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 7:49:55 AM (PDT) on Thursday, July 23, 2026.
The magnitude 1.3 event occurred 2 km (1 miles) NW of Fontana, CA.
The hypocentral depth is 7 km ( 4 miles).


Magnitude 1.3 - local magnitude (Ml)
Time Thursday, July 23, 2026 at 7:49:55 AM (PDT)
Thursday, July 23, 2026 at 14:49:55 (UTC)
Distance from Fontana, CA - 2 km (1 miles) NW (320 degrees)
Bloomington, CA - 9 km (5 miles) NW (304 degrees)
Rancho Cucamonga, CA - 10 km (6 miles) E (96 degrees)
Rialto, CA - 10 km (6 miles) W (275 degrees)
Glen Avon, CA - 11 km (7 miles) N (5 degrees)
Coordinates 34 deg. 6.8 min. N (34.114N), 117 deg. 28.5 min. W (117.474W)
Depth 6.94 km (4.30 miles)
Quality Good
Location Quality Parameters Nst=48, Nph=78, Dmin=3.6 km, Rmss=0.19 sec, Erho=0.21 km, Erzz=0.35 km, Gp=43 degrees
Event ID# ci40660138
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