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 7:18:30 AM (PST) on Saturday, December 13, 2025.
The magnitude 1.6 event occurred 20 km (12 miles) S of Hayfork, CA.
The hypocentral depth is -1 km (-1 miles).
| Magnitude | 1.6 - duration magnitude (Md) |
| Time | Saturday, December 13, 2025 at 7:18:30 AM (PST) Saturday, December 13, 2025 at 15:18:30 (UTC) |
| Distance from |
Hayfork, CA - 20 km (12 miles) S (188 degrees) Weaverville, CA - 46 km (28 miles) SSW (210 degrees) Lewiston, CA - 50 km (31 miles) SW (223 degrees) Redway, CA - 59 km (37 miles) ENE (61 degrees) Covelo, CA - 65 km (40 miles) N (3 degrees) |
| Coordinates | 40 deg. 22.5 min. N (40.376N), 123 deg. 12.8 min. W (123.214W) |
| Depth | -1.42 km (-0.90 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=4, Nph=4, Dmin=13.1 km, Rmss=0.08 sec, Erho=0.89 km, Erzz=7.34000015 km, Gp=169 degrees |
| Event ID# | nc75279151 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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