Alaska earthquakes

M1.5 earthquake 42 km ENE of Adak, Alaska

A magnitude 1.5 earthquake struck 42 km ENE of Adak, Alaska on Thu, Jan 18, 2018, 4:54 PM HAST (02:54 UTC), -2 km (-1 mi) below the surface.

A larger quake followed: M5.2 22 km SSW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
1.5 (ML, local (Richter)), micro
Magnitude from
AV
Local time
UTC
2018-01-19 02:54:30 UTC
Depth
-1.8 km (-1.1 mi), shallow
Epicenter
52.079° N, 176.116° 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.

Location uncertainty
About 0.7 km horizontally, 1.8 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
137°
Stations used
8

Nearby

Within 100 km, magnitude 1.5 and up: 131 in the 60 days after this one and 64 in the 30 days before it.

After

The first 60 of 131.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event av61635006. Read Fri, Oct 2, 2026, 10:32 AM UTC.