Alaska earthquakes

M2.1 earthquake 90 km W of Adak, Alaska

A magnitude 2.1 earthquake struck 90 km W of Adak, Alaska on Fri, Feb 17, 2023, 4:14 AM HAST (14:14 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M5.0 121 km WSW of Adak, 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: 2.1 (ml), micro
Local time: Fri, Feb 17, 2023, 4:14 AM HAST
UTC: 2023-02-17 14:14:24 UTC
Depth: 6.0 km (3.7 mi), shallow
Epicenter: 51.841° N, 177.945° 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.

Stations used: 26

Nearby

Within 100 km, magnitude 1.5 and up: at least 201 in the 60 days after this one and 135 in the 30 days before it.

After

The first 60 of at least 201.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak02327m7s21 (also filed as av91764596). Read Wed, Sep 30, 2026, 9:11 AM UTC.