Alaska earthquakes

M1.6 earthquake 65 km SSW of Adak, Alaska

A magnitude 1.6 earthquake struck 65 km SSW of Adak, Alaska on Wed, Mar 28, 2018, 11:33 PM HADT (08:33 UTC), 29 km (18 mi) below the surface.

A larger quake followed: M4.8 57 km ESE of Adak, Alaska. This one was a foreshock.

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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: 1.6 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Wed, Mar 28, 2018, 11:33 PM HADT
UTC: 2018-03-29 08:33:23 UTC
Depth: 29.4 km (18.3 mi), shallow
Epicenter: 51.344° N, 177.051° 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: 16

Nearby

Within 100 km, magnitude 1.5 and up: 65 in the 60 days after this one and 80 in the 30 days before it.

After

The first 60 of 65.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak01841o94rc (also filed as ak18988147). Read Fri, Oct 2, 2026, 12:01 AM UTC.