== 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 2:52:53 AM (PDT) on Thursday, September 11, 2008.
The magnitude 1.6 event occurred 3 km (2 miles) SW of Anderson Springs, CA.
The hypocentral depth is 1 km ( 1 mile).


Magnitude 1.6 - duration magnitude (Md)
Time Thursday, September 11, 2008 at 2:52:53 AM (PDT)
Thursday, September 11, 2008 at 9:52:53 (UTC)
Distance from Anderson Springs, CA - 3 km (2 miles) SW (235 degrees)
Cobb, CA - 8 km (5 miles) S (179 degrees)
The Geysers, CA - 9 km (5 miles) ESE (121 degrees)
Santa Rosa, CA - 35 km (21 miles) N (358 degrees)
Sacramento, CA - 111 km (69 miles) WNW (282 degrees)
Coordinates 38 deg. 45.5 min. N (38.759N), 122 deg. 43.3 min. W (122.722W)
Depth 1.2 km (0.7 miles)
Location Quality Good
Location Quality Parameters Nst= 12, Nph= 12, Dmin=2 km, Rmss=0.03 sec, Erho=0.3 km, Erzz=0.6 km, Gp=97.2 degrees
Event ID# nc51207921
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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