M1.66 Earthquake – 13 km WSW of Petrolia, CA
22 September 2026, 22:18 UTC · 1 hour ago · Data: USGS
A magnitude 1.66 earthquake struck 13 km WSW of Petrolia, CA on 22 September 2026, 22:18 UTC, at a depth of 19.9 km. This was a micro earthquake rarely felt by people.
- Magnitude
- 1.66 (md)
- Location
- 13 km WSW of Petrolia, CA
- Date & time
- 22 September 2026, 22:18 UTC
- Coordinates
- 40.2973, -124.4287
- Depth
- 19.90 km
- Region
- Worldwide
- Source
- USGS event page
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