Alaska earthquakes

M3.1 earthquake 83 km S of Unalaska, Alaska

A magnitude 3.1 earthquake struck 83 km S of Unalaska, Alaska on Sat, Jun 29, 2019, 10:33 PM AKDT (06:33 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M5.5 92 km E of Nikolski, Alaska. This one was a foreshock.

Unalaska forecast More in Alaska

Map

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

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The earthquake

Magnitude: 3.1 (ml), minor
Local time: Sat, Jun 29, 2019, 10:33 PM AKDT
UTC: 2019-06-30 06:33:01 UTC
Depth: 35.0 km (21.7 mi), shallow
Epicenter: 53.133° N, 166.723° 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 4.5 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.13
Depth from: Operator assigned
Station coverage gap: 196°, poorly surrounded by stations
Stations used: 38

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Unalaska, AlaskaPopulation 4,491. Forecast83 kmS

Nearby

Within 100 km, magnitude 1.5 and up: 107 in the 60 days after this one and 39 in the 30 days before it.

After

The first 60 of 107.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70004qz5 (also filed as ak0198bg1hsr). Read Wed, Sep 30, 2026, 10:57 PM UTC.