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

A micro earthquake occurred at 1:14:37 AM (PDT) on Sunday, August 31, 2025.
The magnitude 0.4 event occurred 8 km (5 miles) NE (48 degrees) of Aguanga, CA.
The hypocentral depth is 7 km ( 4 miles).


Magnitude 0.4 - local magnitude (Ml)
Time Sunday, August 31, 2025 at 1:14:37 AM (PDT)
Sunday, August 31, 2025 at 8:14:37 (UTC)
Distance from Aguanga, CA - 8 km (5 miles) NE (48 degrees)
Anza, CA - 14 km (9 miles) WSW (239 degrees)
Palomar Observatory, CA - 16 km (10 miles) NNE (21 degrees)
Lake Henshaw, CA - 28 km (17 miles) N (353 degrees)
Warner Springs, CA - 28 km (17 miles) NW (326 degrees)
Coordinates 33 deg. 29.4 min. N (33.490N), 116 deg. 48.1 min. W (116.802W)
Depth 6.66 km (4.10 miles)
Quality Excellent
Location Quality Parameters Nst=32, Nph=57, Dmin=1.6 km, Rmss=0.14 sec, Erho=0.15 km, Erzz=0.33 km, Gp=35 degrees
Event ID# ci41279904
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