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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 7:51:30 PM (PDT) on Friday, July 31, 2020.
The magnitude 0.2 event occurred 8 km (5 miles) ESE of Mammoth Lakes, CA.
The hypocentral depth is 6 km ( 4 miles).



Magnitude 0.2 - duration magnitude (Md)
Time Friday, July 31, 2020 at 7:51:30 PM (PDT)
Saturday, August 1, 2020 at 2:51:30 (UTC)
Distance from Mammoth Lakes, CA - 8 km (5 miles) ESE (111 degrees)
West Bishop, CA - 48 km (30 miles) NW (306 degrees)
Dixon Lane-Meadow Creek, CA - 49 km (31 miles) WNW (301 degrees)
Bishop, CA - 52 km (32 miles) WNW (302 degrees)
Yosemite Valley, CA - 62 km (38 miles) ESE (103 degrees)
Coordinates 37 deg. 36.7 min. N (37.611N), 118 deg. 53.7 min. W (118.895W)
Depth 5.87 km (3.6 miles)
Quality Fair
Location Quality Parameters Nst=5, Nph=7, Dmin=1.8 km, Rmss=0.09 sec, Erho=2.13 km, Erzz=3.06 km, Gp=159 degrees
Event ID# nc73436746
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