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 6:33:00 AM (PDT) on Tuesday, August 18, 2026.
The magnitude 1.5 event occurred 10 km (7 miles) NNW of Redwood Valley, CA.
The hypocentral depth is 7 km ( 4 miles).
| Magnitude | 1.5 - duration magnitude (Md) |
| Time | Tuesday, August 18, 2026 at 6:33:00 AM (PDT) Tuesday, August 18, 2026 at 13:33:00 (UTC) |
| Distance from |
Redwood Valley, CA - 10 km (7 miles) NNW (348 degrees) Willits, CA - 12 km (8 miles) ESE (118 degrees) Brooktrails, CA - 16 km (10 miles) SE (126 degrees) Ukiah, CA - 23 km (14 miles) N (355 degrees) Talmage, CA - 26 km (16 miles) NNW (348 degrees) |
| Coordinates | 39 deg. 21.4 min. N (39.357N), 123 deg. 13.8 min. W (123.230W) |
| Depth | 7.26 km (4.50 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=9, Nph=9, Dmin=6.5 km, Rmss=0.10 sec, Erho=0.46 km, Erzz=1.15999997 km, Gp=114 degrees |
| Event ID# | nc75420582 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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