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 #3: 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 2:34:35 AM (PST) on Friday, December 12, 2025.
The magnitude 1.2 event occurred 4 km (3 miles) SSW of South Pasadena, CA.
The hypocentral depth is 11 km ( 6 miles).


Magnitude 1.2 - local magnitude (Ml)
Time Friday, December 12, 2025 at 2:34:35 AM (PST)
Friday, December 12, 2025 at 10:34:35 (UTC)
Distance from South Pasadena, CA - 4 km (3 miles) SSW (211 degrees)
Alhambra, CA - 4 km (3 miles) WSW (254 degrees)
Highland Park, CA - 5 km (3 miles) SSE (150 degrees)
Monterey Park, CA - 5 km (3 miles) WNW (297 degrees)
East Los Angeles, CA - 6 km (4 miles) N (356 degrees)
Coordinates 34 deg. 5.1 min. N (34.084N), 118 deg. 10.4 min. W (118.173W)
Depth 10.51 km (6.50 miles)
Quality Good
Location Quality Parameters Nst=46, Nph=78, Dmin=4.2 km, Rmss=0.19 sec, Erho=0.2 km, Erzz=0.38 km, Gp=34 degrees
Event ID# ci41350264
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