Alaska earthquakes

M5.5 earthquake 158 km SSE of Attu Station, Alaska

A magnitude 5.5 earthquake struck 158 km SSE of Attu Station, Alaska on Sat, Feb 6, 1965, 2:08 AM GMT+12 (14:08 UTC), 25 km (16 mi) below the surface.

A larger quake followed: M6.0 152 km SE of Attu Station, Alaska. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude: 5.5 (mw), moderate
Local time: Sat, Feb 6, 1965, 2:08 AM GMT+12
UTC: 1965-02-05 14:08:23 UTC
Depth: 25.0 km (15.5 mi), shallow
Epicenter: 51.656° N, 174.458° 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.

Magnitude uncertainty: ±0.20
Depth from: From location

Nearby

Within 100 km, magnitude 2.5 and up: 19 in the 60 days after this one and 17 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 iscgem859573 (also filed as ushis2767). Read Tue, Sep 22, 2026, 10:35 PM UTC.