Alaska earthquakes

M2.0 earthquake 209 km W of Adak, Alaska

A magnitude 2.0 earthquake struck 209 km W of Adak, Alaska on Tue, Sep 26, 2017, 9:05 PM HADT (06:05 UTC), 71 km (44 mi) below the surface.

A larger quake followed: M4.8 131 km WSW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 2.0 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Tue, Sep 26, 2017, 9:05 PM HADT
UTC: 2017-09-27 06:05:09 UTC
Depth: 70.6 km (43.9 mi), intermediate-depth
Epicenter: 51.572° N, 179.622° 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: 9

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 114 in the 30 days before it.

After

The first 60 of at least 199.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak017cempeb0 (also filed as ak16988124). Read Fri, Oct 2, 2026, 10:10 AM UTC.