Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #5: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A minor earthquake occurred at 10:33:27 AM (PDT) on Thursday, September 3, 2026.
The magnitude 3.3 event occurred 3 km (2 miles) ESE of Larkfield-Wikiup, CA.
The hypocentral depth is 9 km ( 6 miles).
| Magnitude | 3.3 - moment magnitude (Mw) |
| Time | Thursday, September 3, 2026 at 10:33:27 AM (PDT) Thursday, September 3, 2026 at 17:33:27 (UTC) |
| Distance from |
Larkfield-Wikiup, CA - 3 km (2 miles) ESE (114 degrees) Santa Rosa, CA - 6 km (4 miles) N (351 degrees) Roseland, CA - 9 km (5 miles) N (7 degrees) Windsor, CA - 10 km (6 miles) ESE (120 degrees) Graton, CA - 15 km (9 miles) ENE (62 degrees) |
| Coordinates | 38 deg. 30.1 min. N (38.501N), 122 deg. 42.9 min. W (122.715W) |
| Depth | 8.84 km (5.50 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=149, Nph=178, Dmin=6.8 km, Rmss=0.13 sec, Erho=0.1 km, Erzz=0.31 km, Gp=17 degrees |
| Event ID# | nc75429272 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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