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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 #1: 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 5:39:06 PM (PDT) on Wednesday, October 2, 2013.
The magnitude 1.8 event occurred 8 km (5 miles) ESE of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).




Magnitude 1.8 - duration magnitude (Md)
Time Wednesday, October 2, 2013 at 5:39:06 PM (PDT)
Thursday, October 3, 2013 at 0:39:06 (UTC)
Distance from The Geysers, CA - 8 km (5 miles) ESE (112 degrees)
Lower Lake, CA - 18 km (11 miles) SSW (212 degrees)
Healdsburg, CA - 22 km (14 miles) NE (36 degrees)
Santa Rosa, CA - 37 km (23 miles) N (359 degrees)
Coordinates 38 deg. 46.3 min. N (38.771N), 122 deg. 43.2 min. W (122.720W)
Depth 2.1 km (1.3 miles)
Quality Excellent
Location Quality Parameters Nst= 26, Nph= 26, Dmin=0 km, Rmss=0.09 sec, Erho=0.2 km, Erzz=0.4 km, Gp=43.2 degrees
Event ID nc72080386
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