USGSSeptember 21, 2026
M2.5 earthquake, 21 km W of Petrolia, CA
A magnitude 2.5 earthquake was recorded 21 km W of Petrolia, CA at a depth of 10 km, according to the U.S. Geological Survey. It was the 9,263rd earthquake of magnitude 2.5 or more the USGS located in and near the U.S. in 2026, against 12,608 a year on average in 2016-2025.
M2.5
The notice
- Issued by
- U.S. Geological Survey
- Area
- 21 km W of Petrolia, CA
- State
- California
- Magnitude
- 2.5 (duration magnitude)
- Depth
- 10.5 km
- Time
- 2026-09-21 22:41:51 UTC
- Status
- automatic solution (may be revised)
- Epicentre
- 40.304, -124.536
- Official source
- U.S. Geological Survey: the notice at its source
Source: U.S. Geological Survey: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.