Alaska earthquakes

M4.1 earthquake 13 km W of Dutch Harbor, Alaska

A magnitude 4.1 earthquake struck 13 km W of Dutch Harbor, Alaska on Mon, Jun 15, 2020, 4:34 PM AKDT (00:34 UTC), 9 km (6 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: 4.1 (mb, body-wave), light
Magnitude from: USGS National Earthquake Information Center
Local time: Mon, Jun 15, 2020, 4:34 PM AKDT
UTC: 2020-06-16 00:34:14 UTC
Depth: 9.4 km (5.8 mi), shallow
Epicenter: 53.893° N, 166.752° W
Region: Alaska
Felt reports: 2
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
4.1	mb, body-wave	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.055 · 89 stations
4.1	ML, local (Richter)	Alaska Earthquake Center	Preliminary
4.12	ML, local (Richter)	AV	Final · ±0.325 · 15 stations

Did you feel it?

2 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 7.4 km horizontally, 1.5 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 70°
Stations used: 179

Nearest places

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

Dutch Harbor, AlaskaPopulation 4,376. Forecast14 kmW

Nearby

Within 100 km, magnitude 1.5 and up: 168 in the 60 days after this one and 31 in the 30 days before it.

After

The first 60 of 168.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000acjk (also filed as av62180786, ak0207puhmf1). Read Sat, Oct 3, 2026, 10:43 AM UTC.