Alaska earthquakes

M3.1 earthquake 38 km NNE of Atka, Alaska

A magnitude 3.1 earthquake struck 38 km NNE of Atka, Alaska on Wed, Apr 15, 2026, 2:57 PM HADT (23:57 UTC), 162 km (101 mi) below the surface.

A larger quake followed: M4.0 113 km NE of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude
3.1 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2026-04-15 23:57:21 UTC
Depth
162.3 km (100.8 mi), intermediate-depth
Epicenter
52.498° N, 173.924° 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 12.5 km horizontally, 8.8 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
173°
Stations used
13

Nearby

Within 100 km, magnitude 1.5 and up: 44 in the 60 days after this one and 9 in the 30 days before it.

After

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000srhx. Read Thu, Oct 1, 2026, 4:22 AM UTC.