== 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 10:16:08 PM (PDT) on Thursday, September 11, 2008.
The magnitude 1.8 event occurred 16 km (10 miles) SSE of Tres Pinos, CA.
The hypocentral depth is 7 km ( 4 miles).


Magnitude 1.8 - duration magnitude (Md)
Time Thursday, September 11, 2008 at 10:16:08 PM (PDT)
Friday, September 12, 2008 at 5:16:08 (UTC)
Distance from Tres Pinos, CA - 16 km (10 miles) SSE (167 degrees)
Pinnacles, CA - 18 km (11 miles) NW (318 degrees)
Gonzales, CA - 22 km (13 miles) NE (43 degrees)
Hollister, CA - 24 km (15 miles) SSE (154 degrees)
San Jose City Hall, CA - 94 km (58 miles) SE (144 degrees)
Coordinates 36 deg. 39.1 min. N (36.651N), 121 deg. 16.7 min. W (121.279W)
Depth 6.7 km (4.2 miles)
Location Quality Excellent
Location Quality Parameters Nst= 23, Nph= 23, Dmin=2 km, Rmss=0.04 sec, Erho=0.2 km, Erzz=0.9 km, Gp=64.8 degrees
Event ID# nc51207955
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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