FALSE PASS, Alaska – A magnitude 3.9 earthquake struck roughly 27 kilometers north-northeast of False Pass on Sunday afternoon, according to preliminary data from the U.S. Geological Survey. The quake occurred at a depth of about 195 kilometers beneath the Aleutian region, making it a deep seismic event less likely to cause surface damage.
According to the USGS, the tremor was recorded at 8:11 a.m. Alaska time and was part of a broader area of tectonic activity along the Aleutian Arc, where the Pacific Plate subducts beneath the North American Plate. No damage or injuries have been reported, and no tsunami warnings were issued.
Residents in nearby communities, including Cold Bay and Sand Point, may have felt light shaking, but none have yet submitted felt reports through the USGS “Did You Feel It?” survey.
Alaska averages thousands of small earthquakes annually, particularly along the southern coastline and Aleutian chain. While Sunday’s quake was moderate and deep, officials encourage residents to review earthquake safety steps and keep emergency kits on hand.
Authorities say monitoring will continue for aftershocks or additional seismic movement in the region through the week.
