Alaska earthquakes

M2.5 earthquake 60 km SSE of Unalaska, Alaska

A magnitude 2.5 earthquake struck 60 km SSE of Unalaska, Alaska on Mon, Apr 1, 2019, 11:56 PM AKDT (07:56 UTC), 45 km (28 mi) below the surface.

A larger quake followed: M4.6 127 km SSW of Unalaska, 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: 2.5 (ml), micro
Local time: Mon, Apr 1, 2019, 11:56 PM AKDT
UTC: 2019-04-02 07:56:31 UTC
Depth: 45.2 km (28.1 mi), shallow
Epicenter: 53.388° N, 166.113° 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 7.0 km horizontally, 22.8 km in depth
Depth from: From location
Station coverage gap: 214°, poorly surrounded by stations
Stations used: 16

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast61 kmSSE

Nearby

Within 100 km, magnitude 1.5 and up: 53 in the 60 days after this one and 35 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70003jkp (also filed as ak019489y16a). Read Wed, Sep 30, 2026, 9:05 AM UTC.