Alaska earthquakes

M2.1 earthquake 88 km SSE of Adak, Alaska

A magnitude 2.1 earthquake struck 88 km SSE of Adak, Alaska on Fri, Aug 31, 2018, 10:42 AM HADT (19:42 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M4.5 47 km WSW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
2.1 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2018-08-31 19:42:37 UTC
Depth
3.3 km (2.1 mi), shallow
Epicenter
51.123° N, 176.196° 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
13

Nearby

Within 100 km, magnitude 1.5 and up: 142 in the 60 days after this one and 95 in the 30 days before it.

After

The first 60 of 142.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak018b675nf9 (also filed as ak20256814). Read Sat, Oct 3, 2026, 8:00 PM UTC.