Alaska earthquakes

M1.7 earthquake 10 km NNE of Ridgeway, Alaska

A magnitude 1.7 earthquake struck 10 km NNE of Ridgeway, Alaska on Tue, Sep 25, 2018, 4:33 AM AKDT (12:33 UTC), 61 km (38 mi) below the surface.

A larger quake followed: M4.5 28 km S of Susitna, Alaska. This one was a foreshock.

Ridgeway forecast More 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), micro
Local time: Tue, Sep 25, 2018, 4:33 AM AKDT
UTC: 2018-09-25 12:33:30 UTC
Depth: 61.2 km (38.0 mi), shallow
Epicenter: 60.609° N, 150.983° 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: 41

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 75 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 ak018cbfdckd (also filed as ak20262963). Read Wed, Sep 30, 2026, 1:51 AM UTC.