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 4:55:03 AM (PDT) on Saturday, September 20, 2025.
The magnitude 0.5 event occurred 17 km (11 miles) ESE of Anza, CA.
The hypocentral depth is 14 km ( 9 miles).


Magnitude 0.5 - local magnitude (Ml)
Time Saturday, September 20, 2025 at 4:55:03 AM (PDT)
Saturday, September 20, 2025 at 11:55:03 (UTC)
Distance from Anza, CA - 17 km (11 miles) ESE (110 degrees)
La Quinta, CA - 25 km (16 miles) SW (225 degrees)
Warner Springs, CA - 27 km (17 miles) NNE (27 degrees)
Palm Desert, CA - 27 km (17 miles) SSW (206 degrees)
Rancho Mirage, CA - 28 km (17 miles) SSW (197 degrees)
Coordinates 33 deg. 30.2 min. N (33.503N), 116 deg. 30.1 min. W (116.501W)
Depth 13.99 km (8.70 miles)
Quality Excellent
Location Quality Parameters Nst=30, Nph=52, Dmin=9.4 km, Rmss=0.13 sec, Erho=0.18 km, Erzz=0.4 km, Gp=59 degrees
Event ID# ci40446826
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