Alaska earthquakes

M2.3 earthquake 66 km SSE of Adak, Alaska

A magnitude 2.3 earthquake struck 66 km SSE of Adak, Alaska on Wed, Dec 6, 2017, 7:34 AM HAST (17:34 UTC), 26 km (16 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
2.3 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2017-12-06 17:34:00 UTC
Depth
25.6 km (15.9 mi), shallow
Epicenter
51.354° N, 176.173° 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
24

Nearby

Within 100 km, magnitude 1.5 and up: 171 in the 60 days after this one and 77 in the 30 days before it.

After

The first 60 of 171.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak017fml1njc (also filed as ak17499704). Read Fri, Oct 2, 2026, 1:36 AM UTC.