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== PRELIMINARY EARTHQUAKE REPORT ==

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



Version #5: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 5:09:25 AM (PDT) on Tuesday, September 10, 2019.
The magnitude 1.0 event occurred 19 km (12 miles) ESE of Yosemite Valley, CA.
The hypocentral depth is 4 km ( 2 miles).



Magnitude 1.0 - duration magnitude (Md)
Time Tuesday, September 10, 2019 at 5:09:25 AM (PDT)
Tuesday, September 10, 2019 at 12:09:25 (UTC)
Distance from Yosemite Valley, CA - 19 km (12 miles) ESE (117 degrees)
Mammoth Lakes, CA - 36 km (22 miles) W (274 degrees)
Oakhurst, CA - 44 km (27 miles) NNE (33 degrees)
Ahwahnee, CA - 45 km (28 miles) NE (43 degrees)
Midpines, CA - 49 km (31 miles) ENE (75 degrees)
Coordinates 37 deg. 39.6 min. N (37.660N), 119 deg. 22.9 min. W (119.381W)
Depth 3.69 km (2.3 miles)
Quality Poor
Location Quality Parameters Nst=11, Nph=11, Dmin=26.8 km, Rmss=0.09 sec, Erho=1.04 km, Erzz=10.12 km, Gp=208 degrees
Event ID# nc73268535
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