Alaska earthquakes

M2.3 earthquake 200 km W of Adak, Alaska

A magnitude 2.3 earthquake struck 200 km W of Adak, Alaska on Mon, Jul 4, 2016, 8:32 AM HADT (17:32 UTC), 164 km (102 mi) below the surface.

A larger quake followed: M5.6 269 km W of Adak, Alaska. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude: 2.3 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Mon, Jul 4, 2016, 8:32 AM HADT
UTC: 2016-07-04 17:32:35 UTC
Depth: 163.6 km (101.7 mi), intermediate-depth
Epicenter: 52.029° N, 179.547° 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: 14

Nearby

Within 100 km, magnitude 1.5 and up: 106 in the 60 days after this one and 39 in the 30 days before it.

After

The first 60 of 106.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0168jw9uru (also filed as ak13744473). Read Sun, Oct 4, 2026, 12:31 PM UTC.