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 8:05:58 AM (PDT) on Sunday, August 31, 2025.
The magnitude 0.5 event occurred 11 km (7 miles) ESE of Moreno Valley, CA.
The hypocentral depth is 11 km ( 7 miles).


Magnitude 0.5 - local magnitude (Ml)
Time Sunday, August 31, 2025 at 8:05:58 AM (PDT)
Sunday, August 31, 2025 at 15:05:58 (UTC)
Distance from Moreno Valley, CA - 11 km (7 miles) ESE (108 degrees)
Nuevo, CA - 11 km (7 miles) NNE (17 degrees)
Calimesa, CA - 12 km (7 miles) SSW (208 degrees)
Beaumont, CA - 13 km (8 miles) WSW (253 degrees)
March Air Reserve Base, CA - 14 km (9 miles) E (89 degrees)
Coordinates 33 deg. 53.7 min. N (33.894N), 117 deg. 6.8 min. W (117.113W)
Depth 11.39 km (7.10 miles)
Quality Good
Location Quality Parameters Nst=16, Nph=25, Dmin=8.1 km, Rmss=0.21 sec, Erho=0.39 km, Erzz=0.95 km, Gp=79 degrees
Event ID# ci41280080
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