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 11:08:38 AM (PDT) on Tuesday, March 10, 2026.
The magnitude 1.5 event (a probable quarry explosion) occurred 45 km (28 miles) NE (52 degrees) of Holtville, CA.
The hypocentral depth is -0.20 km (-0.10 miles).


Magnitude 1.5 - local magnitude (Ml)
Time Tuesday, March 10, 2026 at 11:08:38 AM (PDT)
Tuesday, March 10, 2026 at 18:08:38 (UTC)
Distance from Holtville, CA - 45 km (28 miles) NE (52 degrees)
Los Algodones, B.C., MX - 47 km (29 miles) NNW (328 degrees)
Calipatria, CA - 48 km (30 miles) E (99 degrees)
Brawley, CA - 50 km (31 miles) E (80 degrees)
Yuma, AZ - 51 km (32 miles) NW (316 degrees)
Coordinates 33 deg. 3.5 min. N (33.059N), 115 deg. 0.2 min. W (115.003W)
Depth -0.20 km (-0.10 miles)
Quality Fair
Location Quality Parameters Nst=14, Nph=14, Dmin=9.9 km, Rmss=0.28 sec, Erho=0.66 km, Erzz=31.61 km, Gp=82 degrees
Event ID# ci41201647
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