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 11:19:20 AM (PDT) on Wednesday, August 20, 2025.
The magnitude 0.4 event occurred 8 km (5 miles) NNE (24 degrees) of Coso Junction, CA.
The hypocentral depth is 4 km ( 3 miles).


Magnitude 0.4 - local magnitude (Ml)
Time Wednesday, August 20, 2025 at 11:19:20 AM (PDT)
Wednesday, August 20, 2025 at 18:19:20 (UTC)
Distance from Coso Junction, CA - 8 km (5 miles) NNE (24 degrees)
Little Lake, CA - 20 km (12 miles) N (359 degrees)
Olancha, CA - 21 km (13 miles) SSE (156 degrees)
Inyokern, CA - 52 km (33 miles) N (350 degrees)
Lone Pine, CA - 55 km (34 miles) SSE (165 degrees)
Coordinates 36 deg. 6.7 min. N (36.112N), 117 deg. 54.7 min. W (117.912W)
Depth 4.18 km (2.60 miles)
Quality Fair
Location Quality Parameters Nst=6, Nph=8, Dmin=5.2 km, Rmss=0.06 sec, Erho=0.4 km, Erzz=0.38 km, Gp=264 degrees
Event ID# ci37739204
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