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 10:37:52 PM (PDT) on Monday, September 1, 2025.
The magnitude 0.2 event occurred 2 km (1 miles) E (86 degrees) of Running Springs, CA.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 0.2 - local magnitude (Ml)
Time Monday, September 1, 2025 at 10:37:52 PM (PDT)
Tuesday, September 2, 2025 at 5:37:52 (UTC)
Distance from Running Springs, CA - 2 km (1 miles) E (86 degrees)
Lake Arrowhead, CA - 10 km (6 miles) ESE (115 degrees)
Highland, CA - 14 km (9 miles) NE (51 degrees)
Mentone, CA - 16 km (10 miles) NNE (16 degrees)
Big Bear Lake, CA - 17 km (10 miles) WSW (256 degrees)
Coordinates 34 deg. 12.5 min. N (34.209N), 117 deg. 5.2 min. W (117.086W)
Depth 5.19 km (3.20 miles)
Quality Good
Location Quality Parameters Nst=12, Nph=20, Dmin=3.9 km, Rmss=0.12 sec, Erho=0.38 km, Erzz=0.51 km, Gp=151 degrees
Event ID# ci41281152
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