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Southern California Earthquake Data Center

Recent Earthquakes

Recent Earthquakes in California and Nevada

== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California

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 micro earthquake occurred at 7:21:59 PM (PDT) on Friday, May 3, 2013.
The magnitude 0.4 event occurred 5 km (3 miles) NNW of The Geysers, CA.
The hypocentral depth is 1 km ( 1 mile).




Magnitude 0.4 - duration magnitude (Md)
Time Friday, May 3, 2013 at 7:21:59 PM (PDT)
Saturday, May 4, 2013 at 2:21:59 (UTC)
Distance from The Geysers, CA - 5 km (3 miles) NNW (344 degrees)
Kelseyville, CA - 15 km (9 miles) S (175 degrees)
Cloverdale, CA - 17 km (11 miles) ENE (75 degrees)
Santa Rosa, CA - 46 km (29 miles) NNW (348 degrees)
Coordinates 38 deg. 50.7 min. N (38.845N), 122 deg. 49.4 min. W (122.824W)
Depth 1.4 km (0.9 miles)
Quality Good
Location Quality Parameters Nst= 9, Nph= 9, Dmin=1 km, Rmss=0.32 sec, Erho=1.3 km, Erzz=6.2 km, Gp=82.8 degrees
Event ID nc71985066
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