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 #7: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 3:09:43 AM (PDT) on Thursday, October 23, 2025.
The magnitude 1.6 event occurred 5 km (3 miles) NW of March Air Reserve Base, CA.
The hypocentral depth is 13 km ( 8 miles).
| Magnitude | 1.6 - local magnitude (Ml) |
| Time | Thursday, October 23, 2025 at 3:09:43 AM (PDT) Thursday, October 23, 2025 at 10:09:43 (UTC) |
| Distance from |
March Air Reserve Base, CA - 5 km (3 miles) NW (312 degrees) Woodcrest, CA - 7 km (4 miles) NE (48 degrees) Moreno Valley, CA - 7 km (4 miles) W (267 degrees) Riverside, CA - 9 km (6 miles) ESE (108 degrees) Mead Valley, CA - 10 km (6 miles) N (356 degrees) |
| Coordinates | 33 deg. 55.4 min. N (33.923N), 117 deg. 18.2 min. W (117.304W) |
| Depth | 13.23 km (8.20 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=92, Nph=168, Dmin=6.0 km, Rmss=0.19 sec, Erho=0.14 km, Erzz=0.29 km, Gp=37 degrees |
| Event ID# | ci41113191 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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