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 10:46:53 AM (PDT) on Wednesday, April 1, 2026.
The magnitude 1.4 event (a probable quarry explosion) occurred 44 km (28 miles) NE (54 degrees) of Holtville, CA.
The hypocentral depth is -0.23 km (-0.10 miles).


Magnitude 1.4 - local magnitude (Ml)
Time Wednesday, April 1, 2026 at 10:46:53 AM (PDT)
Wednesday, April 1, 2026 at 17:46:53 (UTC)
Distance from Holtville, CA - 44 km (28 miles) NE (54 degrees)
Los Algodones, B.C., MX - 45 km (28 miles) NNW (328 degrees)
Calipatria, CA - 49 km (31 miles) E (100 degrees)
Brawley, CA - 50 km (31 miles) E (81 degrees)
Yuma, AZ - 50 km (31 miles) NW (316 degrees)
Coordinates 33 deg. 2.7 min. N (33.045N), 114 deg. 59.7 min. W (114.996W)
Depth -0.23 km (-0.10 miles)
Quality Fair
Location Quality Parameters Nst=13, Nph=13, Dmin=8.2 km, Rmss=0.2 sec, Erho=0.49 km, Erzz=31.61 km, Gp=58 degrees
Event ID# ci41430392
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