Alaska earthquakes

M1.7 earthquake 59 km W of Adak, Alaska

A magnitude 1.7 earthquake struck 59 km W of Adak, Alaska on Sun, Aug 29, 2021, 2:12 AM HADT (11:12 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M3.9 116 km WSW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
1.7 (ml), micro
Local time
UTC
2021-08-29 11:12:45 UTC
Depth
6.6 km (4.1 mi), shallow
Epicenter
51.801° N, 177.485° 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
37

Nearby

Within 100 km, magnitude 1.5 and up: 122 in the 60 days after this one and 120 in the 30 days before it.

After

The first 60 of 122.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021b2r52px (also filed as av91352651). Read Sat, Sep 26, 2026, 6:58 AM UTC.