Alaska earthquakes

M2.1 earthquake 54 km E of Atka, Alaska

A magnitude 2.1 earthquake struck 54 km E of Atka, Alaska on Thu, Apr 22, 2021, 11:15 PM HADT (08:15 UTC), 88 km (55 mi) below the surface.

A larger quake followed: M5.1 75 km SE of Atka, Alaska. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.1 (ml), micro
Local time
UTC
2021-04-23 08:15:38 UTC
Depth
87.8 km (54.6 mi), intermediate-depth
Epicenter
52.156° N, 173.413° 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
20

Nearby

Within 100 km, magnitude 1.5 and up: 25 in the 60 days after this one and 39 in the 30 days before it.

After

  1. 2.120 km ESE of Atka, Alaska · 1986 days ago · 146 km deep · 34 km away
  2. 3.168 km SE of Atka, Alaska · 1986 days ago · 35 km deep · 36 km away
  3. 1.978 km SE of Atka, Alaska · 1984 days ago · 12 km deep · 50 km away
  4. 2.968 km E of Atka, Alaska · 1984 days ago · 223 km deep · 22 km away
  5. 1.5Andreanof Islands, Aleutian Islands, Alaska · 1982 days ago · 6 km deep · 69 km away
  6. 1.943 km SSW of Atka, Alaska · 1982 days ago · 44 km deep · 75 km away
  7. 2.194 km SE of Atka, Alaska · 1980 days ago · 18 km deep · 66 km away
  8. 2.363 km S of Atka, Alaska · 1980 days ago · 21 km deep · 80 km away
  9. 3.345 km SSE of Atka, Alaska · 1977 days ago · 56 km deep · 46 km away
  10. 2.684 km SSE of Atka, Alaska · 1966 days ago · 35 km deep · 69 km away
  11. 2.955 km SW of Atka, Alaska · 1965 days ago · 51 km deep · 98 km away
  12. 3.955 km SSE of Atka, Alaska · 1957 days ago · 35 km deep · 57 km away
  13. 4.295 km SE of Atka, Alaska · 1957 days ago · 16 km deep · 68 km away
  14. 4.281 km SE of Atka, Alaska · 1957 days ago · 41 km deep · 52 km away
  15. 5.175 km SE of Atka, Alaska · 1957 days ago · 21 km deep · 46 km away
  16. 3.879 km SE of Atka, Alaska · 1957 days ago · 45 km deep · 53 km away
  17. 4.198 km SE of Atka, Alaska · 1957 days ago · 45 km deep · 73 km away
  18. 4.099 km SE of Atka, Alaska · 1957 days ago · 35 km deep · 72 km away
  19. 4.245 km E of Atka, Alaska · 1949 days ago · 148 km deep · 10 km away
  20. 2.042 km SW of Atka, Alaska · 1948 days ago · 55 km deep · 87 km away
  21. 3.3107 km SSE of Atka, Alaska · 1945 days ago · 33 km deep · 86 km away
  22. 2.9Andreanof Islands, Aleutian Islands, Alaska · 1937 days ago · 35 km deep · 75 km away
  23. 2.7Andreanof Islands, Aleutian Islands, Alaska · 1936 days ago · 35 km deep · 54 km away
  24. 4.189 km SSE of Atka, Alaska · 1936 days ago · 30 km deep · 72 km away
  25. 2.915 km NNE of Atka, Alaska · 1936 days ago · 178 km deep · 53 km away

Before

  1. 2.237 km ESE of Atka, Alaska · 1986 days ago · 153 km deep · 19 km away
  2. 3.0Andreanof Islands, Aleutian Islands, Alaska · 1987 days ago · 192 km deep · 75 km away
  3. 2.220 km E of Atka, Alaska · 1987 days ago · 115 km deep · 34 km away
  4. 2.228 km SE of Atka, Alaska · 1990 days ago · 70 km deep · 41 km away
  5. 2.933 km S of Atka, Alaska · 1990 days ago · 3 km deep · 62 km away
  6. 3.1153 km E of Atka, Alaska · 1991 days ago · 20 km deep · 100 km away
  7. 1.861 km E of Atka, Alaska · 1991 days ago · 13 km deep · 7 km away
  8. 1.943 km SE of Atka, Alaska · 1991 days ago · 17 km deep · 34 km away
  9. 1.815 km SSW of Atka, Alaska · 1991 days ago · 74 km deep · 61 km away
  10. 2.9149 km E of Atka, Alaska · 1991 days ago · 35 km deep · 95 km away
  11. 2.5120 km E of Atka, Alaska · 1992 days ago · 102 km deep · 67 km away
  12. 1.863 km E of Atka, Alaska · 1992 days ago · 4 km deep · 18 km away
  13. 3.646 km N of Atka, Alaska · 1992 days ago · 192 km deep · 76 km away
  14. 1.628 km SE of Atka, Alaska · 1992 days ago · 11 km deep · 42 km away
  15. 1.978 km SSE of Atka, Alaska · 1992 days ago · 17 km deep · 69 km away
  16. 1.654 km E of Atka, Alaska · 1993 days ago · 13 km deep · 2 km away
  17. 3.149 km SW of Atka, Alaska · 1993 days ago · 10 km deep · 97 km away
  18. 2.047 km ESE of Atka, Alaska · 1993 days ago · 65 km deep · 12 km away
  19. 3.629 km NE of Atka, AK · 1996 days ago · 174 km deep · 37 km away
  20. 3.467 km ENE of Atka, Alaska · 1999 days ago · 10 km deep · 24 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021570kzcp. Read Wed, Sep 30, 2026, 9:58 AM UTC.