Alaska earthquakes

M1.7 earthquake 27 km ESE of Adak, Alaska

A magnitude 1.7 earthquake struck 27 km ESE of Adak, Alaska on Thu, Apr 29, 2021, 11:00 AM HADT (20:00 UTC), 98 km (61 mi) below the surface.

A larger quake followed: M3.8 56 km NE of Adak, 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
1.7 (ml), micro
Local time
UTC
2021-04-29 20:00:34 UTC
Depth
97.9 km (60.8 mi), intermediate-depth
Epicenter
51.772° N, 176.275° 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
14

Nearby

Within 100 km, magnitude 1.5 and up: 46 in the 60 days after this one and 94 in the 30 days before it.

After

  1. 3.856 km NE of Adak, Alaska · 1973 days ago · 155 km deep · 58 km away
  2. 3.6100 km SW of Atka, Alaska · 1969 days ago · 35 km deep · 78 km away
  3. 1.767 km WSW of Adak, Alaska · 1969 days ago · 72 km deep · 89 km away
  4. 1.849 km SE of Adak, Alaska · 1969 days ago · 30 km deep · 29 km away
  5. 1.857 km W of Adak, Alaska · 1968 days ago · -2 km deep · 82 km away
  6. 2.057 km W of Adak, Alaska · 1967 days ago · -2 km deep · 82 km away
  7. 2.057 km W of Adak, Alaska · 1966 days ago · -2 km deep · 82 km away
  8. 1.956 km W of Adak, Alaska · 1966 days ago · 11 km deep · 80 km away
  9. 1.599 km SW of Atka, Alaska · 1960 days ago · 26 km deep · 80 km away
  10. 1.934 km ENE of Adak, Alaska · 1960 days ago · 132 km deep · 22 km away
  11. 1.963 km W of Adak, Alaska · 1960 days ago · 103 km deep · 89 km away
  12. 3.199 km ESE of Adak, Alaska · 1960 days ago · 35 km deep · 72 km away
  13. 1.974 km SW of Adak, Alaska · 1959 days ago · 26 km deep · 91 km away
  14. 1.5Andreanof Islands, Aleutian Islands, Alaska · 1959 days ago · 29 km deep · 50 km away
  15. 1.652 km SW of Adak, Alaska · 1959 days ago · 45 km deep · 66 km away
  16. 3.831 km SSE of Adak, Alaska · 1958 days ago · 50 km deep · 18 km away
  17. 2.579 km WSW of Atka, Alaska · 1958 days ago · 57 km deep · 76 km away
  18. 1.957 km SSE of Adak, Alaska · 1957 days ago · 26 km deep · 39 km away
  19. 3.975 km WSW of Adak, Alaska · 1953 days ago · 68 km deep · 94 km away
  20. 4.1101 km S of Adak, Alaska · 1949 days ago · 10 km deep · 92 km away
  21. 1.539 km NE of Adak, Alaska · 1947 days ago · 10 km deep · 37 km away
  22. 1.637 km NE of Adak, Alaska · 1947 days ago · 10 km deep · 37 km away
  23. 1.638 km NE of Adak, Alaska · 1947 days ago · 8 km deep · 38 km away
  24. 2.984 km E of Adak, Alaska · 1947 days ago · 238 km deep · 62 km away
  25. 4.065 km SW of Adak, Alaska · 1946 days ago · 43 km deep · 76 km away
  26. 2.744 km E of Adak, Alaska · 1944 days ago · 69 km deep · 20 km away
  27. 4.246 km SW of Adak, Alaska · 1943 days ago · 48 km deep · 61 km away
  28. 1.750 km W of Adak, Alaska · 1942 days ago · 71 km deep · 75 km away
  29. 2.039 km ESE of Adak, Alaska · 1942 days ago · 62 km deep · 14 km away
  30. 3.482 km SW of Adak, Alaska · 1941 days ago · 45 km deep · 98 km away
  31. 2.754 km WSW of Adak, Alaska · 1931 days ago · 96 km deep · 78 km away
  32. 2.158 km W of Adak, Alaska · 1931 days ago · 88 km deep · 84 km away
  33. 2.873 km ESE of Adak, Alaska · 1931 days ago · 70 km deep · 47 km away
  34. 1.640 km ENE of Adak, Alaska · 1930 days ago · 154 km deep · 34 km away
  35. 2.193 km SW of Atka, Alaska · 1926 days ago · 24 km deep · 93 km away
  36. 1.754 km SSE of Adak, Alaska · 1924 days ago · 27 km deep · 43 km away
  37. 1.9105 km SSW of Atka, Alaska · 1923 days ago · 64 km deep · 94 km away
  38. 2.776 km W of Adak, Alaska · 1923 days ago · 110 km deep · 100 km away
  39. 1.694 km ESE of Adak, Alaska · 1923 days ago · 36 km deep · 68 km away
  40. 1.642 km ENE of Adak, Alaska · 1919 days ago · 3 km deep · 35 km away
  41. 1.652 km SSW of Adak, Alaska · 1914 days ago · 35 km deep · 63 km away
  42. 1.862 km E of Adak, Alaska · 1914 days ago · 18 km deep · 43 km away
  43. 1.769 km WSW of Adak, Alaska · 1914 days ago · 52 km deep · 89 km away
  44. 1.644 km ESE of Adak, Alaska · 1914 days ago · 68 km deep · 18 km away
  45. 2.075 km SE of Adak, Alaska · 1914 days ago · 26 km deep · 50 km away
  46. 1.524 km E of Adak, Alaska · 1914 days ago · 72 km deep · 9 km away

Before

  1. 1.643 km S of Adak, Alaska · 1974 days ago · 44 km deep · 37 km away
  2. 2.264 km SSE of Adak, Alaska · 1974 days ago · 23 km deep · 53 km away
  3. 2.145 km E of Adak, Alaska · 1974 days ago · 127 km deep · 27 km away
  4. 1.746 km W of Adak, Alaska · 1975 days ago · 80 km deep · 73 km away
  5. 2.869 km ENE of Adak, Alaska · 1975 days ago · 82 km deep · 52 km away
  6. 2.041 km SSE of Adak, Alaska · 1975 days ago · 36 km deep · 28 km away
  7. 1.849 km S of Adak, Alaska · 1975 days ago · 25 km deep · 42 km away
  8. 1.746 km ENE of Adak, Alaska · 1976 days ago · 8 km deep · 36 km away
  9. 1.860 km SE of Adak, Alaska · 1976 days ago · 26 km deep · 39 km away
  10. 2.057 km SSE of Adak, Alaska · 1978 days ago · 27 km deep · 38 km away
  11. 2.881 km SE of Adak, Alaska · 1978 days ago · 33 km deep · 54 km away
  12. 2.5Andreanof Islands, Aleutian Islands, Alaska · 1978 days ago · 35 km deep · 78 km away
  13. 1.771 km SW of Atka, Alaska · 1979 days ago · 38 km deep · 85 km away
  14. 1.950 km S of Adak, Alaska · 1979 days ago · 25 km deep · 42 km away
  15. 3.893 km ESE of Adak, Alaska · 1979 days ago · 50 km deep · 66 km away
  16. 1.766 km SW of Atka, Alaska · 1980 days ago · 63 km deep · 92 km away
  17. 2.547 km SW of Adak, Alaska · 1980 days ago · 24 km deep · 64 km away
  18. 3.168 km SW of Adak, Alaska · 1980 days ago · 34 km deep · 81 km away
  19. 2.635 km NE of Adak, Alaska · 1980 days ago · 10 km deep · 34 km away
  20. 2.232 km NE of Adak, Alaska · 1980 days ago · 9 km deep · 34 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0215h4v1ji. Read Thu, Sep 24, 2026, 8:39 AM UTC.