M 3.1 Minor Earthquake Recorded 124 km WSW of Adak, Alaska

What Happened

A minor earthquake with a magnitude of 3.1 ml occurred on March 18, 2026, at 20:54 UTC. The seismic event was centered approximately 124 kilometers west-southwest of Adak, Alaska. The earthquake originated at a shallow depth of 10.7 kilometers.

Location Details

The earthquake’s epicenter was located at coordinates 51.339°N and 178.217°W. This position is in the Aleutian Islands region, roughly 124 kilometers from the community of Adak. The depth of 10.7 kilometers is classified as shallow; earthquakes occurring at depths less than 20 kilometers are typically more likely to be felt by residents near the epicenter than deeper events, though the remote location limits potential impact.

Impact Assessment

According to the U.S. Geological Survey (USGS), there have been no reports of the earthquake being felt by the public at this time. There is no tsunami advisory, watch, or warning in effect for this event. No alert level color has been assigned, and there are no reports of damage or injuries resulting from the tremor.

What You Should Know

Earthquakes with magnitudes between 2.5 and 3.9 are classified as minor. While they are often felt by people near the epicenter, they rarely cause structural damage. Residents in seismically active regions like Alaska are encouraged to remain prepared for routine seismic activity and the possibility of minor aftershocks.

Source

Information provided by the USGS Earthquake Hazards Program.