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 #4: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 2:46:34 AM (PDT) on Saturday, May 30, 2026.
The magnitude 0.7 event occurred 9 km (5 miles) N (0 degrees) of Rancho Cucamonga, CA.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 0.7 - local magnitude (Ml)
Time Saturday, May 30, 2026 at 2:46:34 AM (PDT)
Saturday, May 30, 2026 at 9:46:34 (UTC)
Distance from Rancho Cucamonga, CA - 9 km (5 miles) N (0 degrees)
Lytle Creek, CA - 10 km (6 miles) SW (228 degrees)
Upland, CA - 13 km (8 miles) NNE (29 degrees)
Fontana, CA - 16 km (10 miles) NW (316 degrees)
Devore, CA - 17 km (10 miles) W (262 degrees)
Coordinates 34 deg. 12.0 min. N (34.200N), 117 deg. 34.8 min. W (117.579W)
Depth 4.65 km (2.90 miles)
Quality Good
Location Quality Parameters Nst=34, Nph=61, Dmin=7.4 km, Rmss=0.18 sec, Erho=0.2 km, Erzz=0.36 km, Gp=60 degrees
Event ID# ci41476968
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