Nikolski, Alaska – A 4.2 magnitude earthquake struck southwest of Nikolski on Monday evening, shaking part of Alaska’s Aleutian Islands region.
According to the U.S. Geological Survey (USGS), the quake occurred at 20:15:49 UTC on February 23, 2026, approximately 72 kilometers (about 45 miles) southwest of Nikolski. The tremor originated at a depth of 10 kilometers, which is considered relatively shallow and can sometimes allow shaking to be felt more noticeably near the epicenter.
The USGS has marked the event as “reviewed,” meaning seismologists have confirmed the data. As of Monday night, there were no immediate reports of injuries or structural damage. The agency’s “Did You Feel It?” reporting tool had not yet received public responses.
Nikolski is a small community located in Aleutians West Census Area, within the Unalaska region of Alaska. The Aleutian Islands sit along the Pacific “Ring of Fire,” one of the most seismically active zones in the world, where earthquakes are common due to tectonic plate movement.
While a magnitude 4.2 earthquake is generally classified as light, it can be felt by people near the epicenter but typically does not cause significant damage.
Residents in the Aleutians region are encouraged to monitor official updates and review earthquake preparedness plans.
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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