Alaska earthquakes

M1.6 earthquake 17 km WSW of Dutch Harbor, Alaska

A magnitude 1.6 earthquake struck 17 km WSW of Dutch Harbor, Alaska on Tue, Jun 16, 2020, 8:39 AM AKDT (16:39 UTC), 11 km (7 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: 1.6 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Tue, Jun 16, 2020, 8:39 AM AKDT
UTC: 2020-06-16 16:39:30 UTC
Depth: 11.0 km (6.8 mi), shallow
Epicenter: 53.840° N, 166.795° W
Region: Alaska
Tsunami flag: No
Status: Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
1.6	ML, local (Richter)	Alaska Earthquake Center	Preferred · Preliminary
1.63	ML, local (Richter)	AV	Final · ±0.285 · 13 stations

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used: 23

Nearest places

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

Dutch Harbor, AlaskaPopulation 4,376. Forecast18 kmWSW

Nearby

Within 100 km, magnitude 1.5 and up: 119 in the 60 days after this one and 82 in the 30 days before it.

After

The first 60 of 119.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0207q41o0q (also filed as av62182476). Read Thu, Oct 1, 2026, 10:29 AM UTC.