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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 1:19:57 AM (PDT) on Friday, October 4, 2013.
The magnitude 0.8 event occurred 4 km (2 miles) ESE of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).




Magnitude 0.8 - duration magnitude (Md)
Time Friday, October 4, 2013 at 1:19:57 AM (PDT)
Friday, October 4, 2013 at 8:19:57 (UTC)
Distance from The Geysers, CA - 4 km (2 miles) ESE (102 degrees)
Lower Lake, CA - 19 km (12 miles) SW (225 degrees)
Cloverdale, CA - 22 km (14 miles) E (94 degrees)
Santa Rosa, CA - 39 km (24 miles) N (354 degrees)
Coordinates 38 deg. 47.4 min. N (38.791N), 122 deg. 45.7 min. W (122.761W)
Depth 2.2 km (1.4 miles)
Quality Excellent
Location Quality Parameters Nst= 11, Nph= 11, Dmin=2 km, Rmss=0.07 sec, Erho=0.3 km, Erzz=0.7 km, Gp=90 degrees
Event ID nc72080851
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