Alaska earthquakes

M2.5 earthquake 71 km ENE of Nikolski, Alaska

A magnitude 2.5 earthquake struck 71 km ENE of Nikolski, Alaska on Tue, Nov 27, 2018, 7:03 PM AKST (04:03 UTC), 77 km (48 mi) below the surface.

A larger quake followed: M4.0 78 km S 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: Tue, Nov 27, 2018, 7:03 PM AKST
UTC: 2018-11-28 04:03:56 UTC
Depth: 76.5 km (47.6 mi), intermediate-depth
Epicenter: 53.200° N, 167.886° 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 10.1 km horizontally, 14.6 km in depth
Depth from: From location
Station coverage gap: 195°, poorly surrounded by stations
Stations used: 32

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast117 kmSW

Nearby

Within 100 km, magnitude 1.5 and up: 41 in the 60 days after this one and 23 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 us2000it1g (also filed as ak20411663, ak018f94tpun). Read Wed, Sep 30, 2026, 4:13 PM UTC.