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 #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro quarry occurred at 1:23:22 PM (PDT) on Tuesday, July 21, 2026.
The magnitude 1.4 event (a probable quarry explosion) occurred 9 km (6 miles) NNW of Rosamond, CA.
The hypocentral depth is -1 km (-0.50 miles).
| Magnitude | 1.4 - local magnitude (Ml) |
| Time | Tuesday, July 21, 2026 at 1:23:22 PM (PDT) Tuesday, July 21, 2026 at 20:23:22 (UTC) |
| Distance from |
Rosamond, CA - 9 km (6 miles) NNW (330 degrees) Mojave, CA - 14 km (9 miles) SSW (195 degrees) Edwards Air Force Base, CA - 26 km (16 miles) W (277 degrees) Lancaster, CA - 28 km (17 miles) N (349 degrees) California City, CA - 30 km (18 miles) SW (224 degrees) |
| Coordinates | 34 deg. 56.0 min. N (34.933N), 118 deg. 12.8 min. W (118.213W) |
| Depth | -0.86 km (-0.50 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=17, Nph=18, Dmin=6.2 km, Rmss=0.2 sec, Erho=0.48 km, Erzz=31.61 km, Gp=114 degrees |
| Event ID# | ci40658986 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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