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 event has been reviewed by a seismologist.

A micro earthquake occurred at 3:10:46 AM (PDT) on Saturday, May 2, 2026.
The magnitude 2.6 event occurred 5 km (3 miles) SE of Ontario, CA.
The hypocentral depth is 4 km ( 3 miles).


Magnitude 2.6 - local magnitude (Ml)
Time Saturday, May 2, 2026 at 3:10:46 AM (PDT)
Saturday, May 2, 2026 at 10:10:46 (UTC)
Distance from Ontario, CA - 5 km (3 miles) SE (137 degrees)
Mira Loma, CA - 8 km (5 miles) WNW (295 degrees)
Chino, CA - 9 km (5 miles) E (83 degrees)
Upland, CA - 10 km (6 miles) SSE (149 degrees)
Glen Avon, CA - 10 km (6 miles) W (277 degrees)
Coordinates 34 deg. 1.4 min. N (34.023N), 117 deg. 35.6 min. W (117.594W)
Depth 4.43 km (2.80 miles)
Quality Good
Location Quality Parameters Nst=44, Nph=56, Dmin=2.9 km, Rmss=0.35 sec, Erho=0.74 km, Erzz=1.316 km, Gp=23 degrees
Event ID# ci41239439
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