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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 5:07:49 PM (PST) on Tuesday, February 11, 2020.
The magnitude 0.4 event occurred 10 km (6 miles) ENE (71 degrees) of Mammoth Lakes, CA.
The hypocentral depth is 3 km ( 2 miles).



Magnitude 0.4 - duration magnitude (Md)
Time Tuesday, February 11, 2020 at 5:07:49 PM (PST)
Wednesday, February 12, 2020 at 1:07:49 (UTC)
Distance from Mammoth Lakes, CA - 10 km (6 miles) ENE (71 degrees)
West Bishop, CA - 50 km (31 miles) NW (313 degrees)
Dixon Lane-Meadow Creek, CA - 51 km (31 miles) NW (308 degrees)
Bishop, CA - 54 km (33 miles) NW (309 degrees)
Yosemite Valley, CA - 63 km (39 miles) E (97 degrees)
Coordinates 37 deg. 40.0 min. N (37.666N), 118 deg. 52.1 min. W (118.869W)
Depth 3.34 km (2.1 miles)
Quality Good
Location Quality Parameters Nst=13, Nph=13, Dmin=3.5 km, Rmss=0.04 sec, Erho=0.53 km, Erzz=0.77 km, Gp=164 degrees
Event ID# nc73339920
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