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 8:35:37 AM (PDT) on Tuesday, September 1, 2026.
The magnitude 1.2 event occurred 17 km (11 miles) W of Boonville, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 1.2 - duration magnitude (Md) |
| Time | Tuesday, September 1, 2026 at 8:35:37 AM (PDT) Tuesday, September 1, 2026 at 15:35:37 (UTC) |
| Distance from |
Boonville, CA - 17 km (11 miles) W (271 degrees) Sea Ranch, CA - 34 km (21 miles) NNW (344 degrees) Ukiah, CA - 34 km (21 miles) WSW (244 degrees) Talmage, CA - 37 km (23 miles) WSW (248 degrees) Redwood Valley, CA - 42 km (26 miles) SW (228 degrees) |
| Coordinates | 39 deg. 0.6 min. N (39.010N), 123 deg. 33.9 min. W (123.565W) |
| Depth | 5.31 km (3.30 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=6, Nph=6, Dmin=8.9 km, Rmss=0.03 sec, Erho=0.44 km, Erzz=1.90999997 km, Gp=112 degrees |
| Event ID# | nc75428242 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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