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 #5: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro quarry occurred at 4:49:36 PM (PDT) on Monday, August 10, 2026.
The magnitude 1.3 event (a probable quarry explosion) occurred 45 km (28 miles) NE (54 degrees) of Holtville, CA.
The hypocentral depth is -0.20 km (-0.10 miles).
| Magnitude | 1.3 - local magnitude (Ml) |
| Time | Monday, August 10, 2026 at 4:49:36 PM (PDT) Monday, August 10, 2026 at 23:49:36 (UTC) |
| Distance from |
Holtville, CA - 45 km (28 miles) NE (54 degrees) Los Algodones, B.C., MX - 45 km (28 miles) NNW (329 degrees) Yuma, AZ - 49 km (31 miles) NW (317 degrees) Calipatria, CA - 50 km (31 miles) E (100 degrees) Brawley, CA - 51 km (32 miles) E (81 degrees) |
| Coordinates | 33 deg. 3.0 min. N (33.049N), 114 deg. 59.1 min. W (114.986W) |
| Depth | -0.20 km (-0.10 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=15, Nph=15, Dmin=8.6 km, Rmss=0.24 sec, Erho=0.65 km, Erzz=31.61 km, Gp=80 degrees |
| Event ID# | ci40670186 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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