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 8:32:31 PM (PDT) on Tuesday, October 7, 2025.
The magnitude 0.5 event occurred 6 km (4 miles) WSW of Anza, CA.
The hypocentral depth is 4 km ( 2 miles).


Magnitude 0.5 - local magnitude (Ml)
Time Tuesday, October 7, 2025 at 8:32:31 PM (PDT)
Wednesday, October 8, 2025 at 3:32:31 (UTC)
Distance from Anza, CA - 6 km (4 miles) WSW (246 degrees)
Aguanga, CA - 16 km (10 miles) NE (51 degrees)
Idyllwild, CA - 23 km (14 miles) S (183 degrees)
Palomar Observatory, CA - 23 km (15 miles) NNE (32 degrees)
Valle Vista, CA - 28 km (18 miles) SSE (148 degrees)
Coordinates 33 deg. 32.0 min. N (33.534N), 116 deg. 43.8 min. W (116.730W)
Depth 3.78 km (2.30 miles)
Quality Good
Location Quality Parameters Nst=36, Nph=61, Dmin=3.6 km, Rmss=0.17 sec, Erho=0.16 km, Erzz=0.36 km, Gp=34 degrees
Event ID# ci41104983
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