Alaska earthquakes

M2.3 earthquake 214 km W of Adak, Alaska

A magnitude 2.3 earthquake struck 214 km W of Adak, Alaska on Wed, Jul 18, 2018, 10:59 AM HADT (19:59 UTC), 169 km (105 mi) below the surface.

A larger quake followed: M4.1 248 km WSW 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
2018-07-18 19:59:33 UTC
Depth
169.2 km (105.1 mi), intermediate-depth
Epicenter
52.062° N, 179.733° 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: 98 in the 60 days after this one and 56 in the 30 days before it.

After

The first 60 of 98.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak01895fm0m8 (also filed as ak19895682). Read Sat, Oct 3, 2026, 3:36 PM UTC.