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 3:48:17 AM (PDT) on Tuesday, October 20, 2026.
The magnitude 2.4 event occurred 6 km (4 miles) N of Redwood Valley, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 2.4 - duration magnitude (Md) |
| Time | Tuesday, October 20, 2026 at 3:48:17 AM (PDT) Tuesday, October 20, 2026 at 10:48:17 (UTC) |
| Distance from |
Redwood Valley, CA - 6 km (4 miles) N (351 degrees) Willits, CA - 15 km (10 miles) SE (129 degrees) Ukiah, CA - 19 km (12 miles) N (358 degrees) Brooktrails, CA - 20 km (12 miles) SE (133 degrees) Talmage, CA - 21 km (13 miles) N (349 degrees) |
| Coordinates | 39 deg. 19.3 min. N (39.322N), 123 deg. 12.9 min. W (123.216W) |
| Depth | 2.03 km (1.30 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=23, Nph=23, Dmin=2.5 km, Rmss=0.05 sec, Erho=0.18 km, Erzz=0.379999995 km, Gp=48 degrees |
| Event ID# | nc75452456 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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