Alaska earthquakes

M4.7 earthquake 262 km SE of Attu Station, Alaska

A magnitude 4.7 earthquake struck 262 km SE of Attu Station, Alaska on Sat, Jan 31, 1981, 5:57 AM GMT+12 (17:57 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.6 297 km SE of Attu Station, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 4.7 (mb), light
Local time: Sat, Jan 31, 1981, 5:57 AM GMT+12
UTC: 1981-01-30 17:57:46 UTC
Depth: 33.0 km (20.5 mi), shallow
Epicenter: 51.244° N, 176.003° E
Region: Alaska
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Depth from: OPERATOR_ASSIGNED
Stations used: 15

Nearby

Within 100 km, magnitude 1.7 and up: 12 in the 60 days after this one and 5 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001byx. Read Tue, Sep 22, 2026, 9:15 AM UTC.