Alaska earthquakes

M1.6 earthquake 37 km ESE of Adak, Alaska

A magnitude 1.6 earthquake struck 37 km ESE of Adak, Alaska on Mon, Mar 22, 2021, 10:32 AM HADT (19:32 UTC), 66 km (41 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
2021-03-22 19:32:36 UTC
Depth
65.8 km (40.9 mi), shallow
Epicenter
51.717° N, 176.154° 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
14

Nearby

Within 100 km, magnitude 1.5 and up: 132 in the 60 days after this one and 64 in the 30 days before it.

After

  1. 1.867 km SSW of Adak, Alaska · 2012 days ago · 29 km deep · 75 km away
  2. 1.839 km W of Adak, Alaska · 2011 days ago · 76 km deep · 74 km away
  3. 2.3101 km SE of Adak, Alaska · 2010 days ago · 4 km deep · 65 km away
  4. 1.554 km S of Adak, Alaska · 2009 days ago · 25 km deep · 44 km away
  5. 1.772 km SSW of Adak, Alaska · 2009 days ago · 32 km deep · 82 km away
  6. 1.872 km SSW of Adak, Alaska · 2009 days ago · 40 km deep · 84 km away
  7. 1.548 km S of Adak, Alaska · 2007 days ago · 28 km deep · 40 km away
  8. 2.885 km WSW of Atka, Alaska · 2007 days ago · 63 km deep · 63 km away
  9. 2.6102 km SW of Atka, Alaska · 2007 days ago · 25 km deep · 70 km away
  10. 1.763 km S of Adak, Alaska · 2007 days ago · 26 km deep · 60 km away
  11. 3.154 km SSW of Adak, Alaska · 2006 days ago · 51 km deep · 67 km away
  12. 1.937 km SW of Adak, Alaska · 2006 days ago · 55 km deep · 63 km away
  13. 2.045 km SE of Adak, Alaska · 2005 days ago · 46 km deep · 15 km away
  14. 2.1Andreanof Islands, Aleutian Islands, Alaska · 2004 days ago · 15 km deep · 92 km away
  15. 3.945 km S of Adak, Alaska · 2004 days ago · 47 km deep · 37 km away
  16. 2.047 km WSW of Adak, Alaska · 2004 days ago · 74 km deep · 80 km away
  17. 2.051 km E of Adak, Alaska · 2004 days ago · 104 km deep · 32 km away
  18. 1.975 km WSW of Adak, Alaska · 2003 days ago · 30 km deep · 100 km away
  19. 1.980 km ESE of Adak, Alaska · 2003 days ago · 46 km deep · 43 km away
  20. 1.875 km SW of Atka, Alaska · 2003 days ago · 42 km deep · 89 km away
  21. 1.9123 km SSW of Atka, Alaska · 2003 days ago · 16 km deep · 93 km away
  22. 1.860 km SE of Adak, Alaska · 2003 days ago · 34 km deep · 30 km away
  23. 1.958 km SSE of Adak, Alaska · 2003 days ago · 23 km deep · 33 km away
  24. 2.843 km SSE of Adak, Alaska · 2002 days ago · 40 km deep · 32 km away
  25. 1.762 km SW of Adak, Alaska · 2001 days ago · 36 km deep · 77 km away
  26. 2.7Andreanof Islands, Aleutian Islands, Alaska · 2001 days ago · 65 km deep · 99 km away
  27. 1.975 km E of Adak, Alaska · 2001 days ago · 78 km deep · 50 km away
  28. 2.125 km S of Adak, Alaska · 2001 days ago · 57 km deep · 32 km away
  29. 2.916 km SSE of Adak, Alaska · 2001 days ago · 64 km deep · 26 km away
  30. 3.392 km SW of Atka, Alaska · 2000 days ago · 35 km deep · 70 km away
  31. 1.852 km SSE of Adak, Alaska · 2000 days ago · 24 km deep · 40 km away
  32. 3.752 km WSW of Atka, Alaska · 2000 days ago · 10 km deep · 92 km away
  33. 1.681 km SE of Adak, Alaska · 1998 days ago · 25 km deep · 45 km away
  34. 4.444 km SE of Adak, Alaska · 1997 days ago · 51 km deep · 20 km away · felt by 1
  35. 1.972 km ESE of Adak, Alaska · 1997 days ago · 29 km deep · 35 km away
  36. 1.663 km SSE of Adak, Alaska · 1997 days ago · 22 km deep · 36 km away
  37. 2.570 km ESE of Adak, Alaska · 1997 days ago · 23 km deep · 34 km away
  38. 2.050 km SW of Adak, Alaska · 1996 days ago · 42 km deep · 67 km away
  39. 1.739 km SSE of Adak, Alaska · 1996 days ago · 35 km deep · 25 km away
  40. 3.687 km SW of Atka, Alaska · 1995 days ago · 35 km deep · 77 km away
  41. 1.979 km ESE of Adak, Alaska · 1995 days ago · 32 km deep · 43 km away
  42. 2.565 km SSW of Adak, Alaska · 1995 days ago · 35 km deep · 70 km away
  43. 2.965 km WSW of Adak, Alaska · 1994 days ago · 82 km deep · 92 km away
  44. 1.961 km SE of Adak, Alaska · 1994 days ago · 15 km deep · 31 km away
  45. 3.328 km S of Adak, Alaska · 1994 days ago · 69 km deep · 34 km away
  46. 2.695 km ESE of Adak, Alaska · 1992 days ago · 35 km deep · 58 km away
  47. 1.759 km SSE of Adak, Alaska · 1990 days ago · 26 km deep · 33 km away
  48. 1.855 km SSW of Adak, Alaska · 1990 days ago · 45 km deep · 58 km away
  49. 1.966 km SE of Adak, Alaska · 1990 days ago · 45 km deep · 29 km away
  50. 1.743 km SSW of Adak, Alaska · 1990 days ago · 50 km deep · 52 km away
  51. 3.075 km WSW of Atka, Alaska · 1989 days ago · 233 km deep · 69 km away
  52. 1.947 km SE of Adak, Alaska · 1989 days ago · 43 km deep · 21 km away
  53. 2.241 km E of Adak, Alaska · 1989 days ago · 75 km deep · 13 km away
  54. 2.350 km ENE of Adak, Alaska · 1989 days ago · 183 km deep · 44 km away
  55. 1.719 km SW of Adak, Alaska · 1988 days ago · 11 km deep · 47 km away
  56. 3.149 km SW of Atka, Alaska · 1988 days ago · 10 km deep · 98 km away
  57. 2.753 km SSW of Adak, Alaska · 1987 days ago · 36 km deep · 68 km away
  58. 1.734 km NE of Adak, Alaska · 1987 days ago · 129 km deep · 38 km away
  59. 2.525 km SE of Adak, Alaska · 1987 days ago · 78 km deep · 15 km away
  60. 1.575 km ESE of Adak, Alaska · 1987 days ago · 29 km deep · 38 km away

The first 60 of 132.

Before

  1. 1.958 km E of Adak, Alaska · 2012 days ago · 79 km deep · 29 km away
  2. 2.982 km SW of Atka, Alaska · 2013 days ago · 35 km deep · 72 km away
  3. 3.192 km SE of Adak, Alaska · 2015 days ago · 32 km deep · 55 km away
  4. 2.5104 km ESE of Adak, Alaska · 2015 days ago · 35 km deep · 67 km away
  5. 2.6100 km ESE of Adak, Alaska · 2015 days ago · 28 km deep · 64 km away
  6. 1.872 km SW of Atka, Alaska · 2015 days ago · 25 km deep · 87 km away
  7. 1.959 km WSW of Adak, Alaska · 2015 days ago · 67 km deep · 87 km away
  8. 1.565 km SE of Adak, Alaska · 2016 days ago · 13 km deep · 36 km away
  9. 1.758 km SSW of Adak, Alaska · 2017 days ago · 30 km deep · 71 km away
  10. 1.689 km SW of Atka, Alaska · 2018 days ago · 26 km deep · 69 km away
  11. 1.951 km E of Adak, Alaska · 2018 days ago · 131 km deep · 22 km away
  12. 2.087 km ESE of Adak, Alaska · 2018 days ago · 36 km deep · 50 km away
  13. 1.555 km SSW of Adak, Alaska · 2018 days ago · 36 km deep · 70 km away
  14. 2.1100 km ESE of Adak, Alaska · 2018 days ago · 26 km deep · 63 km away
  15. 1.633 km W of Adak, Alaska · 2019 days ago · 10 km deep · 68 km away
  16. 1.983 km SW of Atka, Alaska · 2019 days ago · 26 km deep · 89 km away
  17. 2.567 km SSW of Adak, Alaska · 2019 days ago · 35 km deep · 72 km away
  18. 2.792 km SW of Atka, Alaska · 2019 days ago · 34 km deep · 65 km away
  19. 1.551 km SE of Adak, Alaska · 2021 days ago · 25 km deep · 25 km away
  20. 2.074 km SSW of Adak, Alaska · 2021 days ago · 51 km deep · 84 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0213qa1a9b. Read Thu, Sep 24, 2026, 1:40 PM UTC.