Skip to main content
AREAZINENotices · US CA UK AU

USGSOctober 1, 2026

M3.1 earthquake, 20 km ESE of Anza, CA

A magnitude 3.1 earthquake was recorded 20 km ESE of Anza, CA at a depth of 5 km, according to the U.S. Geological Survey. It was the 9,465th 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.

M3.1

The notice

Issued by
U.S. Geological Survey
Area
20 km ESE of Anza, CA
State
California
Magnitude
3.1 (local magnitude)
Depth
5.1 km
Time
2026-10-01 00:01:59 UTC
Felt reports
8 people told the USGS they felt it (strongest reported intensity 4.1)
Status
reviewed by a seismologist
Epicentre
33.502, -116.463
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.