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== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California



Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 3:59:25 PM (PDT) on Friday, May 3, 2013.
The magnitude 1.9 event occurred 18 km (11 miles) NE (39 degrees) of Nice, CA.
The hypocentral depth is 12 km ( 7 miles).



Magnitude 1.9 - duration magnitude (Md)
Time Friday, May 3, 2013 at 3:59:25 PM (PDT)
Friday, May 3, 2013 at 22:59:25 (UTC)
Distance from Nice, CA - 18 km (11 miles) NE (39 degrees)
Lucerne, CA - 19 km (12 miles) NNE (21 degrees)
Clearlake Oaks, CA - 25 km (15 miles) N (351 degrees)
Ukiah, CA - 44 km (27 miles) ENE (75 degrees)
Coordinates 39 deg. 14.9 min. N (39.248N), 122 deg. 43.0 min. W (122.717W)
Depth 11.7 km (7.3 miles)
Quality Good
Location Quality Parameters Nst= 29, Nph= 29, Dmin=12 km, Rmss=0.08 sec, Erho=0.2 km, Erzz=0.6 km, Gp=50.4 degrees
Event ID# nc71985006
Additional Information map || waveforms
   Waveforms
NCSS First Motion Mechanism 1

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