Alaska earthquakes

M1.9 earthquake 131 km W of Adak, Alaska

A magnitude 1.9 earthquake struck 131 km W of Adak, Alaska on Sun, Apr 30, 2017, 12:07 PM HADT (21:07 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M6.2 135 km W of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 1.9 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Sun, Apr 30, 2017, 12:07 PM HADT
UTC: 2017-04-30 21:07:18 UTC
Depth: 13.2 km (8.2 mi), shallow
Epicenter: 51.724° N, 178.526° 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: 13

Nearby

Within 100 km, magnitude 1.5 and up: at least 202 in the 60 days after this one and 60 in the 30 days before it.

After

The first 60 of at least 202.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0175it1ad5 (also filed as ak15847247). Read Fri, Oct 2, 2026, 10:16 PM UTC.