Alaska earthquakes

M1.8 earthquake 59 km SSW of Adak, Alaska

A magnitude 1.8 earthquake struck 59 km SSW of Adak, Alaska on Tue, Jun 28, 2016, 3:36 PM HADT (00:36 UTC), 31 km (19 mi) below the surface.

A larger quake followed: M5.3 130 km WSW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 1.8 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Tue, Jun 28, 2016, 3:36 PM HADT
UTC: 2016-06-29 00:36:01 UTC
Depth: 31.2 km (19.4 mi), shallow
Epicenter: 51.424° N, 177.112° 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: 19

Nearby

Within 100 km, magnitude 1.5 and up: 177 in the 60 days after this one and 99 in the 30 days before it.

After

The first 60 of 177.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0168bchj9u (also filed as ak13731994). Read Mon, Oct 5, 2026, 12:07 PM UTC.