Alaska earthquakes

M5.1 earthquake 245 km ESE of Attu Station, Alaska

A magnitude 5.1 earthquake struck 245 km ESE of Attu Station, Alaska on Sat, Feb 28, 1981, 4:36 AM GMT+12 (16:36 UTC), 49 km (30 mi) below the surface.

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The earthquake

Magnitude
5.1 (mb), moderate
Local time
UTC
1981-02-27 16:36:56 UTC
Depth
48.5 km (30.1 mi), shallow
Epicenter
51.812° N, 176.374° E
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 2.1 and up: 5 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 4.4251 km ESE of Attu Station, Alaska · 16616 days ago · 59 km deep · 8 km away
  2. 5.1218 km SE of Attu Station, Alaska · 16613 days ago · 33 km deep · 75 km away
  3. 4.6210 km SE of Attu Station, Alaska · 16613 days ago · 39 km deep · 79 km away
  4. 4.8212 km SE of Attu Station, Alaska · 16613 days ago · 29 km deep · 81 km away
  5. 4.6204 km SE of Attu Station, Alaska · 16606 days ago · 33 km deep · 87 km away

Before

  1. 4.4280 km SE of Attu Station, Alaska · 16666 days ago · 33 km deep · 46 km away
  2. 5.4Rat Islands, Aleutian Islands, Alaska · 16666 days ago · 33 km deep · 55 km away
  3. 4.9292 km SE of Attu Station, Alaska · 16669 days ago · 36 km deep · 56 km away
  4. 5.6297 km SE of Attu Station, Alaska · 16669 days ago · 23 km deep · 60 km away
  5. 4.6238 km SE of Attu Station, Alaska · 16670 days ago · 25 km deep · 58 km away
  6. 4.1239 km SE of Attu Station, Alaska · 16670 days ago · 33 km deep · 30 km away
  7. 4.6260 km SE of Attu Station, Alaska · 16671 days ago · 26 km deep · 48 km away
  8. 4.7262 km SE of Attu Station, Alaska · 16671 days ago · 33 km deep · 68 km away
  9. 5.6243 km SE of Attu Station, Alaska · 16671 days ago · 19 km deep · 34 km away
  10. 4.6Rat Islands, Aleutian Islands, Alaska · 16671 days ago · 33 km deep · 22 km away
  11. 4.2246 km SE of Attu Station, Alaska · 16671 days ago · 33 km deep · 68 km away
  12. 5.4231 km SE of Attu Station, Alaska · 16671 days ago · 21 km deep · 30 km away
  13. 7.0243 km ESE of Attu Station, Alaska · 16671 days ago · 33 km deep · 10 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001cf0. Read Tue, Sep 22, 2026, 7:01 AM UTC.