Alaska earthquakes

M3.6 earthquake 17 km WSW of Dutch Harbor, Alaska

A magnitude 3.6 earthquake struck 17 km WSW of Dutch Harbor, Alaska on Tue, Jun 16, 2020, 12:40 AM AKDT (08:40 UTC), 9 km (5 mi) below the surface.

A larger quake followed: M4.3 74 km S of Unalaska, Alaska. This one was a foreshock.

Dutch Harbor 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: 3.6 (ml), minor
Local time: Tue, Jun 16, 2020, 12:40 AM AKDT
UTC: 2020-06-16 08:40:23 UTC
Depth: 8.6 km (5.3 mi), shallow
Epicenter: 53.840° N, 166.788° 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, 3.5 km in depth
Magnitude uncertainty: ±0.15
Depth from: From location
Station coverage gap: 87°
Stations used: 35

Nearest places

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

Dutch Harbor, AlaskaPopulation 4,376. Forecast17 kmWSW

Nearby

Within 100 km, magnitude 1.5 and up: 136 in the 60 days after this one and 66 in the 30 days before it.

After

The first 60 of 136.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000aef1 (also filed as av62181881, ak0207pzae94). Read Tue, Sep 29, 2026, 8:12 AM UTC.