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 0:12:47 AM (PDT) on Wednesday, August 20, 2025.
The magnitude 0.9 event occurred 3 km (2 miles) E (80 degrees) of Moreno Valley, CA.
The hypocentral depth is 13 km ( 8 miles).


Magnitude 0.9 - local magnitude (Ml)
Time Wednesday, August 20, 2025 at 0:12:47 AM (PDT)
Wednesday, August 20, 2025 at 7:12:47 (UTC)
Distance from Moreno Valley, CA - 3 km (2 miles) E (80 degrees)
March Air Reserve Base, CA - 7 km (5 miles) NE (55 degrees)
Mead Valley, CA - 14 km (9 miles) NE (40 degrees)
Redlands, CA - 14 km (9 miles) S (185 degrees)
Loma Linda, CA - 14 km (9 miles) SSE (156 degrees)
Coordinates 33 deg. 55.8 min. N (33.931N), 117 deg. 11.8 min. W (117.197W)
Depth 13.40 km (8.30 miles)
Quality Good
Location Quality Parameters Nst=51, Nph=83, Dmin=2.9 km, Rmss=0.17 sec, Erho=0.16 km, Erzz=0.41 km, Gp=54 degrees
Event ID# ci40403626
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