Minor M 3.9 Earthquake Recorded 112 km NW of Dutch Harbor, Alaska

Earthquakes low USGS · · Alaska

A minor 3.9 magnitude earthquake occurred 112 km northwest of Dutch Harbor, Alaska, on February 24, 2026. The event was recorded at a depth of 274.5 km with no reported impact.

What Happened

A minor earthquake with a magnitude of 3.9 mb occurred on February 24, 2026, at 12:18:09 UTC. The seismic event was centered 112 km northwest of Dutch Harbor, Alaska, at a depth of 274.5 km.

Location Details

The earthquake was located at coordinates 54.4631, -167.967. The depth of 274.5 km classifies this as a deep earthquake. Deep-focus earthquakes, which occur at depths greater than 70 km, are generally less likely to cause damage or be felt strongly at the surface than shallow earthquakes.

Impact Assessment

No felt reports have been submitted to the USGS for this event. The earthquake registered a Modified Mercalli Intensity (MMI) of 1, which corresponds to no perceived shaking. There is no tsunami advisory in effect, and no alert level color has been assigned.

What You Should Know

This event is classified as a minor earthquake. While aftershocks are a possibility following seismic activity, earthquakes of this magnitude and depth rarely cause damage. Residents are reminded to always be prepared for seismic activity by having an emergency plan in place.

Source

Attribution: USGS Event Page

Source: USGS Official Notice