Alaska earthquakes

M2.9 earthquake 15 km NNE of Atka, Alaska

A magnitude 2.9 earthquake struck 15 km NNE of Atka, Alaska on Sat, Jun 12, 2021, 5:17 AM HADT (14:17 UTC), 178 km (111 mi) below the surface.

A larger quake followed: M4.0 66 km ESE of Atka, AK. This one was a foreshock.

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The earthquake

Magnitude: 2.9 (ml), micro
Local time: Sat, Jun 12, 2021, 5:17 AM HADT
UTC: 2021-06-12 14:17:22 UTC
Depth: 178.1 km (110.7 mi), intermediate-depth
Epicenter: 52.329° N, 174.131° 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 26.4 km horizontally, 4.2 km in depth
Magnitude uncertainty: ±0.12
Depth from: From location
Station coverage gap: 129°
Stations used: 24

Nearby

Within 100 km, magnitude 1.5 and up: 80 in the 60 days after this one and 11 in the 30 days before it.

After

The first 60 of 80.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000echr (also filed as ak0217ht0n67). Read Thu, Sep 24, 2026, 7:13 AM UTC.