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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 3:00:13 AM (PDT) on Thursday, May 8, 2008.
The magnitude 1.4 event occurred 4 km (2 miles) NW of The Geysers, CA.
The hypocentral depth is 1 km ( 1 mile).


Magnitude 1.4 - duration magnitude (Md)
Time Thursday, May 8, 2008 at 3:00:13 AM (PDT)
Thursday, May 8, 2008 at 10:00:13 (UTC)
Distance from The Geysers, CA - 4 km (2 miles) NW (323 degrees)
Cobb, CA - 10 km (6 miles) W (263 degrees)
Anderson Springs, CA - 13 km (8 miles) WNW (295 degrees)
Santa Rosa, CA - 43 km (27 miles) NNW (345 degrees)
San Francisco City Hall, CA - 122 km (76 miles) NNW (343 degrees)
Coordinates 38 deg. 49.5 min. N (38.825N), 122 deg. 49.9 min. W (122.832W)
Depth 1.3 km (0.8 miles)
Location Quality Excellent
Location Quality Parameters Nst= 13, Nph= 13, Dmin=0 km, Rmss=0.04 sec, Erho=0.2 km, Erzz=0.3 km, Gp=75.6 degrees
Event ID# nc51202351
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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