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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 5:54:11 AM (PDT) on Wednesday, May 7, 2008.
The magnitude 1.1 event occurred 2 km (1 miles) WNW of The Geysers, CA.
The hypocentral depth is 8 km ( 5 miles).


Magnitude 1.1 - duration magnitude (Md)
Time Wednesday, May 7, 2008 at 5:54:11 AM (PDT)
Wednesday, May 7, 2008 at 12:54:11 (UTC)
Distance from The Geysers, CA - 2 km (1 miles) WNW (300 degrees)
Cobb, CA - 10 km (6 miles) WSW (252 degrees)
Anderson Springs, CA - 12 km (8 miles) WNW (287 degrees)
Santa Rosa, CA - 41 km (26 miles) NNW (345 degrees)
San Francisco City Hall, CA - 120 km (75 miles) NNW (343 degrees)
Coordinates 38 deg. 48.5 min. N (38.809N), 122 deg. 49.7 min. W (122.829W)
Depth 7.5 km (4.7 miles)
Location Quality Fair
Location Quality Parameters Nst= 8, Nph= 8, Dmin=0 km, Rmss=0.01 sec, Erho=2.9 km, Erzz=2.6 km, Gp=136.8 degrees
Event ID# nc40217185
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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