Alaska earthquakes

M2.6 earthquake 39 km ENE of Adak, Alaska

A magnitude 2.6 earthquake struck 39 km ENE of Adak, Alaska on Sat, Jul 3, 2021, 5:11 AM HADT (14:11 UTC), 96 km (60 mi) below the surface.

A larger quake followed: M5.0 49 km ESE of Adak, Alaska. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 2.6 (ml), micro
Local time: Sat, Jul 3, 2021, 5:11 AM HADT
UTC: 2021-07-03 14:11:17 UTC
Depth: 96.4 km (59.9 mi), intermediate-depth
Epicenter: 51.950° N, 176.076° 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.

Location uncertainty: About 11.7 km horizontally, 4.6 km in depth
Magnitude uncertainty: ±0.13
Depth from: From location
Station coverage gap: 172°
Stations used: 20

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 24 in the 30 days before it.

After

The first 60 of at least 199.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000f76c (also filed as ak0218gjabm1). Read Thu, Sep 24, 2026, 10:19 AM UTC.