Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

Southern California Seismic Network: a cooperative project of
U.S. Geological Survey, Pasadena California
Caltech Seismological Laboratory, Pasadena, California


Version #4: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.

A micro earthquake occurred at 0:33:52 AM (PDT) on Tuesday, September 9, 2025.
The magnitude 1.0 event occurred 31 km (19 miles) N (10 degrees) of Trona, CA.
The hypocentral depth is 2 km ( 1 mile).


Magnitude 1.0 - local magnitude (Ml)
Time Tuesday, September 9, 2025 at 0:33:52 AM (PDT)
Tuesday, September 9, 2025 at 7:33:52 (UTC)
Distance from Trona, CA - 31 km (19 miles) N (10 degrees)
Searles Valley, CA - 31 km (19 miles) NNE (14 degrees)
Little Lake, CA - 54 km (34 miles) ENE (78 degrees)
Coso Junction, CA - 57 km (35 miles) E (90 degrees)
Ridgecrest, CA - 57 km (35 miles) NE (35 degrees)
Coordinates 36 deg. 2.3 min. N (36.039N), 117 deg. 19.0 min. W (117.317W)
Depth 1.50 km (0.90 miles)
Quality Fair
Location Quality Parameters Nst=21, Nph=34, Dmin=15.6 km, Rmss=0.21 sec, Erho=0.41 km, Erzz=0.55 km, Gp=111 degrees
Event ID# ci41286824
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