Alaska earthquakes

M2.9 earthquake 99 km W of Adak, Alaska

A magnitude 2.9 earthquake struck 99 km W of Adak, Alaska on Sun, Apr 12, 2026, 9:52 AM HADT (18:52 UTC), 150 km (93 mi) below the surface.

A larger quake followed: M4.1 135 km WSW of Adak, Alaska. This one was a foreshock.

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

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The earthquake

Magnitude: 2.9 (ML, local (Richter)), micro
Magnitude from: USGS National Earthquake Information Center
Local time: Sun, Apr 12, 2026, 9:52 AM HADT
UTC: 2026-04-12 18:52:52 UTC
Depth: 149.7 km (93.0 mi), intermediate-depth
Epicenter: 51.769° N, 178.070° W
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
2.9	ML, local (Richter)	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.105 · 12 stations
2.4	ML, local (Richter)	Alaska Earthquake Center	Reviewed · ±0.4 · 18 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 13.5 km horizontally, 5.1 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 147°
Stations used: 19

Nearby

Within 100 km, magnitude 1.5 and up: 174 in the 60 days after this one and 88 in the 30 days before it.

After

The first 60 of 174.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000sxrm (also filed as aka2026hevxci). Read Thu, Oct 1, 2026, 5:02 PM UTC.