Recent Earthquakes in California and Nevada


== PRELIMINARY EVENT 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 quarry occurred at 12:01:11 PM (PDT) on Wednesday, April 22, 2026.
The magnitude 0.9 event (a probable quarry explosion) occurred 1 km (1 miles) SE of Home Gardens, CA.
The hypocentral depth is -1 km (-0.30 miles).


Magnitude 0.9 - local magnitude (Ml)
Time Wednesday, April 22, 2026 at 12:01:11 PM (PDT)
Wednesday, April 22, 2026 at 19:01:11 (UTC)
Distance from Home Gardens, CA - 1 km (1 miles) SE (124 degrees)
Corona, CA - 5 km (3 miles) E (88 degrees)
Norco, CA - 8 km (5 miles) SSE (151 degrees)
Pedley, CA - 12 km (7 miles) SSW (195 degrees)
Mira Loma, CA - 13 km (8 miles) S (177 degrees)
Coordinates 33 deg. 52.3 min. N (33.871N), 117 deg. 30.5 min. W (117.509W)
Depth -0.53 km (-0.30 miles)
Quality Fair
Location Quality Parameters Nst=28, Nph=28, Dmin=8.4 km, Rmss=0.21 sec, Erho=0.43 km, Erzz=31.61 km, Gp=58 degrees
Event ID# ci41446816
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