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 3:11:17 AM (PDT) on Thursday, August 21, 2025.
The magnitude 0.1 event occurred 4 km (2 miles) E (99 degrees) of Running Springs, CA.
The hypocentral depth is 7 km ( 4 miles).
| Magnitude | 0.1 - local magnitude (Ml) |
| Time | Thursday, August 21, 2025 at 3:11:17 AM (PDT) Thursday, August 21, 2025 at 10:11:17 (UTC) |
| Distance from |
Running Springs, CA - 4 km (2 miles) E (99 degrees) Lake Arrowhead, CA - 12 km (8 miles) ESE (115 degrees) Highland, CA - 15 km (10 miles) ENE (57 degrees) Big Bear Lake, CA - 15 km (9 miles) WSW (252 degrees) Mentone, CA - 16 km (10 miles) NNE (22 degrees) |
| Coordinates | 34 deg. 12.1 min. N (34.202N), 117 deg. 4.1 min. W (117.068W) |
| Depth | 6.56 km (4.10 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=6, Nph=12, Dmin=5.4 km, Rmss=0.08 sec, Erho=0.4 km, Erzz=0.87 km, Gp=139 degrees |
| Event ID# | ci41270752 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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