Alaska earthquakes

M1.7 earthquake 91 km W of Adak, Alaska

A magnitude 1.7 earthquake struck 91 km W of Adak, Alaska on Sat, Aug 8, 2026, 4:58 AM HADT (13:58 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M5.3 151 km WSW of Adak, Alaska. This one was a foreshock.

Map

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

Open the live map with earthquakes

The earthquake

Magnitude: 1.7 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Sat, Aug 8, 2026, 4:58 AM HADT
UTC: 2026-08-08 13:58:37 UTC
Depth: 15.2 km (9.4 mi), shallow
Epicenter: 51.851° N, 177.961° 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
1.7	ML, local (Richter)	Alaska Earthquake Center	Preferred · Reviewed · ±0.2 · 11 stations
1.01	ML, local (Richter)	AV	Final · ±0.342507826925779 · 9 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 8.5 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.20
Station coverage gap: 94°
Stations used: 18

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 since this one and 136 in the 30 days before it.

After

The first 60 of at least 199.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event aka2026ppotqa (also filed as av94368473). Read Thu, Oct 1, 2026, 3:42 AM UTC.