Alaska earthquakes

M1.7 earthquake 55 km S of Adak, Alaska

A magnitude 1.7 earthquake struck 55 km S of Adak, Alaska on Fri, Dec 11, 2020, 9:34 AM HAST (19:34 UTC), 23 km (15 mi) below the surface.

A larger quake followed: M3.9 112 km SW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
1.7 (ml), micro
Local time
UTC
2020-12-11 19:34:16 UTC
Depth
23.4 km (14.5 mi), shallow
Epicenter
51.377° N, 176.614° 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
19

Nearby

Within 100 km, magnitude 1.5 and up: 153 in the 60 days after this one and 77 in the 30 days before it.

After

The first 60 of 153.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak020fwjgmxv. Read Sun, Sep 27, 2026, 8:09 AM UTC.