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== PRELIMINARY EARTHQUAKE REPORT ==

Southern California Seismic Network: a cooperative project of
U.S. Geological Survey, Pasadena California
Caltech Seismological Laboratory, Pasadena, 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 5:10:27 AM (PDT) on Wednesday, September 11, 2019.
The magnitude 1.8 event occurred 25 km (15 miles) SSE of Trona, CA.
The hypocentral depth is 3 km ( 2 miles).



Magnitude 1.8 - local magnitude (Ml)
Time Wednesday, September 11, 2019 at 5:10:27 AM (PDT)
Wednesday, September 11, 2019 at 12:10:27 (UTC)
Distance from Trona, CA - 25 km (15 miles) SSE (159 degrees)
Searles Valley, CA - 26 km (16 miles) SSE (155 degrees)
Ridgecrest, CA - 36 km (23 miles) ESE (102 degrees)
Johannesburg, CA - 38 km (23 miles) ENE (57 degrees)
Inyokern, CA - 49 km (30 miles) ESE (102 degrees)
Coordinates 35 deg. 33.3 min. N (35.555N), 117 deg. 17.0 min. W (117.283W)
Depth 3.22 km (2.0 miles)
Quality Good
Location Quality Parameters Nst=32, Nph=50, Dmin=3.8 km, Rmss=0.18 sec, Erho=0.23 km, Erzz=0.3 km, Gp=56 degrees
Event ID# ci38826567
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