== 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 4:05:27 AM (PDT) on Monday, May 4, 2009.
The magnitude 0.5 event occurred 2 km (1 miles) W of Anderson Springs, CA.
The hypocentral depth is 4 km ( 2 miles).
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Magnitude |
0.5 - duration magnitude (Md) |
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Time |
Monday, May 4, 2009 at 4:05:27 AM (PDT)
Monday, May 4, 2009 at 11:05:27 (UTC)
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Distance from |
Anderson Springs, CA - 2 km (1 miles) W (268 degrees)
Cobb, CA - 7 km (4 miles) S (175 degrees)
The Geysers, CA - 8 km (5 miles) ESE (108 degrees)
Santa Rosa, CA - 36 km (23 miles) N (359 degrees)
Sacramento, CA - 111 km (69 miles) WNW (283 degrees)
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Coordinates |
38 deg. 46.5 min. N (38.775N), 122 deg. 42.9 min. W (122.715W) |
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Depth |
4.1 km (2.5 miles) |
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Location Quality |
Good |
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Location Quality Parameters |
Nst= 8, Nph= 8, Dmin=0 km, Rmss=0.04 sec, Erho=1.1 km, Erzz=1.4 km, Gp=115.2 degrees
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Event ID# |
nc51220977 |
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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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