== PRELIMINARY EARTHQUAKE REPORT ==
California Integrated Seismic Net
USGS/
Caltech/
CGS/
UCB/
UCSD/
UNR
Version #2: This report supersedes any earlier reports of this event.
This event has been reviewed by a seismologist.
A microearthquake occurred at 8:47:41 PM (PDT) on Monday, May 11, 2009.
The magnitude 1.0 event occurred 4 km (2 miles) NNE of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).
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Magnitude |
1.0 - duration magnitude (Md) |
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Time |
Monday, May 11, 2009 at 8:47:41 PM (PDT)
Tuesday, May 12, 2009 at 3:47:41 (UTC)
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Distance from |
The Geysers, CA - 4 km (2 miles) NNE (33 degrees)
Cobb, CA - 5 km (3 miles) W (260 degrees)
Anderson Springs, CA - 10 km (6 miles) NW (306 degrees)
Santa Rosa, CA - 43 km (26 miles) N (351 degrees)
Sacramento, CA - 118 km (73 miles) WNW (285 degrees)
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Coordinates |
38 deg. 49.6 min. N (38.827N), 122 deg. 46.9 min. W (122.782W) |
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Depth |
1.9 km (1.2 miles) |
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Location Quality |
Excellent |
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Location Quality Parameters |
Nst= 25, Nph= 25, Dmin=1 km, Rmss=0.05 sec, Erho=0.2 km, Erzz=0.3 km, Gp=57.6 degrees
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Event ID# |
nc51221421 |
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Additional Information |
map with fault names
Google Earth KML (Requires Google Earth.)
Waveforms
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Did you feel it? ||
Shake Map North
For more information, see http://quake.wr.usgs.gov/
|| Contacts
Back to map
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