Alaska earthquakes

M5.4 earthquake 38 km ENE of Adak, Alaska

A magnitude 5.4 earthquake struck 38 km ENE of Adak, Alaska on Thu, Aug 5, 1982, 6:53 PM GMT-10 (04:53 UTC), 64 km (40 mi) below the surface.

A larger quake followed: M5.5 48 km S of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
5.4 (mb), moderate
Local time
UTC
1982-08-06 04:53:58 UTC
Depth
64.0 km (39.8 mi), shallow
Epicenter
51.946° N, 176.085° 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 2.4 and up: 4 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 4.837 km E of Adak, Alaska · 16116 days ago · 68 km deep · 11 km away
  2. 4.847 km E of Adak, AK · 16115 days ago · 67 km deep · 17 km away
  3. 5.1Andreanof Islands, Aleutian Islands, Alaska · 16102 days ago · 59 km deep · 58 km away
  4. 5.548 km S of Adak, Alaska · 16059 days ago · 38 km deep · 68 km away

Before

  1. 4.550 km SE of Adak, Alaska · 16144 days ago · 62 km deep · 38 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001nvk (also filed as gcmtb080682a, ushis3756, gcmt19820806045358, iscgem593226). Read Tue, Sep 22, 2026, 4:36 AM UTC.