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 5:11:58 AM (PDT) on Wednesday, October 28, 2026.
The magnitude 1.8 event occurred 31 km (19 miles) NE (38 degrees) of Redwood Valley, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.8 - duration magnitude (Md) |
| Time | Wednesday, October 28, 2026 at 5:11:58 AM (PDT) Wednesday, October 28, 2026 at 12:11:58 (UTC) |
| Distance from |
Redwood Valley, CA - 31 km (19 miles) NE (38 degrees) Willits, CA - 33 km (20 miles) ENE (76 degrees) Brooktrails, CA - 35 km (22 miles) E (83 degrees) Upper Lake, CA - 36 km (22 miles) N (350 degrees) Nice, CA - 41 km (26 miles) NNW (344 degrees) |
| Coordinates | 39 deg. 28.9 min. N (39.481N), 122 deg. 59.1 min. W (122.984W) |
| Depth | 6.33 km (3.90 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=7, Nph=7, Dmin=5.3 km, Rmss=0.02 sec, Erho=0.5 km, Erzz=1.11000001 km, Gp=112 degrees |
| Event ID# | nc75458912 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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