Alaska earthquakes

M1.8 earthquake 17 km SSE of Adak, Alaska

A magnitude 1.8 earthquake struck 17 km SSE of Adak, Alaska on Sun, Nov 29, 2020, 3:21 AM HAST (13:21 UTC), 61 km (38 mi) below the surface.

A larger quake followed: M3.9 48 km S of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
1.8 (ml), micro
Local time
UTC
2020-11-29 13:21:24 UTC
Depth
61.2 km (38.0 mi), shallow
Epicenter
51.731° N, 176.534° 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
17

Nearby

Within 100 km, magnitude 1.5 and up: 145 in the 60 days after this one and 66 in the 30 days before it.

After

The first 60 of 145.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak020fcld3ps. Read Sun, Sep 27, 2026, 5:47 AM UTC.