Alaska earthquakes

M2.9 earthquake 48 km W of Nikolski, Alaska

A magnitude 2.9 earthquake struck 48 km W of Nikolski, Alaska on Thu, Aug 30, 2018, 7:15 PM AKDT (03:15 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M4.8 72 km SSE of Nikolski, 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: 2.9 (ml), micro
Local time: Thu, Aug 30, 2018, 7:15 PM AKDT
UTC: 2018-08-31 03:15:06 UTC
Depth: 14.8 km (9.2 mi), shallow
Epicenter: 52.875° N, 169.576° 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 5.8 km horizontally, 10.1 km in depth
Depth from: From location
Station coverage gap: 158°
Stations used: 16

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast230 kmWSW

Nearby

Within 100 km, magnitude 1.5 and up: 94 in the 60 days after this one and 38 in the 30 days before it.

After

The first 60 of 94.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000hfze (also filed as ak20238539, ak018b5xguug, av61768086). Read Thu, Oct 1, 2026, 1:34 AM UTC.