Nikolski, Alaska – A moderate magnitude 4.9 earthquake struck about 55 kilometers east-northeast of Nikolski on Tuesday, November 25, according to the U.S. Geological Survey (USGS). The quake occurred at 17:16 UTC (8:16 a.m. local time) at a depth of approximately 68.8 kilometers beneath the Aleutian region.
According to USGS data, at least four people reported feeling mild shaking, with most responses coming from the western Aleutians. The Community Internet Intensity Map classified the shaking as Intensity IV, or light.
The USGS aftershock forecast indicates a 46% chance of aftershocks of magnitude 4 or higher within the next week, though the likelihood of stronger events remains below 2%. So far, no tsunami warning has been issued, and there have been no reports of injuries or structural damage.
Nikolski, one of Alaska’s oldest continuously occupied settlements, lies along the Pacific “Ring of Fire,” an area prone to frequent seismic activity. The Aleutian arc routinely experiences moderate-to-strong earthquakes due to the ongoing subduction of the Pacific Plate beneath the North American Plate.
Residents are reminded to review earthquake safety plans and ensure emergency supplies are up to date as seismic activity continues across the region.
This article was produced by a journalist and may include AI-assisted input. All content is reviewed for accuracy and fairness.
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