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 10:34:54 PM (PDT) on Thursday, September 25, 2025.
The magnitude 1.2 event occurred 10 km (6 miles) NW of Big Bear Lake, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 1.2 - local magnitude (Ml)
Time Thursday, September 25, 2025 at 10:34:54 PM (PDT)
Friday, September 26, 2025 at 5:34:54 (UTC)
Distance from Big Bear Lake, CA - 10 km (6 miles) NW (318 degrees)
Big Bear City, CA - 14 km (9 miles) WNW (293 degrees)
Lucerne Valley, CA - 15 km (9 miles) S (186 degrees)
Running Springs, CA - 16 km (10 miles) NE (45 degrees)
Lake Arrowhead, CA - 20 km (12 miles) ENE (70 degrees)
Coordinates 34 deg. 18.7 min. N (34.311N), 116 deg. 59.1 min. W (116.985W)
Depth 6.42 km (4.00 miles)
Quality Good
Location Quality Parameters Nst=59, Nph=107, Dmin=6.3 km, Rmss=0.15 sec, Erho=0.14 km, Erzz=0.37 km, Gp=46 degrees
Event ID# ci41098351
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