Alaska earthquakes

M1.6 earthquake 81 km SE of Adak, Alaska

A magnitude 1.6 earthquake struck 81 km SE of Adak, Alaska on Mon, Apr 5, 2021, 3:35 AM HADT (12:35 UTC), 25 km (16 mi) below the surface.

A larger quake followed: M4.4 44 km SE of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
1.6 (ml), micro
Local time
UTC
2021-04-05 12:35:16 UTC
Depth
25.4 km (15.8 mi), shallow
Epicenter
51.423° N, 175.704° 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

Nearby

Within 100 km, magnitude 1.5 and up: 96 in the 60 days after this one and 63 in the 30 days before it.

After

  1. 4.444 km SE of Adak, Alaska · 1997 days ago · 51 km deep · 40 km away · felt by 1
  2. 1.972 km ESE of Adak, Alaska · 1997 days ago · 29 km deep · 12 km away
  3. 1.663 km SSE of Adak, Alaska · 1997 days ago · 22 km deep · 30 km away
  4. 2.570 km ESE of Adak, Alaska · 1997 days ago · 23 km deep · 30 km away
  5. 2.050 km SW of Adak, Alaska · 1996 days ago · 42 km deep · 94 km away
  6. 1.739 km SSE of Adak, Alaska · 1996 days ago · 35 km deep · 50 km away
  7. 3.687 km SW of Atka, Alaska · 1996 days ago · 35 km deep · 50 km away
  8. 2.0162 km SE of Adak, Alaska · 1995 days ago · 20 km deep · 85 km away
  9. 1.979 km ESE of Adak, Alaska · 1995 days ago · 32 km deep · 30 km away
  10. 2.565 km SSW of Adak, Alaska · 1995 days ago · 35 km deep · 86 km away
  11. 1.961 km SE of Adak, Alaska · 1994 days ago · 15 km deep · 26 km away
  12. 3.328 km S of Adak, Alaska · 1994 days ago · 69 km deep · 68 km away
  13. 2.695 km ESE of Adak, Alaska · 1992 days ago · 35 km deep · 30 km away
  14. 1.759 km SSE of Adak, Alaska · 1991 days ago · 26 km deep · 33 km away
  15. 1.855 km SSW of Adak, Alaska · 1990 days ago · 45 km deep · 76 km away
  16. 1.966 km SE of Adak, Alaska · 1990 days ago · 45 km deep · 16 km away
  17. 1.743 km SSW of Adak, Alaska · 1990 days ago · 50 km deep · 77 km away
  18. 3.075 km WSW of Atka, Alaska · 1989 days ago · 233 km deep · 71 km away
  19. 1.947 km SE of Adak, Alaska · 1989 days ago · 43 km deep · 37 km away
  20. 2.241 km E of Adak, Alaska · 1989 days ago · 75 km deep · 49 km away
  21. 2.350 km ENE of Adak, Alaska · 1989 days ago · 183 km deep · 79 km away
  22. 2.086 km S of Atka, Alaska · 1988 days ago · 26 km deep · 97 km away
  23. 1.719 km SW of Adak, Alaska · 1988 days ago · 11 km deep · 86 km away
  24. 3.149 km SW of Atka, Alaska · 1988 days ago · 10 km deep · 85 km away
  25. 2.753 km SSW of Adak, Alaska · 1987 days ago · 36 km deep · 93 km away
  26. 1.734 km NE of Adak, Alaska · 1987 days ago · 129 km deep · 79 km away
  27. 2.525 km SE of Adak, Alaska · 1987 days ago · 78 km deep · 57 km away
  28. 1.575 km ESE of Adak, Alaska · 1987 days ago · 29 km deep · 21 km away
  29. 2.874 km ESE of Adak, Alaska · 1986 days ago · 35 km deep · 11 km away
  30. 1.633 km SSW of Adak, Alaska · 1986 days ago · 51 km deep · 83 km away
  31. 1.548 km SSE of Adak, Alaska · 1986 days ago · 23 km deep · 39 km away
  32. 1.662 km SSE of Adak, Alaska · 1986 days ago · 22 km deep · 34 km away
  33. 3.898 km SSE of Adak, Alaska · 1986 days ago · 10 km deep · 41 km away
  34. 1.555 km SSW of Adak, Alaska · 1986 days ago · 19 km deep · 81 km away
  35. 1.552 km SSW of Adak, Alaska · 1986 days ago · 36 km deep · 93 km away
  36. 1.767 km SSE of Adak, Alaska · 1986 days ago · 12 km deep · 42 km away
  37. 2.182 km E of Adak, Alaska · 1985 days ago · 116 km deep · 65 km away
  38. 1.575 km SSE of Adak, Alaska · 1985 days ago · 26 km deep · 41 km away
  39. 1.5Andreanof Islands, Aleutian Islands, Alaska · 1985 days ago · 39 km deep · 67 km away
  40. 1.678 km E of Adak, Alaska · 1985 days ago · 71 km deep · 52 km away
  41. 1.756 km E of Adak, Alaska · 1985 days ago · 71 km deep · 52 km away
  42. 1.663 km S of Adak, Alaska · 1985 days ago · 25 km deep · 76 km away
  43. 1.737 km SSE of Adak, Alaska · 1984 days ago · 57 km deep · 58 km away
  44. 1.861 km SSE of Adak, Alaska · 1984 days ago · 22 km deep · 36 km away
  45. 1.681 km SE of Adak, Alaska · 1984 days ago · 25 km deep · 5 km away
  46. 2.6102 km ESE of Adak, Alaska · 1984 days ago · 35 km deep · 32 km away
  47. 1.9121 km SSW of Atka, Alaska · 1984 days ago · 8 km deep · 55 km away
  48. 1.855 km SSE of Adak, Alaska · 1984 days ago · 21 km deep · 39 km away
  49. 1.741 km SSE of Adak, Alaska · 1984 days ago · 33 km deep · 47 km away
  50. 1.552 km SW of Adak, Alaska · 1983 days ago · 43 km deep · 96 km away
  51. 1.861 km SSE of Adak, Alaska · 1983 days ago · 16 km deep · 31 km away
  52. 2.454 km ENE of Adak, Alaska · 1982 days ago · 197 km deep · 73 km away
  53. 1.683 km SW of Atka, Alaska · 1982 days ago · 26 km deep · 51 km away
  54. 2.0Andreanof Islands, Aleutian Islands, Alaska · 1982 days ago · 69 km deep · 43 km away
  55. 3.7106 km ESE of Adak, Alaska · 1981 days ago · 35 km deep · 34 km away
  56. 1.560 km SSW of Adak, Alaska · 1981 days ago · 26 km deep · 87 km away
  57. 1.834 km ENE of Adak, Alaska · 1981 days ago · 11 km deep · 77 km away
  58. 2.232 km NE of Adak, Alaska · 1981 days ago · 9 km deep · 84 km away
  59. 2.635 km NE of Adak, Alaska · 1981 days ago · 10 km deep · 81 km away
  60. 1.766 km SW of Atka, Alaska · 1980 days ago · 63 km deep · 69 km away

The first 60 of 96.

Before

  1. 3.752 km WSW of Atka, Alaska · 2000 days ago · 10 km deep · 84 km away
  2. 1.852 km SSE of Adak, Alaska · 2000 days ago · 24 km deep · 53 km away
  3. 3.392 km SW of Atka, Alaska · 2000 days ago · 35 km deep · 43 km away
  4. 2.916 km SSE of Adak, Alaska · 2001 days ago · 64 km deep · 67 km away
  5. 2.125 km S of Adak, Alaska · 2001 days ago · 57 km deep · 67 km away
  6. 1.975 km E of Adak, Alaska · 2001 days ago · 78 km deep · 61 km away
  7. 2.843 km SSE of Adak, Alaska · 2002 days ago · 40 km deep · 53 km away
  8. 1.958 km SSE of Adak, Alaska · 2003 days ago · 23 km deep · 35 km away
  9. 1.860 km SE of Adak, Alaska · 2003 days ago · 34 km deep · 27 km away
  10. 1.9123 km SSW of Atka, Alaska · 2003 days ago · 16 km deep · 49 km away
  11. 1.875 km SW of Atka, Alaska · 2003 days ago · 42 km deep · 64 km away
  12. 1.980 km ESE of Adak, Alaska · 2003 days ago · 46 km deep · 13 km away
  13. 2.051 km E of Adak, Alaska · 2004 days ago · 104 km deep · 61 km away
  14. 2.9Andreanof Islands, Aleutian Islands, Alaska · 2004 days ago · 16 km deep · 59 km away
  15. 2.6127 km SSW of Atka, Alaska · 2004 days ago · 27 km deep · 57 km away
  16. 3.7131 km SSW of Atka, Alaska · 2004 days ago · 24 km deep · 62 km away
  17. 3.945 km S of Adak, Alaska · 2004 days ago · 47 km deep · 56 km away
  18. 2.1Andreanof Islands, Aleutian Islands, Alaska · 2004 days ago · 15 km deep · 52 km away
  19. 2.045 km SE of Adak, Alaska · 2005 days ago · 46 km deep · 36 km away
  20. 1.937 km SW of Adak, Alaska · 2007 days ago · 55 km deep · 98 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0214dbepio. Read Thu, Sep 24, 2026, 3:40 PM UTC.