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 11:46:28 PM (PDT) on Sunday, August 17, 2025.
The magnitude 0.3 event occurred 4 km (3 miles) WSW of Anza, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 0.3 - local magnitude (Ml)
Time Sunday, August 17, 2025 at 11:46:28 PM (PDT)
Monday, August 18, 2025 at 6:46:28 (UTC)
Distance from Anza, CA - 4 km (3 miles) WSW (247 degrees)
Aguanga, CA - 18 km (11 miles) NE (52 degrees)
Idyllwild, CA - 22 km (14 miles) S (179 degrees)
Palomar Observatory, CA - 25 km (15 miles) NE (34 degrees)
Valle Vista, CA - 28 km (18 miles) SE (144 degrees)
Coordinates 33 deg. 32.4 min. N (33.540N), 116 deg. 42.9 min. W (116.715W)
Depth 5.96 km (3.70 miles)
Quality Excellent
Location Quality Parameters Nst=18, Nph=32, Dmin=3.5 km, Rmss=0.1 sec, Erho=0.18 km, Erzz=0.37 km, Gp=44 degrees
Event ID# ci40401658
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