Alaska earthquakes

M1.7 earthquake 55 km NE of Kobuk, Alaska

A magnitude 1.7 earthquake struck 55 km NE of Kobuk, Alaska on Mon, Dec 20, 2021, 8:21 PM AKST (05:21 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M3.1 56 km NE of Kobuk, Alaska. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.7 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2021-12-21 05:21:27 UTC
Depth
4.1 km (2.5 mi), shallow
Epicenter
67.318° N, 156.151° 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
34

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 28 in the 60 days after this one and 20 in the 30 days before it.

After

  1. 3.053 km NE of Kobuk, Alaska · 1747 days ago · 4 km deep · 2 km away
  2. 3.156 km NE of Kobuk, Alaska · 1747 days ago · 1 km deep · 1 km away
  3. 1.853 km NNE of Kobuk, Alaska · 1747 days ago · 2 km deep · 3 km away
  4. 1.655 km NE of Kobuk, Alaska · 1746 days ago · 4 km deep · 0 km away
  5. 1.953 km NNE of Kobuk, Alaska · 1746 days ago · 8 km deep · 4 km away
  6. 1.555 km NNE of Kobuk, Alaska · 1746 days ago · 2 km deep · 2 km away
  7. 1.855 km NE of Kobuk, Alaska · 1746 days ago · 1 km deep · 0 km away
  8. 2.555 km NE of Kobuk, Alaska · 1746 days ago · 5 km deep · 2 km away
  9. 1.855 km NE of Kobuk, Alaska · 1746 days ago · 4 km deep · 1 km away
  10. 1.553 km NE of Kobuk, Alaska · 1741 days ago · 8 km deep · 2 km away
  11. 2.951 km NNE of Kobuk, Alaska · 1740 days ago · 5 km deep · 6 km away
  12. 1.649 km NE of Kobuk, Alaska · 1740 days ago · 3 km deep · 7 km away
  13. 1.757 km NNE of Kobuk, Alaska · 1739 days ago · 2 km deep · 6 km away
  14. 1.757 km NNE of Kobuk, Alaska · 1739 days ago · 2 km deep · 10 km away
  15. 2.354 km NNE of Kobuk, Alaska · 1735 days ago · 6 km deep · 3 km away
  16. 1.554 km NE of Kobuk, Alaska · 1728 days ago · 2 km deep · 1 km away
  17. 1.856 km NE of Kobuk, Alaska · 1728 days ago · 2 km deep · 1 km away
  18. 2.254 km NNE of Kobuk, Alaska · 1727 days ago · 16 km deep · 4 km away
  19. 1.855 km NE of Kobuk, Alaska · 1723 days ago · 1 km deep · 1 km away
  20. 1.553 km NNE of Kobuk, Alaska · 1720 days ago · 8 km deep · 3 km away
  21. 2.054 km NNE of Kobuk, Alaska · 1717 days ago · 16 km deep · 4 km away
  22. 1.554 km NE of Kobuk, Alaska · 1717 days ago · 5 km deep · 1 km away
  23. 1.655 km NE of Kobuk, Alaska · 1716 days ago · 14 km deep · 4 km away
  24. 1.557 km NNE of Kobuk, Alaska · 1710 days ago · 7 km deep · 3 km away
  25. 2.253 km NNE of Kobuk, Alaska · 1704 days ago · 8 km deep · 3 km away
  26. 1.670 km NNE of Kobuk, Alaska · 1697 days ago · 5 km deep · 16 km away
  27. 2.155 km NNE of Kobuk, Alaska · 1692 days ago · 12 km deep · 4 km away
  28. 2.355 km NE of Kobuk, Alaska · 1692 days ago · 7 km deep · 1 km away

Before

  1. 1.961 km NNE of Kobuk, Alaska · 1747 days ago · 7 km deep · 6 km away
  2. 2.252 km NE of Kobuk, Alaska · 1747 days ago · 21 km deep · 3 km away
  3. 1.551 km NE of Kobuk, Alaska · 1747 days ago · 19 km deep · 9 km away
  4. 1.656 km NE of Kobuk, Alaska · 1747 days ago · 16 km deep · 0 km away
  5. 2.756 km NNE of Kobuk, Alaska · 1748 days ago · 12 km deep · 2 km away
  6. 2.654 km NE of Kobuk, Alaska · 1748 days ago · 16 km deep · 1 km away
  7. 1.553 km NE of Kobuk, Alaska · 1748 days ago · 5 km deep · 3 km away
  8. 2.054 km NNE of Kobuk, Alaska · 1748 days ago · 23 km deep · 3 km away
  9. 1.556 km NNE of Kobuk, Alaska · 1748 days ago · 3 km deep · 2 km away
  10. 2.954 km NE of Kobuk, Alaska · 1748 days ago · 2 km deep · 1 km away
  11. 1.655 km NE of Kobuk, Alaska · 1749 days ago · 2 km deep · 1 km away
  12. 1.556 km NNE of Kobuk, Alaska · 1749 days ago · 3 km deep · 2 km away
  13. 1.659 km NNE of Kobuk, Alaska · 1750 days ago · 5 km deep · 4 km away
  14. 2.355 km NNE of Kobuk, Alaska · 1752 days ago · 16 km deep · 3 km away
  15. 1.653 km NNE of Kobuk, Alaska · 1754 days ago · 15 km deep · 5 km away
  16. 1.759 km NNE of Kobuk, Alaska · 1757 days ago · 8 km deep · 6 km away
  17. 1.960 km NNE of Kobuk, Alaska · 1759 days ago · 7 km deep · 5 km away
  18. 2.554 km NNE of Kobuk, Alaska · 1759 days ago · 2 km deep · 3 km away
  19. 1.955 km NE of Kobuk, Alaska · 1767 days ago · 5 km deep · 1 km away
  20. 2.3127 km NNE of Ambler, Alaska · 1772 days ago · 11 km deep · 85 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021gb6vxh9. Read Sat, Oct 3, 2026, 4:44 AM UTC.