M1.77 Earthquake – 8 km W of Saint Helena, CA
18 September 2026, 02:12 UTC · 1 hour ago · Data: USGS
A magnitude 1.77 earthquake struck 8 km W of Saint Helena, CA on 18 September 2026, 02:12 UTC, at a depth of 7.7 km. This was a micro earthquake rarely felt by people.
- Magnitude
- 1.77 (md)
- Location
- 8 km W of Saint Helena, CA
- Date & time
- 18 September 2026, 02:12 UTC
- Coordinates
- 38.4945, -122.5557
- Depth
- 7.65 km
- Region
- Worldwide
- Source
- USGS event page
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