Alaska earthquakes

M2.4 earthquake 221 km WSW of Adak, Alaska

A magnitude 2.4 earthquake struck 221 km WSW of Adak, Alaska on Sat, Sep 3, 2016, 11:09 PM HADT (08:09 UTC), 51 km (31 mi) below the surface.

A larger quake followed: M4.2 250 km W of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
2.4 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2016-09-04 08:09:30 UTC
Depth
50.5 km (31.4 mi), shallow
Epicenter
51.379° N, 179.728° 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
17

Nearby

Within 100 km, magnitude 1.5 and up: 75 in the 60 days after this one and 70 in the 30 days before it.

After

The first 60 of 75.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak016bea3j4g (also filed as ak13903690). Read Sun, Oct 4, 2026, 8:46 AM UTC.