Magnitude 3.9 earthquake reported 42 miles southeast of Cantwell, Alaska, United States

A magnitude 3.9 earthquake occurred early Monday morning, September 28, 2026, at 3:46 a.m. local time near Cantwell, Denali, Alaska, USA, according to the United States Geological Survey.
According to preliminary data, the quake was located at a shallow depth of 10.3 miles. Shallow earthquakes are felt more strongly than deeper ones because they are closer to the surface. The exact magnitude, epicenter, and depth of the quake may be revised over the next few hours or minutes as seismologists review the data and refine their calculations, or as other agencies issue their reports.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC), which also listed the quake at magnitude 3.9.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Cantwell (pop. 220), located 42 miles from the epicenter.


Earthquake data:
Date & time: Sep 28, 2026 02:46 a.m. (Anchorage time) local time (28 Sep 2026 11:46 GMT)
Magnitude: 3.9
Hypocenter depth: 16.60 km
Epicenter coordinates: 62.94°N / 148.08°W (Matanuska-Susitna Borough, Alaska, United States)
Primary data source: USGS
https://www.volcanodiscovery.com/earthquakes/news/366862/Magnitude-39-earthquake-reported-42-miles-southeast-of-Cantwell-Alaska-United-States.html