Alaska earthquakes

M2.2 earthquake 116 km W of Adak, Alaska

A magnitude 2.2 earthquake struck 116 km W of Adak, Alaska on Mon, Apr 25, 2016, 12:42 AM HADT (09:42 UTC), 76 km (47 mi) below the surface.

A larger quake followed: M5.1 39 km SW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
2.2 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2016-04-25 09:42:58 UTC
Depth
75.7 km (47.0 mi), intermediate-depth
Epicenter
51.756° N, 178.310° 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
20

Nearby

Within 100 km, magnitude 1.5 and up: 168 in the 60 days after this one and 77 in the 30 days before it.

After

The first 60 of 168.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0165bzyabh (also filed as ak13493721). Read Sun, Oct 4, 2026, 4:46 PM UTC.