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

A micro quarry occurred at 2:59:20 PM (PST) on Thursday, November 6, 2025.
The magnitude 1.5 event (a probable quarry explosion) occurred 7 km (4 miles) SSE of Home Gardens, CA.
The hypocentral depth is -0.50 km (-0.30 miles).


Magnitude 1.5 - local magnitude (Ml)
Time Thursday, November 6, 2025 at 2:59:20 PM (PST)
Thursday, November 6, 2025 at 22:59:20 (UTC)
Distance from Home Gardens, CA - 7 km (4 miles) SSE (148 degrees)
Corona, CA - 9 km (6 miles) ESE (122 degrees)
Norco, CA - 13 km (8 miles) SSE (152 degrees)
Woodcrest, CA - 13 km (8 miles) WSW (241 degrees)
Riverside, CA - 16 km (10 miles) SSW (210 degrees)
Coordinates 33 deg. 49.5 min. N (33.825N), 117 deg. 28.9 min. W (117.481W)
Depth -0.50 km (-0.30 miles)
Quality Good
Location Quality Parameters Nst=41, Nph=58, Dmin=3.5 km, Rmss=0.27 sec, Erho=0.31 km, Erzz=31.61 km, Gp=49 degrees
Event ID# ci40482034
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