Alaska earthquakes

M3.4 earthquake 219 km SSW of Adak, Alaska

A magnitude 3.4 earthquake struck 219 km SSW of Adak, Alaska on Mon, Jul 26, 2021, 9:06 AM HADT (18:06 UTC), 43 km (27 mi) below the surface.

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The earthquake

Magnitude: 3.4 (ml), minor
Local time: Mon, Jul 26, 2021, 9:06 AM HADT
UTC: 2021-07-26 18:06:06 UTC
Depth: 42.7 km (26.5 mi), shallow
Epicenter: 49.997° N, 177.614° 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 6.8 km horizontally, 10.1 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 269°, poorly surrounded by stations
Stations used: 28

Nearby

Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 4 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 us6000f96q (also filed as ak0219imzxwz). Read Fri, Sep 25, 2026, 10:51 PM UTC.