Alaska earthquakes

M1.7 earthquake 25 km NNW of Sutton-Alpine, Alaska

A magnitude 1.7 earthquake struck 25 km NNW of Sutton-Alpine, Alaska on Sat, Sep 22, 2018, 2:43 AM AKDT (10:43 UTC), 30 km (19 mi) below the surface.

A larger quake followed: M3.4 12 km S of Susitna North, Alaska. This one was a foreshock.

Sutton-Alpine forecastMore in Alaska

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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
1.7 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2018-09-22 10:43:01 UTC
Depth
30.1 km (18.7 mi), shallow
Epicenter
61.994° N, 148.902° 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
42

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 154 in the 60 days after this one and 67 in the 30 days before it.

After

The first 60 of 154.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak018c6fmitb (also filed as ak20260658). Read Thu, Oct 1, 2026, 3:22 AM UTC.