Alaska earthquakes

M1.8 earthquake 89 km SW of Adak, Alaska

A magnitude 1.8 earthquake struck 89 km SW of Adak, Alaska on Fri, Nov 17, 2017, 2:31 AM HAST (12:31 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M4.0 161 km SW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 1.8 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Fri, Nov 17, 2017, 2:31 AM HAST
UTC: 2017-11-17 12:31:04 UTC
Depth: 13.2 km (8.2 mi), shallow
Epicenter: 51.356° N, 177.618° 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: 13

Nearby

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and 144 in the 30 days before it.

After

The first 60 of at least 200.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak017er2u9cc (also filed as ak17358079). Read Thu, Oct 1, 2026, 11:41 PM UTC.