== 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 4:21:58 PM (PDT) on Monday, May 4, 2009.
The magnitude 0.9 event occurred 4 km (3 miles) E of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).
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Magnitude |
0.9 - duration magnitude (Md) |
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Time |
Monday, May 4, 2009 at 4:21:58 PM (PDT)
Monday, May 4, 2009 at 23:21:58 (UTC)
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Distance from |
The Geysers, CA - 4 km (3 miles) E (100 degrees)
Cobb, CA - 6 km (4 miles) SSW (213 degrees)
Anderson Springs, CA - 6 km (4 miles) WNW (288 degrees)
Santa Rosa, CA - 38 km (24 miles) N (353 degrees)
Sacramento, CA - 115 km (71 miles) WNW (284 degrees)
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Coordinates |
38 deg. 47.5 min. N (38.792N), 122 deg. 45.5 min. W (122.759W) |
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Depth |
3.1 km (1.9 miles) |
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Location Quality |
Excellent |
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Location Quality Parameters |
Nst= 19, Nph= 19, Dmin=1 km, Rmss=0.07 sec, Erho=0.3 km, Erzz=0.5 km, Gp=54 degrees
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Event ID# |
nc51221019 |
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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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