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 2:30:43 AM (PDT) on Sunday, September 21, 2025.
The magnitude 1.2 event occurred 3 km (2 miles) SE of Warner Springs, CA.
The hypocentral depth is 17 km (10 miles).


Magnitude 1.2 - local magnitude (Ml)
Time Sunday, September 21, 2025 at 2:30:43 AM (PDT)
Sunday, September 21, 2025 at 9:30:43 (UTC)
Distance from Warner Springs, CA - 3 km (2 miles) SE (129 degrees)
Lake Henshaw, CA - 14 km (9 miles) E (79 degrees)
Julian, CA - 21 km (13 miles) N (358 degrees)
Borrego Springs, CA - 22 km (14 miles) W (273 degrees)
Palomar Observatory, CA - 26 km (16 miles) ESE (113 degrees)
Coordinates 33 deg. 16.0 min. N (33.267N), 116 deg. 36.7 min. W (116.611W)
Depth 16.72 km (10.40 miles)
Quality Good
Location Quality Parameters Nst=70, Nph=129, Dmin=8.2 km, Rmss=0.2 sec, Erho=0.15 km, Erzz=0.41 km, Gp=20 degrees
Event ID# ci40447474
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