Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #0: 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 5:21:14 AM (PDT) on Sunday, August 31, 2025.
The magnitude 1.5 event occurred 23 km (14 miles) SSW of Ferndale, CA.
The hypocentral depth is 9 km ( 6 miles).
| Magnitude | 1.5 - duration magnitude (Md) |
| Time | Sunday, August 31, 2025 at 5:21:14 AM (PDT) Sunday, August 31, 2025 at 12:21:14 (UTC) |
| Distance from |
Ferndale, CA - 23 km (14 miles) SSW (197 degrees) Rio Dell, CA - 24 km (15 miles) WSW (237 degrees) Hydesville, CA - 28 km (17 miles) SW (228 degrees) Fortuna, CA - 29 km (18 miles) SSW (213 degrees) Humboldt Hill, CA - 40 km (25 miles) SSW (199 degrees) |
| Coordinates | 40 deg. 22.9 min. N (40.382N), 124 deg. 20.5 min. W (124.341W) |
| Depth | 9.18 km (5.70 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=9, Nph=9, Dmin=2.6 km, Rmss=0.06 sec, Erho=1.08 km, Erzz=0.670000017 km, Gp=211 degrees |
| Event ID# | nc75231212 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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