Alaska earthquakes

M2.2 earthquake 83 km ESE of Adak, Alaska

A magnitude 2.2 earthquake struck 83 km ESE of Adak, Alaska on Wed, Oct 18, 2017, 4:48 PM HADT (01:48 UTC), 57 km (36 mi) below the surface.

A larger quake followed: M4.9 82 km SW of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 2.2 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Wed, Oct 18, 2017, 4:48 PM HADT
UTC: 2017-10-19 01:48:48 UTC
Depth: 57.4 km (35.7 mi), shallow
Epicenter: 51.561° N, 175.538° 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: 11

Nearby

Within 100 km, magnitude 1.5 and up: 130 in the 60 days after this one and 47 in the 30 days before it.

After

The first 60 of 130.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak017dext5y7 (also filed as ak17095754). Read Fri, Oct 2, 2026, 12:42 AM UTC.