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 event has been reviewed by a seismologist.

A micro earthquake occurred at 9:42:02 AM (PDT) on Thursday, August 28, 2025.
The magnitude 1.0 event occurred 8 km (5 miles) NE (54 degrees) of Coso Junction, CA.
The hypocentral depth is 3 km ( 2 miles).


Magnitude 1.0 - local magnitude (Ml)
Time Thursday, August 28, 2025 at 9:42:02 AM (PDT)
Thursday, August 28, 2025 at 16:42:02 (UTC)
Distance from Coso Junction, CA - 8 km (5 miles) NE (54 degrees)
Little Lake, CA - 17 km (10 miles) N (9 degrees)
Olancha, CA - 25 km (15 miles) SSE (153 degrees)
Inyokern, CA - 49 km (31 miles) N (353 degrees)
Ridgecrest, CA - 55 km (34 miles) NNW (341 degrees)
Coordinates 36 deg. 5.1 min. N (36.085N), 117 deg. 52.7 min. W (117.879W)
Depth 2.54 km (1.60 miles)
Quality Excellent
Location Quality Parameters Nst=19, Nph=32, Dmin=4.2 km, Rmss=0.12 sec, Erho=0.15 km, Erzz=0.19 km, Gp=56 degrees
Event ID# ci41277480
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