Alaska earthquakes

M2.3 earthquake 128 km WNW of Adak, Alaska

A magnitude 2.3 earthquake struck 128 km WNW of Adak, Alaska on Tue, Dec 26, 2017, 2:46 PM HAST (00:46 UTC), 130 km (81 mi) below the surface.

A larger quake followed: M5.7 204 km WNW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 2.3 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Tue, Dec 26, 2017, 2:46 PM HAST
UTC: 2017-12-27 00:46:34 UTC
Depth: 129.9 km (80.7 mi), intermediate-depth
Epicenter: 52.156° N, 178.449° 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: 18

Nearby

Within 100 km, magnitude 1.5 and up: 156 in the 60 days after this one and 75 in the 30 days before it.

After

The first 60 of 156.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak017gl1a7w2 (also filed as ak18025177). Read Fri, Oct 2, 2026, 12:54 PM UTC.