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 #6: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro quarry occurred at 1:12:08 PM (PDT) on Wednesday, July 29, 2026.
The magnitude 1.2 event (a probable quarry explosion) occurred 10 km (6 miles) ESE of Coto De Caza, CA.
The hypocentral depth is -1 km (-0.30 miles).
| Magnitude | 1.2 - local magnitude (Ml) |
| Time | Wednesday, July 29, 2026 at 1:12:08 PM (PDT) Wednesday, July 29, 2026 at 20:12:08 (UTC) |
| Distance from |
Coto De Caza, CA - 10 km (6 miles) ESE (116 degrees) Ladera Ranch, CA - 13 km (8 miles) E (93 degrees) Rancho Santa Margarita, CA - 13 km (8 miles) SE (129 degrees) Trabuco Canyon, CA - 14 km (9 miles) SE (141 degrees) Lakeland Village, CA - 16 km (10 miles) WSW (239 degrees) |
| Coordinates | 33 deg. 33.9 min. N (33.565N), 117 deg. 29.5 min. W (117.492W) |
| Depth | -0.53 km (-0.30 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=31, Nph=31, Dmin=6.1 km, Rmss=0.18 sec, Erho=0.33 km, Erzz=31.61 km, Gp=110 degrees |
| Event ID# | ci40663306 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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