Alaska earthquakes

M1.8 earthquake 68 km SSW of Adak, Alaska

A magnitude 1.8 earthquake struck 68 km SSW of Adak, Alaska on Wed, Oct 24, 2018, 9:08 AM HADT (18:08 UTC), 25 km (15 mi) below the surface.

A larger quake followed: M4.7 128 km SW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 1.8 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Wed, Oct 24, 2018, 9:08 AM HADT
UTC: 2018-10-24 18:08:11 UTC
Depth: 24.6 km (15.3 mi), shallow
Epicenter: 51.323° N, 177.071° 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: 11

Nearby

Within 100 km, magnitude 1.5 and up: 170 in the 60 days after this one and 122 in the 30 days before it.

After

The first 60 of 170.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak018dnhdm6e (also filed as ak20307320). Read Thu, Oct 1, 2026, 11:41 PM UTC.