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 3:40:25 PM (PDT) on Monday, September 1, 2025.
The magnitude 0.8 event occurred 15 km (9 miles) S of Anza, CA.
The hypocentral depth is 4 km ( 3 miles).


Magnitude 0.8 - local magnitude (Ml)
Time Monday, September 1, 2025 at 3:40:25 PM (PDT)
Monday, September 1, 2025 at 22:40:25 (UTC)
Distance from Anza, CA - 15 km (9 miles) S (176 degrees)
Warner Springs, CA - 16 km (10 miles) N (350 degrees)
Aguanga, CA - 19 km (12 miles) E (97 degrees)
Palomar Observatory, CA - 20 km (13 miles) ENE (69 degrees)
Lake Henshaw, CA - 22 km (14 miles) NNE (25 degrees)
Coordinates 33 deg. 25.3 min. N (33.422N), 116 deg. 39.7 min. W (116.662W)
Depth 4.33 km (2.70 miles)
Quality Good
Location Quality Parameters Nst=45, Nph=73, Dmin=9.8 km, Rmss=0.19 sec, Erho=0.15 km, Erzz=0.44 km, Gp=34 degrees
Event ID# ci41281056
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