== PRELIMINARY EARTHQUAKE REPORT ==
California Integrated Seismic Net
USGS/
Caltech/
CGS/
UCB/
UCSD/
UNR
Version #0: 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 6:00:38 PM (PDT) on Thursday, August 6, 2009.
The magnitude 1.0 event occurred 4 km (2 miles) WSW of Cobb, CA.
The hypocentral depth is 1 km ( 1 mile).
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Magnitude |
1.0 - duration magnitude (Md) |
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Time |
Thursday, August 6, 2009 at 6:00:38 PM (PDT)
Friday, August 7, 2009 at 1:00:38 (UTC)
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Distance from |
Cobb, CA - 4 km (2 miles) WSW (255 degrees)
The Geysers, CA - 5 km (3 miles) NE (48 degrees)
Anderson Springs, CA - 9 km (5 miles) NW (311 degrees)
Santa Rosa, CA - 42 km (26 miles) N (353 degrees)
Sacramento, CA - 117 km (72 miles) WNW (285 degrees)
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Coordinates |
38 deg. 49.6 min. N (38.826N), 122 deg. 46.0 min. W (122.766W) |
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Depth |
0.9 km (0.6 miles) |
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Location Quality |
Good |
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Location Quality Parameters |
Nst= 9, Nph= 9, Dmin=2 km, Rmss=0.05 sec, Erho=0.3 km, Erzz=1.1 km, Gp=140.4 degrees
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Event ID# |
nc71261221 |
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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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