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 3:15:45 AM (PDT) on Wednesday, August 20, 2025.
The magnitude 0.9 event occurred 14 km (9 miles) SE of Anza, CA.
The hypocentral depth is 7 km ( 4 miles).


Magnitude 0.9 - local magnitude (Ml)
Time Wednesday, August 20, 2025 at 3:15:45 AM (PDT)
Wednesday, August 20, 2025 at 10:15:45 (UTC)
Distance from Anza, CA - 14 km (9 miles) SE (128 degrees)
Warner Springs, CA - 23 km (14 miles) NNE (19 degrees)
Aguanga, CA - 29 km (18 miles) E (83 degrees)
Borrego Springs, CA - 29 km (18 miles) NW (326 degrees)
La Quinta, CA - 31 km (19 miles) SW (227 degrees)
Coordinates 33 deg. 28.5 min. N (33.475N), 116 deg. 33.1 min. W (116.552W)
Depth 7.27 km (4.50 miles)
Quality Good
Location Quality Parameters Nst=50, Nph=86, Dmin=5.1 km, Rmss=0.19 sec, Erho=0.17 km, Erzz=0.52 km, Gp=26 degrees
Event ID# ci40403722
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