Alaska earthquakes

M2.8 earthquake 298 km W of Adak, Alaska

A magnitude 2.8 earthquake struck 298 km W of Adak, Alaska on Mon, Apr 13, 2026, 6:40 PM GMT+12 (06:40 UTC), 69 km (43 mi) below the surface.

A larger quake followed: M6.1 Rat Islands, Aleutian Islands, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 2.8 (ML, local (Richter)), micro
Magnitude from: USGS National Earthquake Information Center
Local time: Mon, Apr 13, 2026, 6:40 PM GMT+12
UTC: 2026-04-13 06:40:07 UTC
Depth: 69.4 km (43.1 mi), shallow
Epicenter: 51.587° N, 179.071° E
Region: Alaska
Tsunami flag: No
Status: Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
2.8	ML, local (Richter)	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.097 · 14 stations
2.9	ML, local (Richter)	Alaska Earthquake Center	Reviewed · ±0.3 · 12 stations

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 11.9 km horizontally, 13.9 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 171°
Stations used: 17

Nearby

Within 100 km, magnitude 1.5 and up: 88 in the 60 days after this one and 36 in the 30 days before it.

After

The first 60 of 88.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000spsx (also filed as aka2026hftipb). Read Fri, Oct 2, 2026, 1:48 AM UTC.