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 3:28:51 PM (PDT) on Wednesday, July 29, 2026.
The magnitude 1.4 event (a probable quarry explosion) occurred 11 km (7 miles) ENE (57 degrees) of Adelanto, CA.
The hypocentral depth is -1 km (-0.50 miles).
| Magnitude | 1.4 - local magnitude (Ml) |
| Time | Wednesday, July 29, 2026 at 3:28:51 PM (PDT) Wednesday, July 29, 2026 at 22:28:51 (UTC) |
| Distance from |
Adelanto, CA - 11 km (7 miles) ENE (57 degrees) Victorville, CA - 11 km (7 miles) N (353 degrees) Mountain View Acres, CA - 16 km (10 miles) NNE (14 degrees) Apple Valley, CA - 19 km (12 miles) NW (325 degrees) Hesperia, CA - 24 km (15 miles) N (359 degrees) |
| Coordinates | 34 deg. 38.3 min. N (34.639N), 117 deg. 18.3 min. W (117.305W) |
| Depth | -0.81 km (-0.50 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=29, Nph=29, Dmin=9.0 km, Rmss=0.14 sec, Erho=0.27 km, Erzz=31.61 km, Gp=43 degrees |
| Event ID# | ci40663394 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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