Alaska earthquakes

M2.4 earthquake 223 km W of Adak, Alaska

A magnitude 2.4 earthquake struck 223 km W of Adak, Alaska on Sun, Sep 3, 2017, 3:36 AM HADT (12:36 UTC), 89 km (55 mi) below the surface.

A larger quake followed: M4.2 248 km W 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: 2.4 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Sun, Sep 3, 2017, 3:36 AM HADT
UTC: 2017-09-03 12:36:20 UTC
Depth: 89.1 km (55.4 mi), intermediate-depth
Epicenter: 51.675° N, 179.853° 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: 19

Nearby

Within 100 km, magnitude 1.5 and up: 146 in the 60 days after this one and 174 in the 30 days before it.

After

The first 60 of 146.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak017bb1kc3i (also filed as ak16754690). Read Fri, Oct 2, 2026, 11:53 AM UTC.