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 6:03:02 PM (PDT) on Thursday, October 9, 2025.
The magnitude 0.9 event occurred 12 km (8 miles) SSE of Anza, CA.
The hypocentral depth is 11 km ( 7 miles).


Magnitude 0.9 - local magnitude (Ml)
Time Thursday, October 9, 2025 at 6:03:02 PM (PDT)
Friday, October 10, 2025 at 1:03:02 (UTC)
Distance from Anza, CA - 12 km (8 miles) SSE (161 degrees)
Warner Springs, CA - 19 km (12 miles) N (1 degrees)
Aguanga, CA - 22 km (13 miles) E (87 degrees)
Palomar Observatory, CA - 24 km (15 miles) ENE (64 degrees)
Lake Henshaw, CA - 26 km (16 miles) NNE (28 degrees)
Coordinates 33 deg. 27.1 min. N (33.452N), 116 deg. 37.9 min. W (116.632W)
Depth 10.67 km (6.60 miles)
Quality Good
Location Quality Parameters Nst=44, Nph=75, Dmin=1.4 km, Rmss=0.17 sec, Erho=0.15 km, Erzz=0.3 km, Gp=39 degrees
Event ID# ci41105991
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