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 is a computer-generated message. This event has not yet been reviewed by a seismologist.
A micro earthquake occurred at 3:17:25 AM (PDT) on Saturday, October 4, 2025.
The magnitude 0.8 event occurred 5 km (3 miles) E of Lake Arrowhead, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 0.8 - local magnitude (Ml) |
| Time | Saturday, October 4, 2025 at 3:17:25 AM (PDT) Saturday, October 4, 2025 at 10:17:25 (UTC) |
| Distance from |
Lake Arrowhead, CA - 5 km (3 miles) E (101 degrees) Running Springs, CA - 5 km (3 miles) NW (323 degrees) Crestline, CA - 14 km (8 miles) E (91 degrees) Highland, CA - 14 km (9 miles) NNE (27 degrees) Mentone, CA - 19 km (12 miles) N (359 degrees) |
| Coordinates | 34 deg. 14.4 min. N (34.240N), 117 deg. 8.3 min. W (117.139W) |
| Depth | 5.40 km (3.40 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=46, Nph=82, Dmin=5.0 km, Rmss=0.15 sec, Erho=0.16 km, Erzz=0.34 km, Gp=59 degrees |
| Event ID# | ci41102423 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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