M1.26 Earthquake – 11 km SSE of Portola Valley, CA
28 September 2026, 12:57 UTC · 1 hour ago · Data: USGS
A magnitude 1.26 earthquake struck 11 km SSE of Portola Valley, CA on 28 September 2026, 12:57 UTC, at a depth of 1.9 km. This was a micro earthquake rarely felt by people.
- Magnitude
- 1.26 (md)
- Location
- 11 km SSE of Portola Valley, CA
- Date & time
- 28 September 2026, 12:57 UTC
- Coordinates
- 37.2928, -122.1982
- Depth
- 1.90 km
- Region
- Worldwide
- Source
- USGS event page
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