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 #6: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 9:43:29 AM (PDT) on Monday, August 11, 2025.
The magnitude 1.4 event occurred 7 km (4 miles) SW of Castaic, CA.
The hypocentral depth is 9 km ( 6 miles).
| Magnitude | 1.4 - local magnitude (Ml) |
| Time | Monday, August 11, 2025 at 9:43:29 AM (PDT) Monday, August 11, 2025 at 16:43:29 (UTC) |
| Distance from |
Castaic, CA - 7 km (4 miles) SW (227 degrees) Valencia, CA - 10 km (6 miles) W (266 degrees) Piru, CA - 12 km (7 miles) ENE (71 degrees) Santa Clarita, CA - 16 km (10 miles) WNW (283 degrees) Simi Valley, CA - 21 km (13 miles) NNE (17 degrees) |
| Coordinates | 34 deg. 26.9 min. N (34.449N), 118 deg. 40.5 min. W (118.675W) |
| Depth | 9.12 km (5.70 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=27, Nph=40, Dmin=3.0 km, Rmss=0.2 sec, Erho=0.32 km, Erzz=0.54 km, Gp=50 degrees |
| Event ID# | ci41258528 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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