USGSOctober 18, 2026
M3.8 earthquake, 86 km SSW of Unalaska, Alaska
A magnitude 3.8 earthquake was recorded 86 km SSW of Unalaska, Alaska at a depth of 40 km, according to the U.S. Geological Survey. It was the 10,074th 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.
M3.8
The notice
- Issued by
- U.S. Geological Survey
- Area
- 86 km SSW of Unalaska, Alaska
- State
- Alaska
- Magnitude
- 3.8 (body-wave magnitude)
- Depth
- 39.8 km
- Time
- 2026-10-18 08:02:43 UTC
- Status
- reviewed by a seismologist
- Epicentre
- 53.151, -167.005
- 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.