Alaska earthquakes

M4.6 earthquake 16 km E of Unalaska, Alaska

A magnitude 4.6 earthquake struck 16 km E of Unalaska, Alaska on Thu, Nov 15, 2018, 9:13 AM AKST (18:13 UTC), 84 km (52 mi) below the surface.

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: 4.6 (mb), light
Local time: Thu, Nov 15, 2018, 9:13 AM AKST
UTC: 2018-11-15 18:13:25 UTC
Depth: 84.0 km (52.2 mi), intermediate-depth
Epicenter: 53.861° N, 166.283° W
Region: Alaska
Felt reports: 3
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

3 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 4.0 km horizontally, 4.1 km in depth
Magnitude uncertainty: ±0.04
Depth from: From location
Station coverage gap: 144°
Stations used: 95

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast16 kmE

Nearby

Within 100 km, magnitude 1.6 and up: 67 in the 60 days after this one and 41 in the 30 days before it.

After

The first 60 of 67.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000hs81 (also filed as ak20362290, ak018env8cpq). Read Wed, Sep 30, 2026, 1:55 PM UTC.