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

A micro earthquake occurred at 2:37:43 AM (PDT) on Wednesday, October 22, 2025.
The magnitude 0.5 event occurred 4 km (3 miles) ESE of Palomar Observatory, CA.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 0.5 - local magnitude (Ml)
Time Wednesday, October 22, 2025 at 2:37:43 AM (PDT)
Wednesday, October 22, 2025 at 9:37:43 (UTC)
Distance from Palomar Observatory, CA - 4 km (3 miles) ESE (106 degrees)
Aguanga, CA - 12 km (7 miles) SSE (159 degrees)
Lake Henshaw, CA - 13 km (8 miles) NNW (335 degrees)
Warner Springs, CA - 19 km (12 miles) WNW (292 degrees)
Pala, CA - 24 km (15 miles) E (95 degrees)
Coordinates 33 deg. 20.7 min. N (33.345N), 116 deg. 49.2 min. W (116.820W)
Depth 5.18 km (3.20 miles)
Quality Good
Location Quality Parameters Nst=34, Nph=61, Dmin=4.1 km, Rmss=0.19 sec, Erho=0.19 km, Erzz=0.55 km, Gp=37 degrees
Event ID# ci41112615
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