Alaska earthquakes

M1.9 earthquake 93 km ESE of Atka, Alaska

A magnitude 1.9 earthquake struck 93 km ESE of Atka, Alaska on Sat, Oct 2, 2021, 9:11 PM HADT (06:11 UTC), 58 km (36 mi) below the surface.

A larger quake followed: M4.0 69 km SSE 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
1.9 (ml), micro
Local time
UTC
2021-10-03 06:11:46 UTC
Depth
58.3 km (36.2 mi), shallow
Epicenter
51.759° N, 173.032° 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
15

Nearby

Within 100 km, magnitude 1.5 and up: 27 in the 60 days after this one and 27 in the 30 days before it.

After

  1. 2.881 km SSE of Atka, Alaska · 1820 days ago · 35 km deep · 51 km away
  2. 3.633 km SSW of Atka, Alaska · 1820 days ago · 75 km deep · 88 km away
  3. 3.050 km SSE of Atka, Alaska · 1817 days ago · 35 km deep · 61 km away
  4. 3.0108 km SE of Atka, Alaska · 1814 days ago · 31 km deep · 21 km away
  5. 2.929 km SSW of Atka, Alaska · 1800 days ago · 10 km deep · 89 km away
  6. 1.833 km SSW of Atka, Alaska · 1800 days ago · 71 km deep · 97 km away
  7. 4.069 km SSE of Atka, Alaska · 1798 days ago · 53 km deep · 63 km away
  8. 2.7138 km SE of Atka, Alaska · 1796 days ago · 10 km deep · 57 km away
  9. 3.8Andreanof Islands, Aleutian Islands, Alaska · 1796 days ago · 61 km deep · 35 km away
  10. 2.345 km S of Atka, Alaska · 1795 days ago · 223 km deep · 85 km away
  11. 4.097 km S of Atka, Alaska · 1793 days ago · 12 km deep · 90 km away
  12. 3.983 km SSE of Atka, Alaska · 1792 days ago · 35 km deep · 68 km away
  13. 2.483 km S of Atka, Alaska · 1792 days ago · 25 km deep · 98 km away
  14. 2.4112 km SSE of Atka, Alaska · 1792 days ago · 37 km deep · 74 km away
  15. 2.8111 km SSE of Atka, Alaska · 1789 days ago · 35 km deep · 60 km away
  16. 3.4103 km SE of Atka, Alaska · 1788 days ago · 35 km deep · 23 km away
  17. 3.0102 km S of Atka, Alaska · 1787 days ago · 10 km deep · 98 km away
  18. 2.142 km ESE of Atka, Alaska · 1782 days ago · 15 km deep · 53 km away
  19. 1.951 km ESE of Atka, Alaska · 1779 days ago · 63 km deep · 46 km away
  20. 2.847 km S of Atka, Alaska · 1778 days ago · 68 km deep · 72 km away
  21. 1.817 km SSW of Atka, Alaska · 1778 days ago · 76 km deep · 90 km away
  22. 1.952 km SE of Atka, Alaska · 1777 days ago · 55 km deep · 51 km away
  23. 1.824 km S of Atka, Alaska · 1776 days ago · 61 km deep · 80 km away
  24. 1.915 km SSW of Atka, Alaska · 1773 days ago · 85 km deep · 91 km away
  25. 2.097 km S of Atka, Alaska · 1769 days ago · 16 km deep · 78 km away
  26. 3.346 km S of Atka, Alaska · 1767 days ago · 56 km deep · 77 km away
  27. 3.568 km S of Atka, Alaska · 1766 days ago · 91 km deep · 77 km away

Before

  1. 2.632 km ESE of Atka, Alaska · 1830 days ago · 80 km deep · 62 km away
  2. 2.951 km SSW of Atka, Alaska · 1831 days ago · 35 km deep · 99 km away
  3. 1.8Andreanof Islands, Aleutian Islands, Alaska · 1833 days ago · 56 km deep · 77 km away
  4. 3.464 km SSE of Atka, Alaska · 1835 days ago · 35 km deep · 62 km away
  5. 2.777 km SE of Atka, Alaska · 1836 days ago · 35 km deep · 18 km away
  6. 2.332 km ESE of Atka, Alaska · 1836 days ago · 126 km deep · 62 km away
  7. 2.796 km SSE of Atka, Alaska · 1836 days ago · 35 km deep · 71 km away
  8. 2.7105 km SSE of Atka, Alaska · 1836 days ago · 35 km deep · 48 km away
  9. 1.947 km SSW of Atka, Alaska · 1839 days ago · 53 km deep · 92 km away
  10. 2.687 km S of Atka, Alaska · 1839 days ago · 35 km deep · 88 km away
  11. 3.1110 km SE of Atka, Alaska · 1843 days ago · 35 km deep · 33 km away
  12. 2.9122 km SE of Atka, Alaska · 1843 days ago · 30 km deep · 30 km away
  13. 1.950 km SSW of Atka, Alaska · 1846 days ago · 61 km deep · 94 km away
  14. 3.131 km S of Atka, Alaska · 1846 days ago · 4 km deep · 88 km away
  15. 3.147 km S of Atka, Alaska · 1846 days ago · 27 km deep · 85 km away
  16. 3.0140 km E of Atka, Alaska · 1848 days ago · 59 km deep · 75 km away
  17. 1.554 km ENE of Atka, Alaska · 1848 days ago · 4 km deep · 84 km away
  18. 2.893 km SSE of Atka, Alaska · 1849 days ago · 35 km deep · 68 km away
  19. 1.935 km NE of Atka, Alaska · 1849 days ago · 145 km deep · 90 km away
  20. 2.5112 km ESE of Atka, Alaska · 1849 days ago · 35 km deep · 31 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021cojyudz. Read Wed, Sep 30, 2026, 3:47 PM UTC.