Alaska earthquakes

M5.3 earthquake 195 km WSW of Adak, Alaska

A magnitude 5.3 earthquake struck 195 km WSW of Adak, Alaska on Sun, Aug 26, 1973, 11:47 AM GMT-10 (21:47 UTC), 48 km (30 mi) below the surface.

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The earthquake

Magnitude
5.3 (ms), moderate
Local time
UTC
1973-08-26 21:47:12 UTC
Depth
48.0 km (29.8 mi), shallow
Epicenter
51.245° N, 179.260° 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
54

Nearby

Within 100 km, magnitude 2.3 and up: 6 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 5.2129 km WSW of Adak, Alaska · 19384 days ago · 59 km deep · 65 km away
  2. 4.5191 km WSW of Adak, Alaska · 19384 days ago · 53 km deep · 3 km away
  3. 4.6193 km WSW of Adak, Alaska · 19384 days ago · 51 km deep · 4 km away
  4. 4.5187 km WSW of Adak, Alaska · 19384 days ago · 62 km deep · 21 km away
  5. 4.5202 km WSW of Adak, Alaska · 19384 days ago · 60 km deep · 10 km away
  6. 4.9190 km WSW of Adak, Alaska · 19372 days ago · 54 km deep · 6 km away

Before

  1. 4.6104 km WSW of Adak, Alaska · 19405 days ago · 55 km deep · 90 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000037t (also filed as iscgem757623). Read Tue, Sep 22, 2026, 7:00 AM UTC.