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USGSSeptember 23, 2026

M2.8 earthquake, 17 km WSW of Johannesburg, CA

A magnitude 2.8 earthquake was recorded 17 km WSW of Johannesburg, CA at a depth of 7 km, according to the U.S. Geological Survey. It was the 9,319th 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.

M2.8

The notice

Issued by
U.S. Geological Survey
Area
17 km WSW of Johannesburg, CA
State
California
Magnitude
2.8 (local magnitude)
Depth
6.7 km
Time
2026-09-23 20:44:36 UTC
Status
reviewed by a seismologist
Epicentre
35.310, -117.806
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.