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 12:40:21 PM (PDT) on Tuesday, September 8, 2026.
The magnitude 1.7 event occurred 27 km (17 miles) NE (37 degrees) of Redwood Valley, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 1.7 - duration magnitude (Md) |
| Time | Tuesday, September 8, 2026 at 12:40:21 PM (PDT) Tuesday, September 8, 2026 at 19:40:21 (UTC) |
| Distance from |
Redwood Valley, CA - 27 km (17 miles) NE (37 degrees) Willits, CA - 30 km (19 miles) E (79 degrees) Brooktrails, CA - 32 km (20 miles) E (87 degrees) Upper Lake, CA - 34 km (21 miles) NNW (345 degrees) Ukiah, CA - 38 km (24 miles) NNE (26 degrees) |
| Coordinates | 39 deg. 27.6 min. N (39.460N), 123 deg. 0.9 min. W (123.014W) |
| Depth | 7.53 km (4.70 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=8, Nph=8, Dmin=8.8 km, Rmss=0.06 sec, Erho=0.73 km, Erzz=2.24000001 km, Gp=99 degrees |
| Event ID# | nc75431912 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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