Alaska earthquakes

M1.8 earthquake 64 km SW of Adak, Alaska

A magnitude 1.8 earthquake struck 64 km SW of Adak, Alaska on Tue, May 10, 2016, 11:00 PM HADT (08:00 UTC), 35 km (22 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, May 10, 2016, 11:00 PM HADT
UTC: 2016-05-11 08:00:27 UTC
Depth: 34.7 km (21.6 mi), shallow
Epicenter: 51.454° N, 177.283° 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: at least 199 in the 60 days after this one and 110 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 ak01662fpc6b (also filed as ak13590590). Read Sun, Oct 4, 2026, 12:40 PM UTC.