Alaska earthquakes

M2.2 earthquake 46 km NW of Atka, Alaska

A magnitude 2.2 earthquake struck 46 km NW of Atka, Alaska on Fri, Apr 22, 2016, 2:33 AM HADT (11:33 UTC), 228 km (142 mi) below the surface.

A larger quake followed: M4.4 76 km NNE of Atka, 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: 2.2 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Fri, Apr 22, 2016, 2:33 AM HADT
UTC: 2016-04-22 11:33:52 UTC
Depth: 228.4 km (141.9 mi), intermediate-depth
Epicenter: 52.466° N, 174.721° 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: 15

Nearby

Within 100 km, magnitude 1.5 and up: 51 in the 60 days after this one and 33 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak016572h644 (also filed as ak13502787). Read Sun, Oct 4, 2026, 10:41 PM UTC.