Alaska earthquakes

M4.5 earthquake 82 km NNE of Adak, Alaska

A magnitude 4.5 earthquake struck 82 km NNE of Adak, Alaska on Tue, Jul 7, 2026, 9:07 AM HADT (18:07 UTC), 174 km (108 mi) below the surface.

Map

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The earthquake

Magnitude: 4.5 (mb), light
Local time: Tue, Jul 7, 2026, 9:07 AM HADT
UTC: 2026-07-07 18:07:41 UTC
Depth: 174.0 km (108.1 mi), intermediate-depth
Epicenter: 52.589° N, 176.324° W
Region: Alaska
Strongest shaking: II, weak shaking
Tsunami flag: No
Status: Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated: II, weak shaking
Peak ground acceleration: 0.2% of gravity
Peak ground velocity: 0.1 cm/s
Map: Automatic

USGS ShakeMap: estimated shaking intensity around the epicenter — Estimated shaking intensity. Map: USGS ShakeMap.

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 8.6 km horizontally, 5.0 km in depth
Magnitude uncertainty: ±0.03
Depth from: From location
Station coverage gap: 51°
Stations used: 133

Nearby

Within 100 km, magnitude 1.5 and up: 42 in the 60 days after this one and 12 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000tara (also filed as aka2026niujfu). Read Thu, Oct 1, 2026, 12:52 AM UTC.