Alaska earthquakes

M5.4 earthquake 27 km WSW of Adak, Alaska

A magnitude 5.4 earthquake struck 27 km WSW of Adak, Alaska on Fri, Jan 12, 1973, 2:00 PM GMT-11 (01:00 UTC), 61 km (38 mi) below the surface.

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The earthquake

Magnitude
5.4 (mb), moderate
Local time
UTC
1973-01-13 01:00:37 UTC
Depth
61.0 km (37.9 mi), shallow
Epicenter
51.768° N, 176.998° 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
70

Nearby

Within 100 km, magnitude 2.4 and up: 2 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 4.728 km WSW of Adak, Alaska · 19610 days ago · 58 km deep · 3 km away
  2. 3.972 km NE of Adak, Alaska · 19606 days ago · 123 km deep · 99 km away

Before

  1. 5.1121 km WSW of Adak, Alaska · 19614 days ago · 52 km deep · 93 km away
  2. 5.535 km SE of Adak, Alaska · 19628 days ago · 52 km deep · 50 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000004b (also filed as iscgem764837, iscgemsup764837). Read Tue, Sep 22, 2026, 12:30 PM UTC.