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 2:43:19 AM (PDT) on Wednesday, August 19, 2026.
The magnitude 0.5 event occurred 7 km (5 miles) N (0 degrees) of Fontana, CA.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 0.5 - local magnitude (Ml)
Time Wednesday, August 19, 2026 at 2:43:19 AM (PDT)
Wednesday, August 19, 2026 at 9:43:19 (UTC)
Distance from Fontana, CA - 7 km (5 miles) N (0 degrees)
Devore, CA - 8 km (5 miles) SW (219 degrees)
Rialto, CA - 10 km (6 miles) NW (309 degrees)
Lytle Creek, CA - 11 km (7 miles) SSE (160 degrees)
Muscoy, CA - 11 km (7 miles) W (277 degrees)
Coordinates 34 deg. 9.9 min. N (34.165N), 117 deg. 27.5 min. W (117.458W)
Depth 4.78 km (3.00 miles)
Quality Good
Location Quality Parameters Nst=25, Nph=42, Dmin=4.2 km, Rmss=0.15 sec, Erho=0.23 km, Erzz=0.32 km, Gp=78 degrees
Event ID# ci41530016
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