Alaska earthquakes

M2.6 earthquake 72 km ENE of Adak, Alaska

A magnitude 2.6 earthquake struck 72 km ENE of Adak, Alaska on Tue, Sep 15, 2020, 10:09 AM HADT (19:09 UTC), 190 km (118 mi) below the surface.

A larger quake followed: M5.3 76 km SW of Atka, Alaska. This one was a foreshock.

Map

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

Open the live map with earthquakes

The earthquake

Magnitude: 2.6 (ml), micro
Local time: Tue, Sep 15, 2020, 10:09 AM HADT
UTC: 2020-09-15 19:09:18 UTC
Depth: 190.3 km (118.3 mi), intermediate-depth
Epicenter: 52.060° N, 175.620° 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 14.3 km horizontally, 5.6 km in depth
Magnitude uncertainty: ±0.12
Depth from: From location
Station coverage gap: 168°
Stations used: 24

Nearby

Within 100 km, magnitude 1.5 and up: 129 in the 60 days after this one and 78 in the 30 days before it.

After

The first 60 of 129.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000c1fk (also filed as ak020bwnk3bk). Read Mon, Sep 28, 2026, 3:04 AM UTC.