Alaska earthquakes

M1.9 earthquake 133 km W of Adak, Alaska

A magnitude 1.9 earthquake struck 133 km W of Adak, Alaska on Sat, Apr 30, 2016, 1:24 PM HADT (22:24 UTC), 97 km (60 mi) below the surface.

A larger quake followed: M4.5 216 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: Sat, Apr 30, 2016, 1:24 PM HADT
UTC: 2016-04-30 22:24:02 UTC
Depth: 96.5 km (60.0 mi), intermediate-depth
Epicenter: 51.982° N, 178.565° 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: 155 in the 60 days after this one and 71 in the 30 days before it.

After

The first 60 of 155.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0165kh9ofd (also filed as ak13505902). Read Sun, Oct 4, 2026, 12:56 PM UTC.