Alaska earthquakes

M1.6 earthquake 86 km SSW of Unalaska, Alaska

A magnitude 1.6 earthquake struck 86 km SSW of Unalaska, Alaska on Sun, May 30, 2021, 11:44 PM AKDT (07:44 UTC), 23 km (14 mi) below the surface.

A larger quake followed: M3.4 72 km SSW of Unalaska, Alaska. This one was a foreshock.

Unalaska forecastMore in Alaska

Map

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

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The earthquake

Magnitude
1.6 (ml), micro
Local time
UTC
2021-05-31 07:44:31 UTC
Depth
22.9 km (14.2 mi), shallow
Epicenter
53.220° N, 167.248° 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
16

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 52 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 3.472 km SSW of Unalaska, Alaska · 1941 days ago · 53 km deep · 27 km away
  2. 3.881 km S of Unalaska, Alaska · 1937 days ago · 35 km deep · 45 km away
  3. 2.042 km SSW of Unalaska, Alaska · 1934 days ago · 75 km deep · 45 km away
  4. 3.554 km NNE of Nikolski, Alaska · 1924 days ago · 109 km deep · 94 km away
  5. 1.893 km SSW of Unalaska, Alaska · 1923 days ago · 43 km deep · 10 km away
  6. 1.8121 km S of Unalaska, Alaska · 1919 days ago · 5 km deep · 62 km away
  7. 1.778 km SSW of Unalaska, Alaska · 1909 days ago · 58 km deep · 8 km away
  8. 2.097 km ENE of Nikolski, Alaska · 1909 days ago · 50 km deep · 16 km away
  9. 1.7102 km E of Nikolski, Alaska · 1909 days ago · 26 km deep · 37 km away
  10. 1.877 km S of Unalaska, Alaska · 1909 days ago · 25 km deep · 33 km away
  11. 3.5101 km SSW of Unalaska, Alaska · 1908 days ago · 35 km deep · 20 km away
  12. 4.781 km SSW of Unalaska, Alaska · 1908 days ago · 47 km deep · 24 km away · felt by 3
  13. 2.075 km SSW of Unalaska, Alaska · 1908 days ago · 33 km deep · 29 km away
  14. 2.722 km W of Dutch Harbor, Alaska · 1907 days ago · 6 km deep · 80 km away
  15. 1.954 km SE of Unalaska, Alaska · 1906 days ago · 45 km deep · 85 km away
  16. 1.581 km SW of Unalaska, Alaska · 1903 days ago · 13 km deep · 16 km away
  17. 1.695 km SW of Unalaska, Alaska · 1903 days ago · 36 km deep · 15 km away
  18. 2.075 km SW of Unalaska, Alaska · 1903 days ago · 63 km deep · 14 km away
  19. 1.746 km SE of Unalaska, Alaska · 1903 days ago · 56 km deep · 86 km away
  20. 2.2126 km S of Unalaska, Alaska · 1903 days ago · 12 km deep · 65 km away
  21. 2.9126 km S of Unalaska, Alaska · 1902 days ago · 8 km deep · 67 km away
  22. 2.832 km SE of Unalaska, Alaska · 1902 days ago · 62 km deep · 80 km away
  23. 1.876 km E of Nikolski, Alaska · 1902 days ago · 36 km deep · 45 km away
  24. 1.591 km SSW of Unalaska, Alaska · 1902 days ago · 42 km deep · 5 km away
  25. 1.679 km S of Unalaska, Alaska · 1901 days ago · 18 km deep · 38 km away
  26. 1.686 km SSE of Unalaska, Alaska · 1901 days ago · 17 km deep · 79 km away
  27. 2.181 km SSW of Unalaska, Alaska · 1900 days ago · 26 km deep · 28 km away
  28. 1.8Fox Islands, Aleutian Islands, Alaska · 1900 days ago · 44 km deep · 90 km away
  29. 1.632 km SW of Unalaska, Alaska · 1899 days ago · 80 km deep · 55 km away
  30. 4.052 km E of Nikolski, Alaska · 1899 days ago · 45 km deep · 67 km away · felt by 1
  31. 1.619 km SE of Unalaska, Alaska · 1899 days ago · 78 km deep · 88 km away
  32. 2.083 km SE of Unalaska, Alaska · 1899 days ago · 37 km deep · 97 km away
  33. 1.840 km S of Unalaska, Alaska · 1897 days ago · 61 km deep · 63 km away
  34. 1.9141 km ESE of Nikolski, Alaska · 1897 days ago · 25 km deep · 90 km away
  35. 1.63 km NNW of Dutch Harbor, Alaska · 1897 days ago · 5 km deep · 90 km away
  36. 1.6125 km S of Unalaska, Alaska · 1896 days ago · 17 km deep · 67 km away
  37. 1.847 km ESE of Nikolski, Alaska · 1896 days ago · 32 km deep · 86 km away
  38. 1.786 km S of Unalaska, Alaska · 1896 days ago · 31 km deep · 33 km away
  39. 2.731 km S of Unalaska, Alaska · 1895 days ago · 62 km deep · 63 km away
  40. 1.719 km W of Dutch Harbor, Alaska · 1894 days ago · 4 km deep · 79 km away
  41. 1.5Fox Islands, Aleutian Islands, Alaska · 1893 days ago · 91 km deep · 51 km away
  42. 2.092 km SW of Unalaska, Alaska · 1893 days ago · 60 km deep · 14 km away
  43. 2.365 km SW of Unalaska, Alaska · 1890 days ago · 13 km deep · 32 km away
  44. 2.249 km ESE of Nikolski, Alaska · 1890 days ago · 27 km deep · 86 km away
  45. 2.228 km E of Nikolski, Alaska · 1889 days ago · 92 km deep · 85 km away
  46. 2.061 km ESE of Nikolski, Alaska · 1888 days ago · 19 km deep · 86 km away
  47. 1.6141 km ESE of Nikolski, Alaska · 1888 days ago · 11 km deep · 77 km away
  48. 2.747 km SE of Nikolski, Alaska · 1885 days ago · 33 km deep · 94 km away
  49. 1.597 km SSW of Unalaska, Alaska · 1885 days ago · 47 km deep · 11 km away
  50. 2.781 km S of Unalaska, Alaska · 1884 days ago · 35 km deep · 38 km away
  51. 1.720 km SSE of Unalaska, Alaska · 1884 days ago · 73 km deep · 79 km away
  52. 2.756 km ESE of Nikolski, Alaska · 1883 days ago · 32 km deep · 82 km away

Before

  1. 2.637 km ESE of Nikolski, Alaska · 1942 days ago · 34 km deep · 90 km away
  2. 3.733 km SSW of Unalaska, Alaska · 1952 days ago · 77 km deep · 53 km away
  3. 2.746 km ESE of Nikolski, Alaska · 1952 days ago · 24 km deep · 75 km away
  4. 2.955 km SE of Nikolski, Alaska · 1958 days ago · 35 km deep · 98 km away
  5. 2.240 km ESE of Nikolski, Alaska · 1958 days ago · 30 km deep · 86 km away
  6. 1.972 km SSE of Unalaska, Alaska · 1959 days ago · 20 km deep · 81 km away
  7. 1.57 km N of Dutch Harbor, Alaska · 1966 days ago · 10 km deep · 95 km away
  8. 3.653 km ESE of Nikolski, Alaska · 1967 days ago · 35 km deep · 88 km away
  9. 2.088 km E of Nikolski, Alaska · 1968 days ago · 50 km deep · 51 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0216xukxpy. Read Wed, Sep 23, 2026, 8:03 PM UTC.