Alaska earthquakes

M2.0 earthquake 161 km WSW of Adak, Alaska

A magnitude 2.0 earthquake struck 161 km WSW of Adak, Alaska on Wed, Oct 17, 2018, 2:27 AM HADT (11:27 UTC), 73 km (45 mi) below the surface.

A larger quake followed: M4.7 128 km SW 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: Wed, Oct 17, 2018, 2:27 AM HADT
UTC: 2018-10-17 11:27:33 UTC
Depth: 72.6 km (45.1 mi), intermediate-depth
Epicenter: 51.448° N, 178.869° 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: 155 in the 60 days after this one and 152 in the 30 days before it.

After

The first 60 of 155.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak018dbsk9rn (also filed as ak20289227). Read Fri, Oct 2, 2026, 10:18 AM UTC.