USGSOctober 19, 2026
M4.0 earthquake, 161 km S of Nikolski, Alaska
A magnitude 4.0 earthquake was recorded 161 km S of Nikolski, Alaska at a depth of 10 km, according to the U.S. Geological Survey. It was the 10,101st 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.
M4.0
The notice
- Issued by
- U.S. Geological Survey
- Area
- 161 km S of Nikolski, Alaska
- State
- Alaska
- Magnitude
- 4.0 (body-wave magnitude)
- Depth
- 10.0 km
- Time
- 2026-10-19 05:08:40 UTC
- Status
- reviewed by a seismologist
- Epicentre
- 51.515, -168.422
- 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.