USGSOctober 23, 2026
M4.0 earthquake, 65 km NNW of Nikolski, Alaska
A magnitude 4.0 earthquake was recorded 65 km NNW of Nikolski, Alaska at a depth of 243 km, according to the U.S. Geological Survey. It was the 10,213th 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
- 65 km NNW of Nikolski, Alaska
- State
- Alaska
- Magnitude
- 4.0 (local magnitude)
- Depth
- 242.9 km
- Time
- 2026-10-23 23:08:25 UTC
- Status
- reviewed by a seismologist
- Epicentre
- 53.502, -169.170
- 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.