Alaska earthquakes

M1.5 earthquake 25 km SSW of Adak, Alaska

A magnitude 1.5 earthquake struck 25 km SSW of Adak, Alaska on Tue, Feb 6, 2018, 12:49 AM HAST (10:49 UTC), 41 km (26 mi) below the surface.

A larger quake followed: M5.2 22 km SSW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 1.5 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Tue, Feb 6, 2018, 12:49 AM HAST
UTC: 2018-02-06 10:49:13 UTC
Depth: 41.4 km (25.7 mi), shallow
Epicenter: 51.657° N, 176.742° 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: 135 in the 60 days after this one and 125 in the 30 days before it.

After

The first 60 of 135.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0181pd4pf0 (also filed as ak18436851). Read Thu, Oct 1, 2026, 11:41 PM UTC.