Alaska earthquakes

M4.7 earthquake 79 km SE of Adak, Alaska

A magnitude 4.7 earthquake struck 79 km SE of Adak, Alaska on Sun, Aug 26, 1973, 3:58 PM GMT-10 (01:58 UTC), 40 km (25 mi) below the surface.

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The earthquake

Magnitude
4.7 (mb), light
Local time
UTC
1973-08-27 01:58:08 UTC
Depth
40.0 km (24.9 mi), shallow
Epicenter
51.307° N, 175.942° 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
21

Nearby

Within 100 km, magnitude 1.7 and up: 0 in the 60 days after this one and 7 in the 30 days before it.

Before

  1. 4.954 km S of Adak, Alaska · 19394 days ago · 51 km deep · 47 km away
  2. 4.661 km S of Adak, Alaska · 19395 days ago · 53 km deep · 49 km away
  3. 4.161 km SSE of Adak, Alaska · 19395 days ago · 47 km deep · 36 km away
  4. 4.037 km SSE of Adak, Alaska · 19395 days ago · 55 km deep · 43 km away
  5. 5.647 km S of Adak, Alaska · 19395 days ago · 62 km deep · 50 km away
  6. 5.263 km S of Adak, Alaska · 19395 days ago · 48 km deep · 49 km away
  7. 5.865 km S of Adak, Alaska · 19395 days ago · 47 km deep · 49 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000037x. Read Tue, Sep 22, 2026, 7:57 AM UTC.