Alaska earthquakes

M2.9 earthquake 28 km N of Sutton-Alpine, Alaska

A magnitude 2.9 earthquake struck 28 km N of Sutton-Alpine, Alaska on Thu, Mar 29, 2018, 12:00 PM AKDT (20:00 UTC), 28 km (17 mi) below the surface.

A larger quake followed: M4.1 3 km NNE of Big Lake, 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
2.9 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2018-03-29 20:00:45 UTC
Depth
27.5 km (17.1 mi), shallow
Epicenter
62.033° N, 148.849° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
2.9ML, local (Richter)Alaska Earthquake CenterPreferred · Preliminary
2.9ML, local (Richter)USGS National Earthquake Information CenterReviewed

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
172

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 133 in the 60 days after this one and 70 in the 30 days before it.

After

The first 60 of 133.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak01841v7b2g (also filed as ak18822670, us1000dazl). Read Sat, Oct 3, 2026, 8:18 AM UTC.