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 5:02:22 PM (PDT) on Friday, September 19, 2025.
The magnitude 0.9 event occurred 8 km (5 miles) N of Big Bear City, CA.
The hypocentral depth is 2 km ( 2 miles).


Magnitude 0.9 - local magnitude (Ml)
Time Friday, September 19, 2025 at 5:02:22 PM (PDT)
Saturday, September 20, 2025 at 0:02:22 (UTC)
Distance from Big Bear City, CA - 8 km (5 miles) N (357 degrees)
Big Bear Lake, CA - 11 km (7 miles) NNE (30 degrees)
Lucerne Valley, CA - 17 km (10 miles) SE (139 degrees)
Running Springs, CA - 28 km (17 miles) ENE (60 degrees)
Lake Arrowhead, CA - 33 km (20 miles) ENE (73 degrees)
Coordinates 34 deg. 19.9 min. N (34.332N), 116 deg. 51.0 min. W (116.849W)
Depth 2.36 km (1.50 miles)
Quality Good
Location Quality Parameters Nst=32, Nph=51, Dmin=2.7 km, Rmss=0.17 sec, Erho=0.18 km, Erzz=0.26 km, Gp=51 degrees
Event ID# ci40446506
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