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

A micro earthquake occurred at 1:11:49 AM (PST) on Monday, December 15, 2025.
The magnitude 1.2 event occurred 16 km (10 miles) NW of Morongo Valley, CA.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 1.2 - local magnitude (Ml)
Time Monday, December 15, 2025 at 1:11:49 AM (PST)
Monday, December 15, 2025 at 9:11:49 (UTC)
Distance from Morongo Valley, CA - 16 km (10 miles) NW (311 degrees)
Big Bear City, CA - 18 km (11 miles) SE (137 degrees)
Big Bear Lake, CA - 21 km (13 miles) ESE (122 degrees)
Cabazon, CA - 26 km (16 miles) NNE (15 degrees)
Yucca Valley, CA - 26 km (16 miles) W (277 degrees)
Coordinates 34 deg. 8.6 min. N (34.143N), 116 deg. 42.8 min. W (116.713W)
Depth 5.43 km (3.40 miles)
Quality Fair
Location Quality Parameters Nst=57, Nph=94, Dmin=21.2 km, Rmss=0.15 sec, Erho=0.13 km, Erzz=0.85 km, Gp=47 degrees
Event ID# ci41352072
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