Alaska earthquakes

M2.1 earthquake 213 km W of Adak, Alaska

A magnitude 2.1 earthquake struck 213 km W of Adak, Alaska on Sun, Jun 10, 2018, 8:23 AM HADT (17:23 UTC), 77 km (48 mi) below the surface.

A larger quake followed: M4.5 Rat Islands, Aleutian Islands, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 2.1 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Sun, Jun 10, 2018, 8:23 AM HADT
UTC: 2018-06-10 17:23:45 UTC
Depth: 76.5 km (47.5 mi), intermediate-depth
Epicenter: 51.624° N, 179.703° 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: 20

Nearby

Within 100 km, magnitude 1.5 and up: 177 in the 60 days after this one and 55 in the 30 days before it.

After

The first 60 of 177.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0187ejs9ra (also filed as ak19784231). Read Thu, Oct 1, 2026, 11:02 PM UTC.