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5.3Moderate

M 5.3 - 235 km ESE of Attu Station, Alaska

235 km ESE of Attu Station, Alaska

March 18, 2026 at 1:21 AM UTC

Alaska Earthquakes

Seismic Data

Magnitude
M5.3
Moderate
Depth
10.0 km
below surface
Coordinates
52.1503ยฐN, 176.4619ยฐE
epicenter
Shakemap MMI
3.2
Modified Mercalli Intensity

About This Earthquake

This was a moderate earthquake registering M5.3 on the moment magnitude scale. It struck at 235 km ESE of Attu Station, Alaska at a depth of 10.0 km below the surface.

The earthquake occurred on March 18, 2026 at 1:21 AM UTC. View the full USGS event page for detailed waveform data, station information, and ShakeMap products: USGS Event us6000sgvw.

Frequently Asked Questions

How strong was the 235 km ESE of Attu Station, Alaska earthquake?

This was a moderate earthquake with a magnitude of 5.3. Earthquakes of this magnitude can cause minor to moderate damage.

Where was the 235 km ESE of Attu Station, Alaska earthquake felt?

The earthquake occurred at 235 km ESE of Attu Station, Alaska at a depth of 10.0 km. This event occurred in or near Alaska.

M5.3 Moderate Earthquake - 235 km ESE of Attu Station, Alaska | USGS