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

A micro earthquake occurred at 1:14:08 PM (PDT) on Wednesday, August 27, 2025.
The magnitude 1.6 event occurred 9 km (5 miles) NE (56 degrees) of Running Springs, CA.
The hypocentral depth is 1 km ( 1 mile).


Magnitude 1.6 - local magnitude (Ml)
Time Wednesday, August 27, 2025 at 1:14:08 PM (PDT)
Wednesday, August 27, 2025 at 20:14:08 (UTC)
Distance from Running Springs, CA - 9 km (5 miles) NE (56 degrees)
Big Bear Lake, CA - 11 km (7 miles) W (274 degrees)
Lake Arrowhead, CA - 15 km (9 miles) E (89 degrees)
Big Bear City, CA - 17 km (11 miles) W (266 degrees)
Highland, CA - 21 km (13 miles) NE (50 degrees)
Coordinates 34 deg. 15.1 min. N (34.252N), 117 deg. 1.8 min. W (117.030W)
Depth 1.29 km (0.80 miles)
Quality Good
Location Quality Parameters Nst=65, Nph=114, Dmin=2.4 km, Rmss=0.19 sec, Erho=0.13 km, Erzz=0.23 km, Gp=25 degrees
Event ID# ci41276832
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