Alaska earthquakes

M1.8 earthquake 121 km S of Unalaska, Alaska

A magnitude 1.8 earthquake struck 121 km S of Unalaska, Alaska on Tue, Jun 22, 2021, 9:31 AM AKDT (17:31 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.0 97 km ENE of Nikolski, Alaska. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
1.8 (ml), micro
Local time
UTC
2021-06-22 17:31:01 UTC
Depth
4.8 km (3.0 mi), shallow
Epicenter
52.789° N, 166.663° 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
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 73 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 1.7165 km S of Unalaska, Alaska · 1914 days ago · 19 km deep · 52 km away
  2. 1.778 km SSW of Unalaska, Alaska · 1909 days ago · 58 km deep · 64 km away
  3. 2.097 km ENE of Nikolski, Alaska · 1909 days ago · 50 km deep · 66 km away
  4. 1.7102 km E of Nikolski, Alaska · 1909 days ago · 26 km deep · 47 km away
  5. 1.877 km S of Unalaska, Alaska · 1909 days ago · 25 km deep · 46 km away
  6. 3.5101 km SSW of Unalaska, Alaska · 1908 days ago · 35 km deep · 44 km away
  7. 4.781 km SSW of Unalaska, Alaska · 1908 days ago · 47 km deep · 45 km away · felt by 3
  8. 2.075 km SSW of Unalaska, Alaska · 1908 days ago · 33 km deep · 48 km away
  9. 1.954 km SE of Unalaska, Alaska · 1906 days ago · 45 km deep · 87 km away
  10. 1.581 km SW of Unalaska, Alaska · 1903 days ago · 13 km deep · 77 km away
  11. 1.695 km SW of Unalaska, Alaska · 1903 days ago · 36 km deep · 72 km away
  12. 2.075 km SW of Unalaska, Alaska · 1903 days ago · 63 km deep · 74 km away
  13. 1.746 km SE of Unalaska, Alaska · 1903 days ago · 56 km deep · 94 km away
  14. 2.2126 km S of Unalaska, Alaska · 1903 days ago · 12 km deep · 6 km away
  15. 2.9126 km S of Unalaska, Alaska · 1902 days ago · 8 km deep · 5 km away
  16. 2.832 km SE of Unalaska, Alaska · 1902 days ago · 62 km deep · 98 km away
  17. 1.876 km E of Nikolski, Alaska · 1902 days ago · 36 km deep · 73 km away
  18. 1.591 km SSW of Unalaska, Alaska · 1902 days ago · 42 km deep · 60 km away
  19. 1.9109 km SSE of Unalaska, Alaska · 1901 days ago · 14 km deep · 72 km away
  20. 1.679 km S of Unalaska, Alaska · 1901 days ago · 18 km deep · 42 km away
  21. 1.686 km SSE of Unalaska, Alaska · 1901 days ago · 17 km deep · 57 km away
  22. 2.181 km SSW of Unalaska, Alaska · 1900 days ago · 26 km deep · 43 km away
  23. 1.8Fox Islands, Aleutian Islands, Alaska · 1900 days ago · 44 km deep · 79 km away
  24. 1.632 km SW of Unalaska, Alaska · 1900 days ago · 80 km deep · 97 km away
  25. 4.052 km E of Nikolski, Alaska · 1899 days ago · 45 km deep · 96 km away · felt by 1
  26. 2.083 km SE of Unalaska, Alaska · 1899 days ago · 37 km deep · 79 km away
  27. 1.840 km S of Unalaska, Alaska · 1897 days ago · 61 km deep · 82 km away
  28. 1.9141 km ESE of Nikolski, Alaska · 1897 days ago · 25 km deep · 44 km away
  29. 1.6125 km S of Unalaska, Alaska · 1896 days ago · 17 km deep · 5 km away
  30. 1.786 km S of Unalaska, Alaska · 1896 days ago · 31 km deep · 37 km away
  31. 2.731 km S of Unalaska, Alaska · 1895 days ago · 62 km deep · 90 km away
  32. 2.092 km SW of Unalaska, Alaska · 1893 days ago · 60 km deep · 73 km away
  33. 2.365 km SW of Unalaska, Alaska · 1890 days ago · 13 km deep · 91 km away
  34. 1.967 km SE of Unalaska, Alaska · 1889 days ago · 23 km deep · 95 km away
  35. 2.061 km ESE of Nikolski, Alaska · 1888 days ago · 19 km deep · 98 km away
  36. 1.6141 km ESE of Nikolski, Alaska · 1888 days ago · 11 km deep · 28 km away
  37. 1.5106 km SSE of Unalaska, Alaska · 1888 days ago · 14 km deep · 74 km away
  38. 1.8192 km SSE of Unalaska, Alaska · 1887 days ago · 19 km deep · 100 km away
  39. 1.597 km SSW of Unalaska, Alaska · 1885 days ago · 47 km deep · 58 km away
  40. 2.781 km S of Unalaska, Alaska · 1884 days ago · 35 km deep · 40 km away
  41. 2.756 km ESE of Nikolski, Alaska · 1883 days ago · 32 km deep · 99 km away
  42. 1.5103 km E of Nikolski, Alaska · 1881 days ago · 48 km deep · 46 km away
  43. 1.575 km SW of Unalaska, Alaska · 1880 days ago · 68 km deep · 82 km away
  44. 2.055 km SW of Unalaska, Alaska · 1879 days ago · 18 km deep · 88 km away
  45. 1.783 km SSW of Unalaska, Alaska · 1879 days ago · 47 km deep · 54 km away
  46. 2.640 km SSE of Unalaska, Alaska · 1877 days ago · 75 km deep · 84 km away
  47. 2.5187 km S of Unalaska, Alaska · 1877 days ago · 10 km deep · 78 km away
  48. 2.0144 km ESE of Nikolski, Alaska · 1877 days ago · 25 km deep · 30 km away
  49. 1.673 km SW of Unalaska, Alaska · 1877 days ago · 70 km deep · 84 km away
  50. 3.094 km SSW of Unalaska, Alaska · 1876 days ago · 35 km deep · 33 km away
  51. 3.588 km SSW of Unalaska, Alaska · 1876 days ago · 35 km deep · 43 km away
  52. 1.688 km SSW of Unalaska, Alaska · 1876 days ago · 26 km deep · 42 km away
  53. 1.789 km SSW of Unalaska, Alaska · 1876 days ago · 26 km deep · 39 km away
  54. 2.0100 km E of Nikolski, Alaska · 1874 days ago · 26 km deep · 48 km away
  55. 1.949 km SSE of Unalaska, Alaska · 1873 days ago · 60 km deep · 85 km away
  56. 2.8192 km SE of Nikolski, Alaska · 1872 days ago · 10 km deep · 95 km away
  57. 2.0137 km S of Unalaska, Alaska · 1872 days ago · 9 km deep · 18 km away
  58. 1.792 km E of Nikolski, Alaska · 1871 days ago · 26 km deep · 60 km away
  59. 1.582 km SSW of Unalaska, Alaska · 1871 days ago · 25 km deep · 46 km away
  60. 1.658 km SW of Unalaska, Alaska · 1870 days ago · 74 km deep · 77 km away

The first 60 of 73.

Before

  1. 1.893 km SSW of Unalaska, Alaska · 1923 days ago · 43 km deep · 53 km away
  2. 2.042 km SSW of Unalaska, Alaska · 1934 days ago · 75 km deep · 83 km away
  3. 3.881 km S of Unalaska, Alaska · 1937 days ago · 35 km deep · 39 km away
  4. 3.472 km SSW of Unalaska, Alaska · 1941 days ago · 53 km deep · 53 km away
  5. 1.686 km SSW of Unalaska, Alaska · 1942 days ago · 23 km deep · 62 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0217yea3j0. Read Wed, Sep 23, 2026, 8:13 PM UTC.