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 2:32:03 PM (PDT) on Monday, October 20, 2025.
The magnitude 0.9 event occurred 4 km (3 miles) N (5 degrees) of Lake Henshaw, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 0.9 - local magnitude (Ml)
Time Monday, October 20, 2025 at 2:32:03 PM (PDT)
Monday, October 20, 2025 at 21:32:03 (UTC)
Distance from Lake Henshaw, CA - 4 km (3 miles) N (5 degrees)
Warner Springs, CA - 12 km (7 miles) W (268 degrees)
Palomar Observatory, CA - 13 km (8 miles) SE (131 degrees)
Aguanga, CA - 21 km (13 miles) SSE (152 degrees)
Valley Center, CA - 26 km (16 miles) ENE (75 degrees)
Coordinates 33 deg. 16.7 min. N (33.279N), 116 deg. 45.6 min. W (116.759W)
Depth 5.78 km (3.60 miles)
Quality Good
Location Quality Parameters Nst=45, Nph=76, Dmin=4.7 km, Rmss=0.18 sec, Erho=0.16 km, Erzz=0.48 km, Gp=27 degrees
Event ID# ci41111895
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