Alaska earthquakes

M2.6 earthquake 60 km SSW of Atka, Alaska

A magnitude 2.6 earthquake struck 60 km SSW of Atka, Alaska on Sat, Sep 19, 2020, 5:02 AM HADT (14:02 UTC), 30 km (18 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.

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The earthquake

Magnitude: 2.6 (ml), micro
Local time: Sat, Sep 19, 2020, 5:02 AM HADT
UTC: 2020-09-19 14:02:39 UTC
Depth: 29.7 km (18.5 mi), shallow
Epicenter: 51.713° N, 174.597° 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 6.3 km horizontally, 27.9 km in depth
Magnitude uncertainty: ±0.13
Depth from: From location
Station coverage gap: 244°, poorly surrounded by stations
Stations used: 23

Nearby

Within 100 km, magnitude 1.5 and up: 108 in the 60 days after this one and 61 in the 30 days before it.

After

The first 60 of 108.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000c593 (also filed as ak020c36ouu6). Read Mon, Sep 28, 2026, 3:04 AM UTC.