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

A micro earthquake occurred at 11:57:26 PM (PDT) on Wednesday, September 24, 2025.
The magnitude 0.8 event occurred 8 km (5 miles) N (3 degrees) of Big Bear City, CA.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 0.8 - local magnitude (Ml)
Time Wednesday, September 24, 2025 at 11:57:26 PM (PDT)
Thursday, September 25, 2025 at 6:57:26 (UTC)
Distance from Big Bear City, CA - 8 km (5 miles) N (3 degrees)
Big Bear Lake, CA - 12 km (7 miles) NNE (33 degrees)
Lucerne Valley, CA - 17 km (10 miles) SE (136 degrees)
Running Springs, CA - 28 km (18 miles) ENE (60 degrees)
Lake Arrowhead, CA - 33 km (21 miles) ENE (73 degrees)
Coordinates 34 deg. 20.0 min. N (34.334N), 116 deg. 50.4 min. W (116.841W)
Depth 4.74 km (2.90 miles)
Quality Fair
Location Quality Parameters Nst=5, Nph=8, Dmin=2.0 km, Rmss=0.08 sec, Erho=0.53 km, Erzz=0.63 km, Gp=161 degrees
Event ID# ci37744228
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