Alaska earthquakes

M1.8 earthquake 84 km SSE of Igiugig, Alaska

A magnitude 1.8 earthquake struck 84 km SSE of Igiugig, Alaska on Wed, Sep 12, 2018, 4:46 PM AKDT (00:46 UTC), 147 km (91 mi) below the surface.

A larger quake followed: M2.8 74 km S of Kokhanok, Alaska. This one was a foreshock.

Naknek 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: 1.8 (ml), micro
Local time: Wed, Sep 12, 2018, 4:46 PM AKDT
UTC: 2018-09-13 00:46:37 UTC
Depth: 147.1 km (91.4 mi), intermediate-depth
Epicenter: 58.663° N, 155.200° 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: 31

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 92 in the 60 days after this one and 34 in the 30 days before it.

After

The first 60 of 92.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak018brdus83 (also filed as aacse018brdus83). Read Tue, Sep 29, 2026, 10:59 PM UTC.