Skip to main content
AREAZINENotices · US CA UK AU

USGSSeptember 18, 2026

M2.6 earthquake, 17 km W of Petrolia, CA

A magnitude 2.6 earthquake was recorded 17 km W of Petrolia, CA at a depth of 9 km, according to the U.S. Geological Survey. It was the 9,127th 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.

M2.6

The notice

Issued by
U.S. Geological Survey
Area
17 km W of Petrolia, CA
State
California
Magnitude
2.6 (duration magnitude)
Depth
8.6 km
Time
2026-09-18 04:39:53 UTC
Status
automatic solution (may be revised)
Epicentre
40.294, -124.487
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.