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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 7:59:58 PM (PDT) on Thursday, May 21, 2020.
The magnitude 1.2 event occurred 14 km (9 miles) S of Mammoth Lakes, CA.
The hypocentral depth is 2 km ( 2 miles).



Magnitude 1.2 - duration magnitude (Md)
Time Thursday, May 21, 2020 at 7:59:58 PM (PDT)
Friday, May 22, 2020 at 2:59:58 (UTC)
Distance from Mammoth Lakes, CA - 14 km (9 miles) S (186 degrees)
West Bishop, CA - 51 km (31 miles) WNW (290 degrees)
Dixon Lane-Meadow Creek, CA - 53 km (33 miles) WNW (285 degrees)
Bishop, CA - 56 km (35 miles) WNW (287 degrees)
Yosemite Valley, CA - 57 km (36 miles) ESE (116 degrees)
Coordinates 37 deg. 30.8 min. N (37.513N), 118 deg. 59.8 min. W (118.996W)
Depth 2.47 km (1.5 miles)
Quality Fair
Location Quality Parameters Nst=14, Nph=20, Dmin=11.2 km, Rmss=0.11 sec, Erho=0.36 km, Erzz=2.12 km, Gp=169 degrees
Event ID# nc73392746
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