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 3:35:14 AM (PDT) on Tuesday, August 18, 2026.
The magnitude 1.7 event occurred 8 km (5 miles) NW of Redwood Valley, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.7 - duration magnitude (Md) |
| Time | Tuesday, August 18, 2026 at 3:35:14 AM (PDT) Tuesday, August 18, 2026 at 10:35:14 (UTC) |
| Distance from |
Redwood Valley, CA - 8 km (5 miles) NW (316 degrees) Willits, CA - 13 km (8 miles) SE (144 degrees) Brooktrails, CA - 17 km (11 miles) SE (145 degrees) Ukiah, CA - 19 km (12 miles) NNW (345 degrees) Talmage, CA - 22 km (14 miles) NNW (337 degrees) |
| Coordinates | 39 deg. 19.0 min. N (39.317N), 123 deg. 16.1 min. W (123.269W) |
| Depth | 5.91 km (3.70 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=16, Nph=16, Dmin=12.7 km, Rmss=0.08 sec, Erho=0.28 km, Erzz=1.36000001 km, Gp=81 degrees |
| Event ID# | nc75420542 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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