Alaska earthquakes

M2.7 earthquake 244 km SE of Chiniak, Alaska

A magnitude 2.7 earthquake struck 244 km SE of Chiniak, Alaska on Wed, Oct 31, 2018, 1:22 PM AKDT (21:22 UTC), 20 km (13 mi) below the surface.

A larger quake followed: M3.2 269 km SE of Chiniak, Alaska. This one was a foreshock.

Kodiak forecast More in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude: 2.7 (ml), micro
Local time: Wed, Oct 31, 2018, 1:22 PM AKDT
UTC: 2018-10-31 21:22:25 UTC
Depth: 20.4 km (12.7 mi), shallow
Epicenter: 56.120° N, 149.341° 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, 11.6 km in depth
Magnitude uncertainty: ±0.07
Depth from: From location
Station coverage gap: 249°, poorly surrounded by stations
Stations used: 32

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 179 in the 60 days after this one and 20 in the 30 days before it.

After

The first 60 of 179.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000hq3s (also filed as ak018dz40dt1, ak20340538, aacse018dz40dt1). Read Tue, Sep 22, 2026, 7:44 AM UTC.