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== PRELIMINARY EARTHQUAKE REPORT ==

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



Version #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 5:00:32 PM (PST) on Wednesday, February 12, 2020.
The magnitude 1.4 event occurred 44 km (28 miles) NNE (33 degrees) of Mammoth Lakes, CA.
The hypocentral depth is 4 km ( 3 miles).



Magnitude 1.4 - duration magnitude (Md)
Time Wednesday, February 12, 2020 at 5:00:32 PM (PST)
Thursday, February 13, 2020 at 1:00:32 (UTC)
Distance from Mammoth Lakes, CA - 44 km (28 miles) NNE (33 degrees)
Hawthorne, NV - 62 km (39 miles) S (186 degrees)
Dixon Lane-Meadow Creek, CA - 70 km (43 miles) NNW (339 degrees)
West Bishop, CA - 71 km (44 miles) NNW (342 degrees)
Bishop, CA - 72 km (45 miles) NNW (338 degrees)
Coordinates 37 deg. 58.2 min. N (37.970N), 118 deg. 42.1 min. W (118.702W)
Depth 4.41 km (2.7 miles)
Quality Fair
Location Quality Parameters Nst=17, Nph=22, Dmin=31.5 km, Rmss=0.21 sec, Erho=0.54 km, Erzz=8.88 km, Gp=126 degrees
Event ID# nc73340295
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