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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 1:29:02 AM (PDT) on Friday, July 31, 2020.
The magnitude 0.2 event occurred 10 km (6 miles) ENE (78 degrees) of Mammoth Lakes, CA.
The hypocentral depth is 1 km ( 1 mile).



Magnitude 0.2 - duration magnitude (Md)
Time Friday, July 31, 2020 at 1:29:02 AM (PDT)
Friday, July 31, 2020 at 8:29:02 (UTC)
Distance from Mammoth Lakes, CA - 10 km (6 miles) ENE (78 degrees)
West Bishop, CA - 49 km (31 miles) NW (312 degrees)
Dixon Lane-Meadow Creek, CA - 50 km (31 miles) NW (307 degrees)
Bishop, CA - 53 km (33 miles) NW (308 degrees)
Yosemite Valley, CA - 63 km (39 miles) E (99 degrees)
Coordinates 37 deg. 39.3 min. N (37.655N), 118 deg. 52.4 min. W (118.873W)
Depth 1.45 km (0.9 miles)
Quality Good
Location Quality Parameters Nst=11, Nph=14, Dmin=2.4 km, Rmss=0.05 sec, Erho=0.47 km, Erzz=0.4 km, Gp=140 degrees
Event ID# nc73436346
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