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 #3: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.

A micro earthquake occurred at 11:56:47 PM (PST) on Saturday, November 22, 2025.
The magnitude 0.8 event occurred 6 km (4 miles) NE (38 degrees) of Fontana, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 0.8 - local magnitude (Ml)
Time Saturday, November 22, 2025 at 11:56:47 PM (PST)
Sunday, November 23, 2025 at 7:56:47 (UTC)
Distance from Fontana, CA - 6 km (4 miles) NE (38 degrees)
Rialto, CA - 6 km (4 miles) NW (314 degrees)
Muscoy, CA - 7 km (4 miles) W (259 degrees)
Bloomington, CA - 8 km (5 miles) NNW (348 degrees)
Devore, CA - 9 km (6 miles) S (188 degrees)
Coordinates 34 deg. 8.6 min. N (34.143N), 117 deg. 24.9 min. W (117.415W)
Depth 6.50 km (4.00 miles)
Quality Good
Location Quality Parameters Nst=54, Nph=90, Dmin=8.3 km, Rmss=0.19 sec, Erho=0.18 km, Erzz=0.46 km, Gp=42 degrees
Event ID# ci41125799
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