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

A micro quarry occurred at 11:38:06 AM (PDT) on Monday, March 9, 2026.
The magnitude 1.3 event (a probable quarry explosion) occurred 5 km (3 miles) SSE of Home Gardens, CA.
The hypocentral depth is -0.48 km (-0.30 miles).


Magnitude 1.3 - local magnitude (Ml)
Time Monday, March 9, 2026 at 11:38:06 AM (PDT)
Monday, March 9, 2026 at 18:38:06 (UTC)
Distance from Home Gardens, CA - 5 km (3 miles) SSE (148 degrees)
Corona, CA - 8 km (5 miles) ESE (116 degrees)
Norco, CA - 11 km (7 miles) SSE (153 degrees)
Woodcrest, CA - 13 km (8 miles) WSW (249 degrees)
Pedley, CA - 15 km (9 miles) S (186 degrees)
Coordinates 33 deg. 50.4 min. N (33.840N), 117 deg. 29.5 min. W (117.492W)
Depth -0.48 km (-0.30 miles)
Quality Good
Location Quality Parameters Nst=60, Nph=60, Dmin=5.0 km, Rmss=0.24 sec, Erho=0.27 km, Erzz=31.61 km, Gp=33 degrees
Event ID# ci41200871
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