Alaska earthquakes

M2.2 earthquake 170 km S of Adak, Alaska

A magnitude 2.2 earthquake struck 170 km S of Adak, Alaska on Mon, May 31, 2021, 5:52 AM HADT (14:52 UTC), 12 km (8 mi) below the surface.

A larger quake followed: M4.1 77 km S of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
2.2 (ml), micro
Local time
UTC
2021-05-31 14:52:33 UTC
Depth
12.3 km (7.6 mi), shallow
Epicenter
50.356° N, 176.255° 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
23

Nearby

Within 100 km, magnitude 1.5 and up: 23 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 2.5188 km S of Adak, Alaska · 1933 days ago · 10 km deep · 33 km away
  2. 3.085 km SSE of Adak, Alaska · 1911 days ago · 10 km deep · 97 km away
  3. 2.1110 km SE of Adak, Alaska · 1905 days ago · 13 km deep · 88 km away
  4. 1.6Andreanof Islands, Aleutian Islands, Alaska · 1903 days ago · 33 km deep · 89 km away
  5. 1.6183 km S of Adak, Alaska · 1902 days ago · 5 km deep · 38 km away
  6. 2.6104 km SE of Adak, Alaska · 1896 days ago · 2 km deep · 98 km away
  7. 3.694 km SSE of Adak, Alaska · 1896 days ago · 25 km deep · 77 km away
  8. 1.679 km SSE of Adak, Alaska · 1895 days ago · 18 km deep · 93 km away
  9. 1.9170 km SSW of Adak, Alaska · 1892 days ago · 26 km deep · 68 km away
  10. 4.074 km S of Adak, Alaska · 1892 days ago · 35 km deep · 97 km away
  11. 1.986 km S of Adak, Alaska · 1892 days ago · 26 km deep · 85 km away
  12. 4.177 km S of Adak, Alaska · 1892 days ago · 29 km deep · 94 km away
  13. 1.585 km S of Adak, Alaska · 1891 days ago · 17 km deep · 86 km away
  14. 2.776 km S of Adak, Alaska · 1891 days ago · 20 km deep · 95 km away
  15. 1.773 km SSE of Adak, Alaska · 1891 days ago · 25 km deep · 99 km away
  16. 2.172 km S of Adak, Alaska · 1891 days ago · 26 km deep · 99 km away
  17. 4.087 km S of Adak, Alaska · 1890 days ago · 10 km deep · 84 km away
  18. 3.889 km S of Adak, Alaska · 1890 days ago · 16 km deep · 82 km away
  19. 3.892 km S of Adak, Alaska · 1889 days ago · 14 km deep · 79 km away
  20. 3.988 km S of Adak, Alaska · 1889 days ago · 23 km deep · 83 km away
  21. 1.587 km S of Adak, Alaska · 1889 days ago · 39 km deep · 84 km away
  22. 1.8164 km S of Adak, Alaska · 1889 days ago · 17 km deep · 42 km away
  23. 1.9100 km SSE of Adak, Alaska · 1887 days ago · 14 km deep · 71 km away

Before

  1. 4.1101 km S of Adak, Alaska · 1953 days ago · 10 km deep · 71 km away
  2. 3.7174 km SE of Adak, Alaska · 1953 days ago · 10 km deep · 93 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0216xysq6a. Read Mon, Sep 28, 2026, 5:56 AM UTC.