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 3:17:55 AM (PDT) on Wednesday, August 20, 2025.
The magnitude 0.5 event occurred 7 km (4 miles) NNW of Aguanga, CA.
The hypocentral depth is 11 km ( 7 miles).


Magnitude 0.5 - local magnitude (Ml)
Time Wednesday, August 20, 2025 at 3:17:55 AM (PDT)
Wednesday, August 20, 2025 at 10:17:55 (UTC)
Distance from Aguanga, CA - 7 km (4 miles) NNW (330 degrees)
Palomar Observatory, CA - 16 km (10 miles) NNW (347 degrees)
Pala, CA - 22 km (14 miles) NE (48 degrees)
Anza, CA - 22 km (14 miles) WSW (253 degrees)
Temecula, CA - 23 km (14 miles) E (89 degrees)
Coordinates 33 deg. 29.7 min. N (33.496N), 116 deg. 54.1 min. W (116.902W)
Depth 11.42 km (7.10 miles)
Quality Excellent
Location Quality Parameters Nst=23, Nph=43, Dmin=1.8 km, Rmss=0.13 sec, Erho=0.19 km, Erzz=0.44 km, Gp=54 degrees
Event ID# ci40403730
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