Alaska earthquakes

M4.6 earthquake 257 km ESE of Attu Station, Alaska

A magnitude 4.6 earthquake struck 257 km ESE of Attu Station, Alaska on Sat, Jan 16, 1982, 3:37 PM GMT+12 (03:37 UTC), 48 km (30 mi) below the surface.

A larger quake followed: M4.7 Rat Islands, Aleutian Islands, Alaska. This one was a foreshock.

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The earthquake

Magnitude
4.6 (mb), light
Local time
UTC
1982-01-16 03:37:54 UTC
Depth
48.0 km (29.8 mi), shallow
Epicenter
51.671° N, 176.440° 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.

Nearby

Within 100 km, magnitude 1.6 and up: 1 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 4.7Rat Islands, Aleutian Islands, Alaska · 16287 days ago · 65 km deep · 88 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001j29. Read Tue, Sep 22, 2026, 9:19 AM UTC.