Alaska earthquakes

M1.6 earthquake 38 km NE of Adak, Alaska

A magnitude 1.6 earthquake struck 38 km NE of Adak, Alaska on Tue, May 25, 2021, 7:48 PM HADT (04:48 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M5.0 49 km ESE of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
1.6 (ml), micro
Local time
UTC
2021-05-26 04:48:50 UTC
Depth
8.5 km (5.3 mi), shallow
Epicenter
52.112° N, 176.234° 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.

Location uncertainty
About 1.2 km horizontally, 1.4 km in depth
Magnitude uncertainty
±0.22
Depth from
From location
Station coverage gap
304°, poorly surrounded by stations
Stations used
5

Nearby

Within 100 km, magnitude 1.5 and up: 97 in the 60 days after this one and 29 in the 30 days before it.

After

  1. 2.984 km E of Adak, Alaska · 1947 days ago · 238 km deep · 60 km away
  2. 2.744 km E of Adak, Alaska · 1944 days ago · 69 km deep · 36 km away
  3. 4.246 km SW of Adak, Alaska · 1943 days ago · 48 km deep · 84 km away
  4. 1.750 km W of Adak, Alaska · 1942 days ago · 71 km deep · 85 km away
  5. 2.039 km ESE of Adak, Alaska · 1942 days ago · 62 km deep · 37 km away
  6. 2.754 km WSW of Adak, Alaska · 1931 days ago · 96 km deep · 90 km away
  7. 2.158 km W of Adak, Alaska · 1931 days ago · 88 km deep · 88 km away
  8. 2.873 km ESE of Adak, Alaska · 1931 days ago · 70 km deep · 61 km away
  9. 1.640 km ENE of Adak, Alaska · 1930 days ago · 154 km deep · 9 km away
  10. 1.754 km SSE of Adak, Alaska · 1924 days ago · 27 km deep · 81 km away
  11. 1.694 km ESE of Adak, Alaska · 1924 days ago · 36 km deep · 83 km away
  12. 1.642 km ENE of Adak, Alaska · 1919 days ago · 3 km deep · 10 km away
  13. 1.652 km SSW of Adak, Alaska · 1914 days ago · 35 km deep · 90 km away
  14. 1.862 km E of Adak, Alaska · 1914 days ago · 18 km deep · 38 km away
  15. 1.644 km ESE of Adak, Alaska · 1914 days ago · 68 km deep · 41 km away
  16. 2.075 km SE of Adak, Alaska · 1914 days ago · 26 km deep · 83 km away
  17. 1.524 km E of Adak, Alaska · 1914 days ago · 72 km deep · 29 km away
  18. 2.084 km ESE of Adak, Alaska · 1911 days ago · 43 km deep · 79 km away
  19. 3.2103 km ESE of Adak, Alaska · 1911 days ago · 35 km deep · 95 km away
  20. 2.029 km NE of Adak, Alaska · 1910 days ago · 125 km deep · 10 km away
  21. 1.539 km SSE of Adak, Alaska · 1910 days ago · 35 km deep · 62 km away
  22. 3.760 km WSW of Atka, Alaska · 1910 days ago · 76 km deep · 87 km away
  23. 1.648 km WSW of Adak, Alaska · 1909 days ago · 70 km deep · 85 km away
  24. 1.658 km W of Adak, Alaska · 1909 days ago · 115 km deep · 90 km away
  25. 1.862 km SE of Adak, Alaska · 1909 days ago · 23 km deep · 71 km away
  26. 2.639 km ENE of Adak, Alaska · 1909 days ago · 96 km deep · 21 km away
  27. 3.446 km NNE of Adak, Alaska · 1909 days ago · 198 km deep · 24 km away
  28. 1.847 km SW of Adak, Alaska · 1908 days ago · 64 km deep · 85 km away
  29. 1.757 km SE of Adak, Alaska · 1908 days ago · 13 km deep · 74 km away
  30. 3.638 km SW of Adak, Alaska · 1907 days ago · 73 km deep · 76 km away
  31. 1.836 km ESE of Adak, Alaska · 1907 days ago · 61 km deep · 45 km away
  32. 1.667 km W of Adak, Alaska · 1907 days ago · 13 km deep · 97 km away
  33. 1.849 km S of Adak, Alaska · 1907 days ago · 26 km deep · 80 km away
  34. 1.758 km SE of Adak, Alaska · 1907 days ago · 17 km deep · 71 km away
  35. 1.864 km WSW of Adak, Alaska · 1907 days ago · 10 km deep · 99 km away
  36. 3.753 km SSW of Adak, Alaska · 1906 days ago · 49 km deep · 90 km away
  37. 2.332 km SE of Adak, Alaska · 1906 days ago · 50 km deep · 52 km away
  38. 3.041 km S of Adak, Alaska · 1904 days ago · 36 km deep · 74 km away
  39. 2.051 km S of Adak, Alaska · 1904 days ago · 21 km deep · 79 km away
  40. 2.282 km SE of Adak, Alaska · 1903 days ago · 26 km deep · 83 km away
  41. 1.639 km SSW of Adak, Alaska · 1903 days ago · 32 km deep · 75 km away
  42. 4.689 km SW of Atka, Alaska · 1903 days ago · 52 km deep · 84 km away
  43. 1.659 km SSW of Adak, Alaska · 1903 days ago · 26 km deep · 95 km away
  44. 1.648 km S of Adak, Alaska · 1903 days ago · 13 km deep · 77 km away
  45. 2.191 km SW of Atka, Alaska · 1903 days ago · 26 km deep · 89 km away
  46. 1.5Andreanof Islands, Aleutian Islands, Alaska · 1902 days ago · 16 km deep · 91 km away
  47. 1.569 km SE of Adak, Alaska · 1902 days ago · 22 km deep · 73 km away
  48. 1.560 km S of Adak, Alaska · 1902 days ago · 29 km deep · 94 km away
  49. 2.350 km NE of Adak, Alaska · 1902 days ago · 201 km deep · 12 km away
  50. 1.782 km ESE of Adak, Alaska · 1902 days ago · 26 km deep · 79 km away
  51. 1.580 km ESE of Adak, Alaska · 1902 days ago · 25 km deep · 77 km away
  52. 5.049 km ESE of Adak, Alaska · 1901 days ago · 58 km deep · 43 km away · felt by 3
  53. 2.955 km ESE of Adak, Alaska · 1901 days ago · 44 km deep · 53 km away
  54. 2.462 km ESE of Adak, Alaska · 1901 days ago · 32 km deep · 63 km away
  55. 2.653 km ESE of Adak, Alaska · 1901 days ago · 43 km deep · 51 km away
  56. 3.059 km ESE of Adak, Alaska · 1900 days ago · 38 km deep · 60 km away
  57. 2.857 km ESE of Adak, Alaska · 1900 days ago · 38 km deep · 57 km away
  58. 1.858 km SSE of Adak, Alaska · 1900 days ago · 18 km deep · 78 km away
  59. 1.544 km SSE of Adak, Alaska · 1900 days ago · 32 km deep · 68 km away
  60. 2.075 km ENE of Adak, Alaska · 1899 days ago · 94 km deep · 43 km away

The first 60 of 97.

Before

  1. 1.637 km NE of Adak, Alaska · 1947 days ago · 10 km deep · 1 km away
  2. 1.539 km NE of Adak, Alaska · 1947 days ago · 10 km deep · 2 km away
  3. 1.957 km SSE of Adak, Alaska · 1957 days ago · 26 km deep · 77 km away
  4. 2.579 km WSW of Atka, Alaska · 1958 days ago · 57 km deep · 80 km away
  5. 3.831 km SSE of Adak, Alaska · 1959 days ago · 50 km deep · 55 km away
  6. 1.652 km SW of Adak, Alaska · 1959 days ago · 45 km deep · 90 km away
  7. 1.5Andreanof Islands, Aleutian Islands, Alaska · 1959 days ago · 29 km deep · 60 km away
  8. 3.199 km ESE of Adak, Alaska · 1960 days ago · 35 km deep · 89 km away
  9. 1.963 km W of Adak, Alaska · 1960 days ago · 103 km deep · 96 km away
  10. 1.934 km ENE of Adak, Alaska · 1960 days ago · 132 km deep · 19 km away
  11. 1.599 km SW of Atka, Alaska · 1961 days ago · 26 km deep · 96 km away
  12. 1.956 km W of Adak, Alaska · 1966 days ago · 11 km deep · 90 km away
  13. 2.057 km W of Adak, Alaska · 1966 days ago · -2 km deep · 90 km away
  14. 2.057 km W of Adak, Alaska · 1967 days ago · -2 km deep · 90 km away
  15. 1.857 km W of Adak, Alaska · 1968 days ago · -2 km deep · 90 km away
  16. 1.849 km SE of Adak, Alaska · 1969 days ago · 30 km deep · 66 km away
  17. 3.6100 km SW of Atka, Alaska · 1969 days ago · 35 km deep · 95 km away
  18. 3.856 km NE of Adak, Alaska · 1973 days ago · 155 km deep · 20 km away
  19. 1.727 km ESE of Adak, Alaska · 1974 days ago · 98 km deep · 38 km away
  20. 1.643 km S of Adak, Alaska · 1974 days ago · 44 km deep · 73 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event av91251796. Read Thu, Sep 24, 2026, 11:41 AM UTC.