Alaska earthquakes

M1.8 earthquake 40 km SSW of Unalaska, Alaska

A magnitude 1.8 earthquake struck 40 km SSW of Unalaska, Alaska on Sat, Feb 6, 2021, 6:22 AM AKST (15:22 UTC), 73 km (45 mi) below the surface.

A larger quake followed: M3.2 54 km SE of Unalaska, 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
2021-02-06 15:22:07 UTC
Depth
72.6 km (45.1 mi), intermediate-depth
Epicenter
53.517° N, 166.658° 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: 71 in the 60 days after this one and 42 in the 30 days before it.

After

  1. 1.66 km NNW of Dutch Harbor, Alaska · 2055 days ago · 7 km deep · 49 km away
  2. 3.254 km SE of Unalaska, Alaska · 2055 days ago · 35 km deep · 53 km away
  3. 1.987 km ENE of Nikolski, Alaska · 2055 days ago · 73 km deep · 74 km away
  4. 2.890 km SSW of Unalaska, Alaska · 2054 days ago · 26 km deep · 51 km away
  5. 3.988 km SSW of Unalaska, Alaska · 2053 days ago · 44 km deep · 49 km away
  6. 1.688 km SSW of Unalaska, Alaska · 2052 days ago · 26 km deep · 49 km away
  7. 1.677 km SW of Unalaska, Alaska · 2052 days ago · 13 km deep · 49 km away
  8. 2.68 km SE of Unalaska, Alaska · 2051 days ago · 9 km deep · 38 km away
  9. 1.64 km ENE of Unalaska, Alaska · 2051 days ago · 11 km deep · 43 km away
  10. 1.65 km ESE of Unalaska, Alaska · 2050 days ago · 10 km deep · 40 km away
  11. 1.861 km SSE of Unalaska, Alaska · 2050 days ago · 29 km deep · 42 km away
  12. 1.885 km E of Nikolski, Alaska · 2049 days ago · 10 km deep · 89 km away
  13. 2.074 km SSE of Akutan, Alaska · 2048 days ago · 41 km deep · 85 km away
  14. 2.037 km SE of Akutan, Alaska · 2048 days ago · 63 km deep · 100 km away
  15. 2.7Fox Islands, Aleutian Islands, Alaska · 2046 days ago · 35 km deep · 48 km away
  16. 2.013 km ENE of Dutch Harbor, Alaska · 2044 days ago · 95 km deep · 49 km away
  17. 2.072 km SE of Unalaska, Alaska · 2042 days ago · 22 km deep · 57 km away
  18. 2.487 km SSE of Akutan, Alaska · 2041 days ago · 26 km deep · 95 km away
  19. 1.584 km SW of Unalaska, Alaska · 2041 days ago · 14 km deep · 50 km away
  20. 1.984 km S of Unalaska, Alaska · 2039 days ago · 5 km deep · 44 km away
  21. 3.374 km SSW of Unalaska, Alaska · 2038 days ago · 35 km deep · 34 km away
  22. 1.944 km SE of Akutan, Alaska · 2038 days ago · 52 km deep · 89 km away
  23. 2.1118 km S of Unalaska, Alaska · 2038 days ago · 6 km deep · 78 km away
  24. 2.1135 km S of Unalaska, Alaska · 2038 days ago · 37 km deep · 96 km away
  25. 2.7Fox Islands, Aleutian Islands, Alaska · 2038 days ago · 20 km deep · 92 km away
  26. 3.1133 km S of Unalaska, Alaska · 2038 days ago · 29 km deep · 93 km away
  27. 2.185 km SSE of Akutan, Alaska · 2036 days ago · 19 km deep · 77 km away
  28. 3.279 km SSW of Unalaska, Alaska · 2034 days ago · 10 km deep · 42 km away
  29. 1.710 km WNW of Dutch Harbor, Alaska · 2032 days ago · 3 km deep · 45 km away
  30. 2.078 km SSE of Akutan, Alaska · 2032 days ago · 25 km deep · 87 km away
  31. 2.835 km SE of Akutan, Alaska · 2031 days ago · 75 km deep · 94 km away
  32. 2.4136 km S of Unalaska, Alaska · 2026 days ago · 5 km deep · 96 km away
  33. 2.9102 km SSW of Unalaska, Alaska · 2025 days ago · 35 km deep · 61 km away
  34. 2.178 km SSE of Akutan, Alaska · 2020 days ago · 33 km deep · 92 km away
  35. 2.750 km S of Akutan, Alaska · 2020 days ago · 62 km deep · 61 km away
  36. 1.956 km SE of Unalaska, Alaska · 2020 days ago · 25 km deep · 49 km away
  37. 3.148 km S of Unalaska, Alaska · 2019 days ago · 67 km deep · 8 km away
  38. 2.636 km SE of Unalaska, Alaska · 2019 days ago · 41 km deep · 38 km away
  39. 1.979 km S of Unalaska, Alaska · 2017 days ago · 22 km deep · 39 km away
  40. 1.986 km SSW of Unalaska, Alaska · 2017 days ago · 26 km deep · 47 km away
  41. 1.869 km SE of Unalaska, Alaska · 2017 days ago · 43 km deep · 59 km away
  42. 1.666 km SW of Unalaska, Alaska · 2017 days ago · 13 km deep · 44 km away
  43. 1.762 km SSE of Akutan, Alaska · 2016 days ago · 25 km deep · 93 km away
  44. 1.574 km S of Unalaska, Alaska · 2016 days ago · 45 km deep · 34 km away
  45. 1.561 km ESE of Unalaska, Alaska · 2016 days ago · 25 km deep · 61 km away
  46. 3.278 km S of Unalaska, Alaska · 2016 days ago · 25 km deep · 38 km away
  47. 1.988 km ENE of Nikolski, Alaska · 2014 days ago · 55 km deep · 74 km away
  48. 1.825 km SSW of Unalaska, Alaska · 2012 days ago · 70 km deep · 16 km away
  49. 2.161 km SE of Akutan, Alaska · 2012 days ago · 26 km deep · 96 km away
  50. 1.982 km SSE of Akutan, Alaska · 2012 days ago · 25 km deep · 91 km away
  51. 3.077 km SE of Unalaska, Alaska · 2012 days ago · 27 km deep · 63 km away
  52. 2.070 km SE of Unalaska, Alaska · 2012 days ago · 15 km deep · 60 km away
  53. 2.266 km SE of Unalaska, Alaska · 2012 days ago · 48 km deep · 58 km away
  54. 2.880 km SE of Unalaska, Alaska · 2011 days ago · 35 km deep · 65 km away
  55. 2.3124 km S of Unalaska, Alaska · 2009 days ago · 5 km deep · 84 km away
  56. 1.8107 km E of Nikolski, Alaska · 2009 days ago · 16 km deep · 77 km away
  57. 1.771 km SSW of Unalaska, Alaska · 2009 days ago · 50 km deep · 32 km away
  58. 1.727 km S of Unalaska, Alaska · 2009 days ago · 89 km deep · 13 km away
  59. 2.938 km SSE of Unalaska, Alaska · 2008 days ago · 80 km deep · 23 km away
  60. 1.6104 km E of Nikolski, Alaska · 2008 days ago · 26 km deep · 78 km away

The first 60 of 71.

Before

  1. 2.910 km NE of Dutch Harbor, Alaska · 2056 days ago · 18 km deep · 51 km away
  2. 1.731 km ESE of Unalaska, Alaska · 2057 days ago · 68 km deep · 46 km away
  3. 2.074 km SSE of Akutan, Alaska · 2057 days ago · 57 km deep · 96 km away
  4. 1.596 km SSW of Unalaska, Alaska · 2058 days ago · 25 km deep · 58 km away
  5. 2.0134 km S of Unalaska, Alaska · 2059 days ago · 38 km deep · 97 km away
  6. 3.195 km E of Nikolski, Alaska · 2059 days ago · 35 km deep · 94 km away
  7. 2.073 km S of Unalaska, Alaska · 2060 days ago · 25 km deep · 36 km away
  8. 1.922 km SSE of Unalaska, Alaska · 2061 days ago · 90 km deep · 22 km away
  9. 2.3119 km S of Unalaska, Alaska · 2061 days ago · 19 km deep · 80 km away
  10. 2.774 km SE of Unalaska, Alaska · 2061 days ago · 35 km deep · 58 km away
  11. 3.476 km SSE of Akutan, Alaska · 2062 days ago · 35 km deep · 88 km away
  12. 1.760 km SSE of Unalaska, Alaska · 2065 days ago · 41 km deep · 39 km away
  13. 1.993 km E of Nikolski, Alaska · 2065 days ago · 31 km deep · 81 km away
  14. 4.068 km SSW of Unalaska, Alaska · 2065 days ago · 59 km deep · 29 km away
  15. 1.653 km SW of Unalaska, Alaska · 2065 days ago · 16 km deep · 35 km away
  16. 2.543 km S of Unalaska, Alaska · 2067 days ago · 63 km deep · 8 km away
  17. 2.282 km SSW of Unalaska, Alaska · 2067 days ago · 26 km deep · 42 km away
  18. 1.840 km ESE of Unalaska, Alaska · 2068 days ago · 28 km deep · 49 km away
  19. 1.585 km SSW of Unalaska, Alaska · 2068 days ago · 5 km deep · 46 km away
  20. 1.892 km E of Nikolski, Alaska · 2070 days ago · 22 km deep · 85 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0211pfy2pr. Read Wed, Sep 23, 2026, 11:16 PM UTC.