Alaska earthquakes

M5.0 earthquake 103 km SSW of Atka, Alaska

A magnitude 5.0 earthquake struck 103 km SSW of Atka, Alaska on Wed, Jul 15, 1981, 3:05 AM GMT-10 (13:05 UTC), 36 km (22 mi) below the surface.

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The earthquake

Magnitude
5.0 (mb), moderate
Local time
UTC
1981-07-15 13:05:40 UTC
Depth
35.7 km (22.2 mi), shallow
Epicenter
51.351° N, 174.822° 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.

Nearby

Within 100 km, magnitude 2.0 and up: 1 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 4.7107 km ESE of Adak, Alaska · 16455 days ago · 33 km deep · 34 km away

Before

  1. 5.0100 km SSW of Atka, Alaska · 16505 days ago · 39 km deep · 4 km away
  2. 4.988 km SSW of Atka, Alaska · 16505 days ago · 41 km deep · 15 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001eqm. Read Tue, Sep 22, 2026, 8:03 AM UTC.