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 11:21:11 PM (PDT) on Sunday, August 17, 2025.
The magnitude 1.2 event occurred 5 km (3 miles) N of Moreno Valley, CA.
The hypocentral depth is 14 km ( 8 miles).


Magnitude 1.2 - local magnitude (Ml)
Time Sunday, August 17, 2025 at 11:21:11 PM (PDT)
Monday, August 18, 2025 at 6:21:11 (UTC)
Distance from Moreno Valley, CA - 5 km (3 miles) N (358 degrees)
March Air Reserve Base, CA - 9 km (6 miles) NNE (19 degrees)
Loma Linda, CA - 9 km (6 miles) SSE (162 degrees)
Grand Terrace, CA - 11 km (7 miles) SE (133 degrees)
Redlands, CA - 11 km (7 miles) SSW (205 degrees)
Coordinates 33 deg. 58.2 min. N (33.969N), 117 deg. 13.8 min. W (117.230W)
Depth 13.55 km (8.40 miles)
Quality Good
Location Quality Parameters Nst=73, Nph=126, Dmin=5.8 km, Rmss=0.17 sec, Erho=0.13 km, Erzz=0.28 km, Gp=54 degrees
Event ID# ci40401642
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