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 11:45:03 PM (PDT) on Monday, August 17, 2026.
The magnitude 1.5 event occurred 6 km (4 miles) NNW of Redwood Valley, CA.
The hypocentral depth is 4 km ( 3 miles).
| Magnitude | 1.5 - duration magnitude (Md) |
| Time | Monday, August 17, 2026 at 11:45:03 PM (PDT) Tuesday, August 18, 2026 at 6:45:03 (UTC) |
| Distance from |
Redwood Valley, CA - 6 km (4 miles) NNW (335 degrees) Willits, CA - 15 km (9 miles) SE (136 degrees) Ukiah, CA - 18 km (11 miles) N (353 degrees) Brooktrails, CA - 20 km (12 miles) SE (138 degrees) Talmage, CA - 21 km (13 miles) NNW (344 degrees) |
| Coordinates | 39 deg. 18.8 min. N (39.313N), 123 deg. 14.0 min. W (123.233W) |
| Depth | 4.24 km (2.60 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=9, Nph=9, Dmin=3.2 km, Rmss=0.04 sec, Erho=0.33 km, Erzz=1.05999994 km, Gp=80 degrees |
| Event ID# | nc75420457 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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