Alaska earthquakes

M1.9 earthquake 80 km SSW of Atka, Alaska

A magnitude 1.9 earthquake struck 80 km SSW of Atka, Alaska on Sun, Oct 31, 2021, 5:53 AM HADT (14:53 UTC), 29 km (18 mi) below the surface.

A larger quake followed: M4.3 107 km SSW of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude
1.9 (ml), micro
Local time
UTC
2021-10-31 14:53:55 UTC
Depth
28.6 km (17.8 mi), shallow
Epicenter
51.540° N, 174.690° 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
26

Nearby

Within 100 km, magnitude 1.5 and up: 99 in the 60 days after this one and 39 in the 30 days before it.

After

  1. 2.7108 km S of Atka, Alaska · 1795 days ago · 28 km deep · 38 km away
  2. 2.790 km SSW of Atka, Alaska · 1795 days ago · 35 km deep · 13 km away
  3. 4.097 km S of Atka, Alaska · 1792 days ago · 12 km deep · 46 km away
  4. 3.983 km SSE of Atka, Alaska · 1792 days ago · 35 km deep · 56 km away
  5. 2.483 km S of Atka, Alaska · 1792 days ago · 25 km deep · 24 km away
  6. 2.4112 km SSE of Atka, Alaska · 1792 days ago · 37 km deep · 77 km away
  7. 2.675 km SSW of Atka, Alaska · 1791 days ago · 35 km deep · 11 km away
  8. 2.060 km ESE of Adak, Alaska · 1790 days ago · 39 km deep · 82 km away
  9. 2.5103 km ESE of Adak, Alaska · 1790 days ago · 35 km deep · 40 km away
  10. 1.872 km SW of Atka, Alaska · 1790 days ago · 17 km deep · 19 km away
  11. 2.8111 km SSE of Atka, Alaska · 1789 days ago · 35 km deep · 88 km away
  12. 2.061 km SW of Atka, Alaska · 1786 days ago · 63 km deep · 32 km away
  13. 3.0102 km S of Atka, Alaska · 1786 days ago · 10 km deep · 44 km away
  14. 1.575 km SE of Adak, Alaska · 1786 days ago · 23 km deep · 76 km away
  15. 1.861 km SE of Adak, Alaska · 1784 days ago · 5 km deep · 94 km away
  16. 1.770 km SE of Adak, Alaska · 1784 days ago · 22 km deep · 77 km away
  17. 2.050 km E of Adak, Alaska · 1784 days ago · 81 km deep · 89 km away
  18. 2.059 km SSW of Atka, Alaska · 1783 days ago · 17 km deep · 20 km away
  19. 2.2122 km S of Atka, Alaska · 1783 days ago · 30 km deep · 57 km away
  20. 2.965 km SE of Adak, Alaska · 1783 days ago · 35 km deep · 94 km away
  21. 1.757 km WSW of Atka, Alaska · 1782 days ago · 75 km deep · 60 km away
  22. 2.034 km WSW of Atka, Alaska · 1782 days ago · 88 km deep · 61 km away
  23. 1.976 km ESE of Adak, Alaska · 1782 days ago · 57 km deep · 63 km away
  24. 2.142 km ESE of Atka, Alaska · 1781 days ago · 15 km deep · 95 km away
  25. 1.763 km SE of Adak, Alaska · 1780 days ago · 21 km deep · 92 km away
  26. 1.771 km SW of Atka, Alaska · 1780 days ago · 35 km deep · 26 km away
  27. 1.773 km WSW of Atka, Alaska · 1779 days ago · 74 km deep · 62 km away
  28. 2.949 km SW of Atka, Alaska · 1779 days ago · 72 km deep · 34 km away
  29. 1.657 km WSW of Atka, Alaska · 1778 days ago · 70 km deep · 50 km away
  30. 2.087 km SW of Atka, Alaska · 1778 days ago · 15 km deep · 20 km away
  31. 2.847 km S of Atka, Alaska · 1778 days ago · 68 km deep · 49 km away
  32. 1.817 km SSW of Atka, Alaska · 1777 days ago · 76 km deep · 63 km away
  33. 1.596 km ESE of Adak, Alaska · 1777 days ago · 22 km deep · 44 km away
  34. 1.952 km SE of Atka, Alaska · 1777 days ago · 55 km deep · 70 km away
  35. 2.273 km ENE of Adak, Alaska · 1776 days ago · 170 km deep · 95 km away
  36. 1.951 km SSW of Atka, Alaska · 1776 days ago · 23 km deep · 30 km away
  37. 1.967 km ENE of Adak, Alaska · 1776 days ago · 146 km deep · 92 km away
  38. 2.8130 km S of Atka, Alaska · 1776 days ago · 10 km deep · 70 km away
  39. 1.824 km S of Atka, Alaska · 1776 days ago · 61 km deep · 63 km away
  40. 1.750 km ESE of Adak, Alaska · 1776 days ago · 65 km deep · 89 km away
  41. 1.958 km E of Adak, Alaska · 1775 days ago · 81 km deep · 86 km away
  42. 1.789 km SW of Atka, Alaska · 1775 days ago · 31 km deep · 29 km away
  43. 1.992 km SW of Atka, Alaska · 1775 days ago · 34 km deep · 25 km away
  44. 2.5161 km S of Atka, Alaska · 1774 days ago · 24 km deep · 98 km away
  45. 1.915 km SSW of Atka, Alaska · 1773 days ago · 85 km deep · 65 km away
  46. 2.770 km SE of Adak, Alaska · 1773 days ago · 32 km deep · 93 km away
  47. 1.662 km SE of Adak, Alaska · 1773 days ago · 26 km deep · 99 km away
  48. 1.766 km SE of Adak, Alaska · 1770 days ago · 25 km deep · 95 km away
  49. 1.962 km SE of Adak, Alaska · 1770 days ago · 26 km deep · 99 km away
  50. 2.068 km ENE of Adak, Alaska · 1769 days ago · 144 km deep · 90 km away
  51. 2.097 km S of Atka, Alaska · 1768 days ago · 16 km deep · 58 km away
  52. 1.878 km E of Adak, Alaska · 1768 days ago · 30 km deep · 63 km away
  53. 3.454 km SE of Adak, Alaska · 1767 days ago · 36 km deep · 98 km away
  54. 3.346 km S of Atka, Alaska · 1767 days ago · 56 km deep · 46 km away
  55. 2.646 km SW of Atka, Alaska · 1767 days ago · 14 km deep · 45 km away
  56. 3.568 km S of Atka, Alaska · 1766 days ago · 91 km deep · 40 km away
  57. 1.951 km ENE of Adak, Alaska · 1765 days ago · 89 km deep · 97 km away
  58. 1.797 km ESE of Adak, Alaska · 1764 days ago · 13 km deep · 45 km away
  59. 2.980 km ESE of Adak, Alaska · 1764 days ago · 34 km deep · 59 km away
  60. 3.515 km NW of Atka, Alaska · 1763 days ago · 178 km deep · 89 km away

The first 60 of 99.

Before

  1. 1.627 km SW of Atka, Alaska · 1795 days ago · 67 km deep · 54 km away
  2. 1.627 km SW of Atka, Alaska · 1795 days ago · 67 km deep · 54 km away
  3. 2.345 km S of Atka, Alaska · 1795 days ago · 223 km deep · 40 km away
  4. 2.678 km E of Adak, Alaska · 1796 days ago · 75 km deep · 66 km away
  5. 1.881 km ESE of Adak, Alaska · 1797 days ago · 55 km deep · 58 km away
  6. 2.073 km SE of Adak, Alaska · 1797 days ago · 23 km deep · 78 km away
  7. 2.062 km E of Adak, Alaska · 1797 days ago · 74 km deep · 84 km away
  8. 4.069 km SSE of Atka, Alaska · 1797 days ago · 53 km deep · 54 km away
  9. 1.985 km ESE of Adak, Alaska · 1798 days ago · 44 km deep · 54 km away
  10. 2.657 km ESE of Adak, Alaska · 1798 days ago · 68 km deep · 82 km away
  11. 1.982 km ESE of Adak, Alaska · 1798 days ago · 48 km deep · 58 km away
  12. 2.974 km W of Atka, Alaska · 1799 days ago · 252 km deep · 76 km away
  13. 1.833 km SSW of Atka, Alaska · 1800 days ago · 71 km deep · 46 km away
  14. 2.929 km SSW of Atka, Alaska · 1800 days ago · 10 km deep · 52 km away
  15. 1.658 km SE of Adak, Alaska · 1800 days ago · 25 km deep · 90 km away
  16. 1.889 km SW of Atka, Alaska · 1800 days ago · 26 km deep · 23 km away
  17. 3.563 km ESE of Adak, Alaska · 1800 days ago · 35 km deep · 80 km away
  18. 2.081 km ENE of Adak, Alaska · 1802 days ago · 115 km deep · 79 km away
  19. 2.469 km WNW of Atka, Alaska · 1803 days ago · 120 km deep · 99 km away
  20. 3.693 km ESE of Adak, Alaska · 1805 days ago · 24 km deep · 45 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021dz011x6. Read Wed, Sep 30, 2026, 2:55 AM UTC.