Alaska earthquakes

M2.3 earthquake 50 km S of Adak, Alaska

A magnitude 2.3 earthquake struck 50 km S of Adak, Alaska on Sat, Nov 17, 2018, 2:51 AM HAST (12:51 UTC), 26 km (16 mi) below the surface.

A larger quake followed: M4.5 62 km ESE of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
2.3 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2018-11-17 12:51:37 UTC
Depth
25.5 km (15.8 mi), shallow
Epicenter
51.420° N, 176.645° 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
19

Nearby

Within 100 km, magnitude 1.5 and up: 133 in the 60 days after this one and 85 in the 30 days before it.

After

The first 60 of 133.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak018er2ym78 (also filed as ak20371625). Read Thu, Oct 1, 2026, 5:46 PM UTC.