Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE 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 earthquake occurred at 5:16:55 PM (PST) on Monday, December 1, 2025.
The magnitude 1.0 event occurred 7 km (4 miles) N (8 degrees) of Trabuco Canyon, CA.
The hypocentral depth is 7 km ( 4 miles).
| Magnitude | 1.0 - local magnitude (Ml) |
| Time | Monday, December 1, 2025 at 5:16:55 PM (PST) Tuesday, December 2, 2025 at 1:16:55 (UTC) |
| Distance from |
Trabuco Canyon, CA - 7 km (4 miles) N (8 degrees) Foothill Ranch, CA - 9 km (6 miles) ENE (62 degrees) Rancho Santa Margarita, CA - 10 km (6 miles) NNE (16 degrees) Coto De Caza, CA - 13 km (8 miles) N (5 degrees) Lake Forest, CA - 14 km (9 miles) NE (51 degrees) |
| Coordinates | 33 deg. 43.5 min. N (33.725N), 117 deg. 34.4 min. W (117.574W) |
| Depth | 7.16 km (4.40 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=25, Nph=38, Dmin=6.5 km, Rmss=0.18 sec, Erho=0.23 km, Erzz=0.49 km, Gp=118 degrees |
| Event ID# | ci41130655 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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