Alaska earthquakes

M2.3 earthquake 253 km W of Adak, Alaska

A magnitude 2.3 earthquake struck 253 km W of Adak, Alaska on Thu, May 31, 2018, 5:30 PM GMT+12 (05:30 UTC), 73 km (45 mi) below the surface.

A larger quake followed: M4.2 211 km WSW 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: Thu, May 31, 2018, 5:30 PM GMT+12
UTC: 2018-05-31 05:30:51 UTC
Depth: 72.9 km (45.3 mi), intermediate-depth
Epicenter: 51.630° N, 179.716° E
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: 138 in the 60 days after this one and 37 in the 30 days before it.

After

The first 60 of 138.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0186xtb41p (also filed as ak19694653). Read Sat, Oct 3, 2026, 12:06 PM UTC.