Alaska earthquakes

M3.2 earthquake 240 km WSW of Adak, Alaska

A magnitude 3.2 earthquake struck 240 km WSW of Adak, Alaska on Tue, Jan 28, 2020, 7:40 PM GMT-12 (07:40 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.7 239 km WSW of Adak, Alaska. This one was a foreshock.

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

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The earthquake

Magnitude: 3.2 (ml), minor
Local time: Tue, Jan 28, 2020, 7:40 PM GMT-12
UTC: 2020-01-29 07:40:18 UTC
Depth: 10.1 km (6.3 mi), shallow
Epicenter: 50.966° N, 179.778° W
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.

Location uncertainty: About 3.0 km horizontally, 9.1 km in depth
Depth from: From location
Station coverage gap: 229°, poorly surrounded by stations
Stations used: 24

Nearby

Within 100 km, magnitude 1.5 and up: 99 in the 60 days after this one and 154 in the 30 days before it.

After

The first 60 of 99.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70007p2v (also filed as ak0201c2zpoc). Read Wed, Sep 30, 2026, 12:49 PM UTC.