Magnitude 6.5 earthquake strikes near Nikolski (Alaska)
The quake was recorded at a depth of 112 km, according to the US Geological Survey (USGS).
A magnitude 6.5 earthquake was recorded on September 17, 2026 at 11:19 AM (Brasília time) near Nikolski (Alaska), according to the United States Geological Survey (USGS). The quake occurred at a depth of roughly 112 km.
Authorities are assessing tsunami risk for the region.
What this magnitude means
Earthquakes between magnitude 6 and 7 are considered strong and are usually felt hundreds of kilometers from the epicenter.
What to expect in the coming days
After a main shock, aftershocks — smaller quakes in the same region — are expected over the following days and weeks, with frequency decreasing over time, a well-established pattern in seismology.
With data from the USGS (United States Geological Survey).
Source: USGS