Alaska earthquakes

M1.8 earthquake 53 km SSW of Atka, Alaska

A magnitude 1.8 earthquake struck 53 km SSW of Atka, Alaska on Sat, Mar 20, 2021, 9:09 PM HADT (06:09 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M2.9 82 km SW of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude
1.8 (ml), micro
Local time
UTC
2021-03-21 06:09:23 UTC
Depth
7.8 km (4.8 mi), shallow
Epicenter
51.757° N, 174.531° 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 62 in the 30 days before it.

After

  1. 2.982 km SW of Atka, Alaska · 2013 days ago · 35 km deep · 40 km away
  2. 2.043 km SW of Atka, Alaska · 2012 days ago · 96 km deep · 20 km away
  3. 1.958 km E of Adak, Alaska · 2012 days ago · 79 km deep · 87 km away
  4. 2.7100 km SSE of Atka, Alaska · 2012 days ago · 35 km deep · 66 km away
  5. 2.253 km E of Atka, Alaska · 2010 days ago · 82 km deep · 87 km away
  6. 2.3101 km SE of Adak, Alaska · 2010 days ago · 4 km deep · 84 km away
  7. 1.540 km E of Atka, Alaska · 2009 days ago · 13 km deep · 81 km away
  8. 1.629 km SE of Atka, Alaska · 2009 days ago · 11 km deep · 50 km away
  9. 2.935 km SSW of Atka, Alaska · 2008 days ago · 111 km deep · 20 km away
  10. 1.983 km S of Atka, Alaska · 2007 days ago · 1 km deep · 38 km away
  11. 2.885 km WSW of Atka, Alaska · 2007 days ago · 63 km deep · 49 km away
  12. 2.6102 km SW of Atka, Alaska · 2007 days ago · 25 km deep · 53 km away
  13. 2.1Andreanof Islands, Aleutian Islands, Alaska · 2004 days ago · 15 km deep · 56 km away
  14. 3.7131 km SSW of Atka, Alaska · 2004 days ago · 24 km deep · 78 km away
  15. 2.6127 km SSW of Atka, Alaska · 2004 days ago · 27 km deep · 73 km away
  16. 2.9Andreanof Islands, Aleutian Islands, Alaska · 2004 days ago · 16 km deep · 76 km away
  17. 2.032 km SE of Atka, Alaska · 2003 days ago · 66 km deep · 49 km away
  18. 2.051 km E of Adak, Alaska · 2003 days ago · 104 km deep · 97 km away
  19. 1.980 km ESE of Adak, Alaska · 2003 days ago · 46 km deep · 79 km away
  20. 1.875 km SW of Atka, Alaska · 2003 days ago · 42 km deep · 26 km away
  21. 1.9123 km SSW of Atka, Alaska · 2003 days ago · 16 km deep · 69 km away
  22. 1.975 km E of Adak, Alaska · 2001 days ago · 78 km deep · 74 km away
  23. 3.392 km SW of Atka, Alaska · 2000 days ago · 35 km deep · 46 km away
  24. 2.980 km S of Atka, Alaska · 2000 days ago · 34 km deep · 45 km away
  25. 3.752 km WSW of Atka, Alaska · 1999 days ago · 10 km deep · 36 km away
  26. 1.681 km SE of Adak, Alaska · 1998 days ago · 25 km deep · 89 km away
  27. 1.972 km ESE of Adak, Alaska · 1997 days ago · 29 km deep · 88 km away
  28. 2.866 km SSE of Atka, Alaska · 1997 days ago · 27 km deep · 49 km away
  29. 2.570 km ESE of Adak, Alaska · 1996 days ago · 23 km deep · 78 km away
  30. 4.276 km ESE of Atka, Alaska · 1996 days ago · 189 km deep · 92 km away
  31. 2.642 km S of Atka, Alaska · 1996 days ago · 77 km deep · 20 km away
  32. 2.2Andreanof Islands, Aleutian Islands, Alaska · 1995 days ago · 15 km deep · 93 km away
  33. 1.846 km NE of Atka, Alaska · 1995 days ago · 2 km deep · 97 km away
  34. 2.59 km SSE of Atka, Alaska · 1995 days ago · 187 km deep · 47 km away
  35. 3.687 km SW of Atka, Alaska · 1995 days ago · 35 km deep · 39 km away
  36. 3.9Andreanof Islands, Aleutian Islands, Alaska · 1995 days ago · 221 km deep · 90 km away
  37. 1.736 km W of Atka, Alaska · 1995 days ago · 25 km deep · 49 km away
  38. 1.979 km ESE of Adak, Alaska · 1995 days ago · 32 km deep · 70 km away
  39. 2.163 km ESE of Atka, Alaska · 1995 days ago · 24 km deep · 80 km away
  40. 2.7121 km S of Atka, Alaska · 1995 days ago · 10 km deep · 74 km away
  41. 2.6115 km S of Atka, Alaska · 1995 days ago · 10 km deep · 69 km away
  42. 2.695 km ESE of Adak, Alaska · 1992 days ago · 35 km deep · 60 km away
  43. 3.629 km NE of Atka, AK · 1990 days ago · 174 km deep · 81 km away
  44. 1.966 km SE of Adak, Alaska · 1990 days ago · 45 km deep · 94 km away
  45. 3.075 km WSW of Atka, Alaska · 1989 days ago · 233 km deep · 56 km away
  46. 2.086 km S of Atka, Alaska · 1988 days ago · 26 km deep · 40 km away
  47. 2.047 km ESE of Atka, Alaska · 1987 days ago · 65 km deep · 77 km away
  48. 3.149 km SW of Atka, Alaska · 1987 days ago · 10 km deep · 24 km away
  49. 1.654 km E of Atka, Alaska · 1987 days ago · 13 km deep · 90 km away
  50. 1.575 km ESE of Adak, Alaska · 1987 days ago · 29 km deep · 77 km away
  51. 1.978 km SSE of Atka, Alaska · 1986 days ago · 17 km deep · 62 km away
  52. 1.628 km SE of Atka, Alaska · 1986 days ago · 11 km deep · 47 km away
  53. 2.874 km ESE of Adak, Alaska · 1986 days ago · 35 km deep · 86 km away
  54. 3.646 km N of Atka, Alaska · 1986 days ago · 192 km deep · 97 km away
  55. 2.0124 km S of Atka, Alaska · 1986 days ago · 18 km deep · 76 km away
  56. 2.182 km E of Adak, Alaska · 1985 days ago · 116 km deep · 68 km away
  57. 1.815 km SSW of Atka, Alaska · 1985 days ago · 74 km deep · 39 km away
  58. 1.943 km SE of Atka, Alaska · 1985 days ago · 17 km deep · 57 km away
  59. 1.861 km E of Atka, Alaska · 1985 days ago · 13 km deep · 96 km away
  60. 1.678 km E of Adak, Alaska · 1985 days ago · 71 km deep · 68 km away

The first 60 of 96.

Before

  1. 2.214 km SSW of Atka, Alaska · 2013 days ago · 134 km deep · 39 km away
  2. 2.990 km SE of Atka, Alaska · 2014 days ago · 35 km deep · 90 km away
  3. 2.6121 km SSE of Atka, Alaska · 2014 days ago · 35 km deep · 88 km away
  4. 2.210 km NNW of Atka, Alaska · 2014 days ago · 114 km deep · 60 km away
  5. 3.192 km SE of Adak, Alaska · 2015 days ago · 32 km deep · 82 km away
  6. 2.5104 km ESE of Adak, Alaska · 2015 days ago · 35 km deep · 60 km away
  7. 2.6100 km ESE of Adak, Alaska · 2015 days ago · 28 km deep · 56 km away
  8. 1.872 km SW of Atka, Alaska · 2015 days ago · 25 km deep · 26 km away
  9. 1.943 km ENE of Atka, Alaska · 2016 days ago · 7 km deep · 91 km away
  10. 2.043 km SSW of Atka, Alaska · 2016 days ago · 47 km deep · 13 km away
  11. 4.737 km SSW of Atka, Alaska · 2017 days ago · 65 km deep · 18 km away
  12. 2.427 km E of Atka, Alaska · 2017 days ago · 124 km deep · 68 km away
  13. 1.689 km SW of Atka, Alaska · 2017 days ago · 26 km deep · 45 km away
  14. 1.951 km E of Adak, Alaska · 2017 days ago · 131 km deep · 94 km away
  15. 2.087 km ESE of Adak, Alaska · 2018 days ago · 36 km deep · 67 km away
  16. 2.1100 km ESE of Adak, Alaska · 2018 days ago · 26 km deep · 59 km away
  17. 1.983 km SW of Atka, Alaska · 2018 days ago · 26 km deep · 32 km away
  18. 2.792 km SW of Atka, Alaska · 2019 days ago · 34 km deep · 49 km away
  19. 4.033 km S of Atka, Alaska · 2019 days ago · 23 km deep · 27 km away
  20. 2.183 km SSE of Atka, Alaska · 2020 days ago · 13 km deep · 68 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0213oemcdr. Read Thu, Sep 24, 2026, 8:07 AM UTC.