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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 2:19:38 AM (PDT) on Thursday, May 9, 2013.
The magnitude 1.5 event occurred 11 km (7 miles) ESE of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).




Magnitude 1.5 - duration magnitude (Md)
Time Thursday, May 9, 2013 at 2:19:38 AM (PDT)
Thursday, May 9, 2013 at 9:19:38 (UTC)
Distance from The Geysers, CA - 11 km (7 miles) ESE (121 degrees)
Lower Lake, CA - 20 km (12 miles) SSW (204 degrees)
Healdsburg, CA - 21 km (13 miles) NE (43 degrees)
Santa Rosa, CA - 34 km (21 miles) N (2 degrees)
Coordinates 38 deg. 45.0 min. N (38.749N), 122 deg. 42.1 min. W (122.702W)
Depth 2.3 km (1.4 miles)
Quality Excellent
Location Quality Parameters Nst= 20, Nph= 20, Dmin=1 km, Rmss=0.08 sec, Erho=0.4 km, Erzz=0.4 km, Gp=75.6 degrees
Event ID nc71988461
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