Alaska earthquakes

M1.7 earthquake 130 km WSW of Adak, Alaska

A magnitude 1.7 earthquake struck 130 km WSW of Adak, Alaska on Thu, Jul 8, 2021, 9:22 AM HADT (18:22 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M4.8 128 km WSW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 1.7 (ml), micro
Local time: Thu, Jul 8, 2021, 9:22 AM HADT
UTC: 2021-07-08 18:22:52 UTC
Depth: 6.6 km (4.1 mi), shallow
Epicenter: 51.634° N, 178.489° 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: 29

Nearby

Within 100 km, magnitude 1.5 and up: 195 in the 60 days after this one and 53 in the 30 days before it.

After

The first 60 of 195.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0218ovf80i (also filed as av91303191). Read Thu, Sep 24, 2026, 1:24 PM UTC.