Alaska earthquakes

M2.1 earthquake 21 km N of Adak, Alaska

A magnitude 2.1 earthquake struck 21 km N of Adak, Alaska on Sun, Jul 15, 2018, 4:44 AM HADT (13:44 UTC), 118 km (73 mi) below the surface.

A larger quake followed: M4.2 44 km SW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 2.1 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Sun, Jul 15, 2018, 4:44 AM HADT
UTC: 2018-07-15 13:44:11 UTC
Depth: 118.2 km (73.4 mi), intermediate-depth
Epicenter: 52.063° N, 176.621° 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: 15

Nearby

Within 100 km, magnitude 1.5 and up: 146 in the 60 days after this one and 60 in the 30 days before it.

After

The first 60 of 146.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak01890dc41t (also filed as ak19921419). Read Fri, Oct 2, 2026, 12:20 AM UTC.