred 2 km (1 miles) NE of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).


Magnitude 0.5 - duration magnitude (Md)
Time Wednesday, May 7, 2008 at 7:47:04 PM (PDT)
Thursday, May 8, 2008 at 2:47:04 (UTC)
Distance from The Geysers, CA - 2 km (1 miles) NE (48 degrees)
Cobb, CA - 6 km (4 miles) WSW (245 degrees)
Anderson Springs, CA - 9 km (6 miles) WNW (296 degrees)
Santa Rosa, CA - 41 km (25 miles) N (350 degrees)
Sacramento, CA - 118 km (73 miles) WNW (284 degrees)
Coordinates 38 deg. 48.7 min. N (38.812N), 122 deg. 47.3 min. W (122.788W)
Depth 3 km (1.9 miles)
Location Quality Good
Location Quality Parameters Nst= 9, Nph= 9, Dmin=1 km, Rmss=0.04 sec, Erho=0.7 km, Erzz=1.9 km, Gp=93.6 degrees
Event ID# nc51202322
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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