Alaska earthquakes

M2.1 earthquake 48 km ESE of Adak, Alaska

A magnitude 2.1 earthquake struck 48 km ESE of Adak, Alaska on Mon, Feb 8, 2021, 1:50 PM HAST (23:50 UTC), 73 km (45 mi) below the surface.

A larger quake followed: M4.4 61 km WSW of Atka, 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
2.1 (ml), micro
Local time
UTC
2021-02-08 23:50:06 UTC
Depth
72.6 km (45.1 mi), intermediate-depth
Epicenter
51.790° N, 175.938° 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
30

Nearby

Within 100 km, magnitude 1.5 and up: 138 in the 60 days after this one and 72 in the 30 days before it.

After

  1. 2.175 km SSE of Adak, Alaska · 2057 days ago · 26 km deep · 66 km away
  2. 2.575 km SSW of Adak, Alaska · 2057 days ago · 35 km deep · 99 km away
  3. 2.0102 km SSW of Atka, Alaska · 2056 days ago · 25 km deep · 88 km away
  4. 1.847 km SSW of Atka, Alaska · 2056 days ago · 44 km deep · 97 km away
  5. 1.726 km W of Adak, Alaska · 2056 days ago · 8 km deep · 75 km away
  6. 3.679 km NNE of Adak, Alaska · 2055 days ago · 218 km deep · 77 km away
  7. 1.848 km SW of Adak, Alaska · 2055 days ago · 45 km deep · 84 km away
  8. 3.176 km SSW of Atka, Alaska · 2055 days ago · 35 km deep · 80 km away
  9. 1.649 km SSW of Adak, Alaska · 2050 days ago · 27 km deep · 80 km away
  10. 1.861 km SSW of Adak, Alaska · 2050 days ago · 33 km deep · 90 km away
  11. 2.656 km S of Adak, Alaska · 2050 days ago · 35 km deep · 66 km away
  12. 3.7100 km SW of Atka, Alaska · 2050 days ago · 40 km deep · 64 km away
  13. 2.860 km WSW of Atka, Alaska · 2049 days ago · 67 km deep · 69 km away
  14. 1.945 km SSE of Adak, Alaska · 2049 days ago · 48 km deep · 48 km away
  15. 1.856 km SW of Adak, Alaska · 2049 days ago · 57 km deep · 96 km away
  16. 1.766 km SSE of Adak, Alaska · 2049 days ago · 14 km deep · 64 km away
  17. 1.694 km SW of Atka, Alaska · 2048 days ago · 20 km deep · 65 km away
  18. 2.748 km WSW of Adak, Alaska · 2048 days ago · 81 km deep · 93 km away
  19. 2.059 km SE of Adak, Alaska · 2047 days ago · 41 km deep · 39 km away
  20. 3.075 km SSE of Adak, Alaska · 2047 days ago · 35 km deep · 55 km away
  21. 4.171 km SSW of Adak, Alaska · 2047 days ago · 35 km deep · 88 km away · felt by 1
  22. 1.991 km ESE of Adak, Alaska · 2046 days ago · 25 km deep · 45 km away
  23. 1.797 km ESE of Adak, Alaska · 2046 days ago · 29 km deep · 50 km away
  24. 1.519 km SW of Adak, Alaska · 2046 days ago · 73 km deep · 60 km away
  25. 1.864 km SSE of Adak, Alaska · 2046 days ago · 22 km deep · 56 km away
  26. 1.856 km SW of Adak, Alaska · 2046 days ago · 30 km deep · 95 km away
  27. 1.964 km SSW of Adak, Alaska · 2045 days ago · 27 km deep · 90 km away
  28. 1.877 km ESE of Adak, Alaska · 2045 days ago · 27 km deep · 37 km away
  29. 1.874 km SE of Adak, Alaska · 2045 days ago · 18 km deep · 44 km away
  30. 2.772 km SSE of Adak, Alaska · 2045 days ago · 35 km deep · 53 km away
  31. 2.7105 km ESE of Adak, Alaska · 2044 days ago · 33 km deep · 60 km away
  32. 2.872 km SE of Adak, Alaska · 2044 days ago · 31 km deep · 49 km away
  33. 1.961 km SE of Adak, Alaska · 2044 days ago · 23 km deep · 36 km away
  34. 2.039 km W of Adak, Alaska · 2043 days ago · 98 km deep · 88 km away
  35. 1.835 km SSE of Adak, Alaska · 2043 days ago · 49 km deep · 48 km away
  36. 2.098 km ESE of Adak, Alaska · 2043 days ago · 37 km deep · 50 km away
  37. 1.845 km SW of Adak, Alaska · 2043 days ago · 63 km deep · 83 km away
  38. 3.362 km WSW of Atka, Alaska · 2043 days ago · 69 km deep · 65 km away
  39. 1.762 km SW of Adak, Alaska · 2042 days ago · 33 km deep · 100 km away
  40. 3.161 km ESE of Adak, Alaska · 2041 days ago · 35 km deep · 24 km away
  41. 2.729 km N of Adak, Alaska · 2041 days ago · 142 km deep · 61 km away
  42. 1.936 km ESE of Adak, Alaska · 2041 days ago · 71 km deep · 13 km away
  43. 1.896 km SW of Atka, Alaska · 2040 days ago · 30 km deep · 59 km away
  44. 1.763 km SSW of Adak, Alaska · 2039 days ago · 27 km deep · 87 km away
  45. 2.067 km SE of Adak, Alaska · 2039 days ago · 26 km deep · 40 km away
  46. 1.761 km SE of Adak, Alaska · 2039 days ago · 13 km deep · 40 km away
  47. 1.754 km S of Adak, Alaska · 2039 days ago · 22 km deep · 60 km away
  48. 1.993 km ESE of Adak, Alaska · 2038 days ago · 26 km deep · 50 km away
  49. 1.546 km SSE of Adak, Alaska · 2038 days ago · 28 km deep · 43 km away
  50. 3.764 km NNE of Adak, Alaska · 2038 days ago · 226 km deep · 68 km away
  51. 4.266 km SSW of Atka, Alaska · 2037 days ago · 63 km deep · 90 km away
  52. 2.986 km SE of Adak, Alaska · 2036 days ago · 35 km deep · 49 km away
  53. 1.758 km SE of Adak, Alaska · 2035 days ago · 32 km deep · 28 km away
  54. 4.461 km WSW of Atka, Alaska · 2035 days ago · 67 km deep · 68 km away · felt by 1
  55. 2.655 km SSW of Adak, Alaska · 2035 days ago · 35 km deep · 83 km away
  56. 3.549 km SSW of Adak, Alaska · 2034 days ago · 38 km deep · 76 km away
  57. 2.773 km SW of Atka, Alaska · 2033 days ago · 35 km deep · 73 km away
  58. 1.952 km SSW of Adak, Alaska · 2033 days ago · 37 km deep · 78 km away
  59. 2.537 km NE of Adak, Alaska · 2033 days ago · 110 km deep · 45 km away
  60. 3.522 km NNW of Adak, Alaska · 2032 days ago · 153 km deep · 64 km away

The first 60 of 138.

Before

  1. 1.827 km WNW of Adak, Alaska · 2058 days ago · 6 km deep · 76 km away
  2. 1.543 km S of Adak, Alaska · 2058 days ago · 30 km deep · 62 km away
  3. 3.560 km SE of Adak, Alaska · 2058 days ago · 34 km deep · 40 km away
  4. 1.895 km ESE of Adak, Alaska · 2058 days ago · 26 km deep · 49 km away
  5. 2.599 km SSE of Adak, Alaska · 2058 days ago · 20 km deep · 84 km away
  6. 3.598 km SSE of Adak, Alaska · 2059 days ago · 10 km deep · 89 km away
  7. 3.784 km SSE of Adak, Alaska · 2059 days ago · 37 km deep · 72 km away
  8. 2.030 km E of Adak, Alaska · 2059 days ago · 77 km deep · 19 km away
  9. 1.863 km SSW of Adak, Alaska · 2059 days ago · 35 km deep · 85 km away
  10. 2.158 km SSE of Adak, Alaska · 2061 days ago · 23 km deep · 53 km away
  11. 2.730 km WNW of Adak, Alaska · 2061 days ago · 13 km deep · 79 km away
  12. 1.956 km SSW of Atka, Alaska · 2062 days ago · 17 km deep · 88 km away
  13. 1.822 km SSW of Adak, Alaska · 2062 days ago · 59 km deep · 58 km away
  14. 2.530 km WNW of Adak, Alaska · 2063 days ago · 10 km deep · 79 km away
  15. 1.924 km SE of Adak, Alaska · 2063 days ago · 62 km deep · 29 km away
  16. 2.693 km SW of Atka, Alaska · 2063 days ago · 35 km deep · 60 km away
  17. 2.188 km E of Adak, Alaska · 2063 days ago · 66 km deep · 40 km away
  18. 1.650 km SSW of Adak, Alaska · 2063 days ago · 57 km deep · 77 km away
  19. 1.622 km SSE of Adak, Alaska · 2063 days ago · 70 km deep · 41 km away
  20. 1.87 km SE of Adak, Alaska · 2063 days ago · 73 km deep · 43 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0211svy8h6. Read Mon, Sep 28, 2026, 11:19 AM UTC.