Alaska earthquakes

M1.9 earthquake 66 km W of Tyonek, Alaska

A magnitude 1.9 earthquake struck 66 km W of Tyonek, Alaska on Thu, Oct 11, 2018, 10:20 PM AKDT (06:20 UTC), 114 km (71 mi) below the surface.

A larger quake followed: M3.6 15 km S of Point Possession, Alaska. This one was a foreshock.

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

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The earthquake

Magnitude: 1.9 (ml), micro
Local time: Thu, Oct 11, 2018, 10:20 PM AKDT
UTC: 2018-10-12 06:20:47 UTC
Depth: 114.1 km (70.9 mi), intermediate-depth
Epicenter: 61.068° N, 152.368° 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.

Stations used: 76

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 83 in the 30 days before it.

After

The first 60 of at least 199.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak018d3fuwcq (also filed as ak20278574). Read Wed, Sep 30, 2026, 7:40 PM UTC.