== 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 11:08:19 AM (PDT) on Monday, May 4, 2009.
The magnitude 0.7 event occurred 4 km (2 miles) SW of Anderson Springs, CA.
The hypocentral depth is 2 km ( 1 mile).
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Magnitude |
0.7 - duration magnitude (Md) |
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Time |
Monday, May 4, 2009 at 11:08:19 AM (PDT)
Monday, May 4, 2009 at 18:08:19 (UTC)
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Distance from |
Anderson Springs, CA - 4 km (2 miles) SW (226 degrees)
Cobb, CA - 9 km (6 miles) S (181 degrees)
The Geysers, CA - 9 km (6 miles) SE (126 degrees)
Santa Rosa, CA - 34 km (21 miles) N (357 degrees)
Sacramento, CA - 111 km (69 miles) WNW (282 degrees)
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Coordinates |
38 deg. 45.0 min. N (38.751N), 122 deg. 43.5 min. W (122.724W) |
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Depth |
2 km (1.2 miles) |
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Location Quality |
Excellent |
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Location Quality Parameters |
Nst= 12, Nph= 12, Dmin=2 km, Rmss=0.08 sec, Erho=0.3 km, Erzz=0.7 km, Gp=75.6 degrees
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Event ID# |
nc51221003 |
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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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