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 0:32:17 AM (PDT) on Sunday, August 17, 2025.
The magnitude 1.9 event occurred 6 km (4 miles) WSW of Anza, CA.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 1.9 - local magnitude (Ml)
Time Sunday, August 17, 2025 at 0:32:17 AM (PDT)
Sunday, August 17, 2025 at 7:32:17 (UTC)
Distance from Anza, CA - 6 km (4 miles) WSW (237 degrees)
Aguanga, CA - 15 km (10 miles) NE (54 degrees)
Palomar Observatory, CA - 22 km (14 miles) NNE (33 degrees)
Idyllwild, CA - 24 km (15 miles) S (182 degrees)
Warner Springs, CA - 28 km (18 miles) NNW (342 degrees)
Coordinates 33 deg. 31.5 min. N (33.525N), 116 deg. 43.8 min. W (116.730W)
Depth 5.20 km (3.20 miles)
Quality Good
Location Quality Parameters Nst=93, Nph=174, Dmin=4.6 km, Rmss=0.21 sec, Erho=0.12 km, Erzz=0.41 km, Gp=13 degrees
Event ID# ci40401034
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