USGSSeptember 18, 2026
M3.1 earthquake, 83 km ESE of Adak, Alaska
A magnitude 3.1 earthquake was recorded 83 km ESE of Adak, Alaska at a depth of 22 km, according to the U.S. Geological Survey. It was the 9,143rd 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
- 83 km ESE of Adak, Alaska
- State
- Alaska
- Magnitude
- 3.1 (local magnitude)
- Depth
- 21.9 km
- Time
- 2026-09-18 12:34:04 UTC
- Status
- reviewed by a seismologist
- Epicentre
- 51.472, -175.623
- 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.