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

A micro quarry occurred at 10:52:44 AM (PDT) on Friday, April 10, 2026.
The magnitude 1.3 event (a probable quarry explosion) occurred 45 km (28 miles) NE (53 degrees) of Holtville, CA.
The hypocentral depth is -0.20 km (-0.10 miles).


Magnitude 1.3 - local magnitude (Ml)
Time Friday, April 10, 2026 at 10:52:44 AM (PDT)
Friday, April 10, 2026 at 17:52:44 (UTC)
Distance from Holtville, CA - 45 km (28 miles) NE (53 degrees)
Los Algodones, B.C., MX - 47 km (29 miles) NNW (328 degrees)
Calipatria, CA - 49 km (30 miles) E (99 degrees)
Brawley, CA - 51 km (31 miles) E (80 degrees)
Yuma, AZ - 51 km (31 miles) NW (317 degrees)
Coordinates 33 deg. 3.4 min. N (33.057N), 114 deg. 59.8 min. W (114.997W)
Depth -0.20 km (-0.10 miles)
Quality Fair
Location Quality Parameters Nst=11, Nph=11, Dmin=9.5 km, Rmss=0.26 sec, Erho=0.73 km, Erzz=31.61 km, Gp=82 degrees
Event ID# ci41437640
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