Alaska earthquakes

M1.5 earthquake 15 km W of Susitna, Alaska

A magnitude 1.5 earthquake struck 15 km W of Susitna, Alaska on Tue, Feb 27, 2018, 3:30 AM AKST (12:30 UTC), 66 km (41 mi) below the surface.

A larger quake followed: M4.1 3 km NNE of Big Lake, Alaska. This one was a foreshock.

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Map

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

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The earthquake

Magnitude: 1.5 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Tue, Feb 27, 2018, 3:30 AM AKST
UTC: 2018-02-27 12:30:23 UTC
Depth: 65.9 km (40.9 mi), shallow
Epicenter: 61.530° N, 150.808° 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: 30

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 201 in the 60 days after this one and 122 in the 30 days before it.

After

The first 60 of at least 201.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0182o4ht6w (also filed as ak18560482). Read Sat, Oct 3, 2026, 11:24 AM UTC.