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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 11:46:32 PM (PDT) on Tuesday, May 7, 2013.
The magnitude 0.4 event occurred 6 km (4 miles) SW of Mammoth Lakes, CA.
The hypocentral depth is 10 km ( 6 miles).



Magnitude 0.4 - duration magnitude (Md)
Time Tuesday, May 7, 2013 at 11:46:32 PM (PDT)
Wednesday, May 8, 2013 at 6:46:32 (UTC)
Distance from Mammoth Lakes, CA - 6 km (4 miles) SW (227 degrees)
Toms Place, CA - 31 km (19 miles) W (280 degrees)
Lee Vining, CA - 40 km (25 miles) SSE (168 degrees)
Yosemite Village, CA - 53 km (33 miles) ESE (106 degrees)
Coordinates 37 deg. 36.6 min. N (37.611N), 119 deg. 1.4 min. W (119.023W)
Depth 10.1 km (6.3 miles)
Quality Excellent
Location Quality Parameters Nst= 22, Nph= 22, Dmin=0 km, Rmss=0.07 sec, Erho=0.4 km, Erzz=0.3 km, Gp=75.6 degrees
Event ID# nc71987756
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