Alaska earthquakes

M1.5 earthquake 56 km NNE of Kobuk, Alaska

A magnitude 1.5 earthquake struck 56 km NNE of Kobuk, Alaska on Mon, Aug 23, 2021, 8:15 AM AKDT (16:15 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.4 54 km NNE 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
1.5 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2021-08-23 16:15:53 UTC
Depth
5.3 km (3.3 mi), shallow
Epicenter
67.397° N, 156.591° 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

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 4 in the 30 days before it.

After

  1. 1.953 km NNE of Kobuk, Alaska · 1848 days ago · 14 km deep · 19 km away
  2. 1.555 km NNE of Kobuk, Alaska · 1847 days ago · 4 km deep · 19 km away
  3. 2.452 km NE of Kobuk, Alaska · 1846 days ago · 0 km deep · 25 km away
  4. 3.454 km NNE of Kobuk, Alaska · 1846 days ago · 0 km deep · 13 km away
  5. 2.559 km NNE of Kobuk, Alaska · 1846 days ago · 0 km deep · 19 km away
  6. 2.153 km NNE of Kobuk, Alaska · 1845 days ago · 5 km deep · 17 km away
  7. 1.9119 km NNE of Kobuk, Alaska · 1845 days ago · 11 km deep · 63 km away
  8. 1.558 km NNE of Kobuk, Alaska · 1837 days ago · 19 km deep · 20 km away
  9. 1.858 km NNE of Kobuk, Alaska · 1836 days ago · 8 km deep · 20 km away
  10. 2.259 km NNE of Kobuk, Alaska · 1827 days ago · 0 km deep · 19 km away
  11. 1.558 km NE of Kobuk, Alaska · 1827 days ago · 5 km deep · 22 km away
  12. 1.656 km NE of Kobuk, Alaska · 1826 days ago · 14 km deep · 21 km away
  13. 1.655 km NE of Kobuk, Alaska · 1825 days ago · 3 km deep · 21 km away
  14. 1.855 km NNE of Kobuk, Alaska · 1824 days ago · 15 km deep · 19 km away
  15. 1.955 km NNE of Kobuk, Alaska · 1823 days ago · 11 km deep · 18 km away
  16. 2.356 km NE of Kobuk, Alaska · 1823 days ago · 15 km deep · 20 km away
  17. 1.654 km NE of Kobuk, Alaska · 1823 days ago · 14 km deep · 19 km away
  18. 1.558 km NE of Kobuk, Alaska · 1823 days ago · 14 km deep · 21 km away
  19. 2.4northern Alaska · 1820 days ago · 8 km deep · 17 km away
  20. 1.654 km NE of Kobuk, Alaska · 1820 days ago · 0 km deep · 20 km away
  21. 1.953 km NE of Kobuk, Alaska · 1819 days ago · 4 km deep · 21 km away
  22. 1.954 km NNE of Kobuk, Alaska · 1819 days ago · 2 km deep · 18 km away
  23. 2.059 km NNE of Kobuk, Alaska · 1818 days ago · 15 km deep · 19 km away
  24. 1.755 km NE of Kobuk, Alaska · 1815 days ago · 15 km deep · 20 km away
  25. 1.584 km N of Ambler, Alaska · 1814 days ago · 5 km deep · 72 km away
  26. 1.7northern Alaska · 1811 days ago · 10 km deep · 67 km away
  27. 2.054 km NE of Kobuk, Alaska · 1809 days ago · 15 km deep · 20 km away
  28. 1.758 km NNE of Kobuk, Alaska · 1806 days ago · 3 km deep · 14 km away

Before

  1. 1.555 km NE of Ambler, Alaska · 1875 days ago · 5 km deep · 14 km away
  2. 1.934 km NNE of Kobuk, Alaska · 1876 days ago · 22 km deep · 22 km away
  3. 1.545 km NE of Ambler, Alaska · 1885 days ago · 3 km deep · 26 km away
  4. 1.513 km ESE of Kobuk, Alaska · 1888 days ago · 5 km deep · 58 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021aswwtub. Read Thu, Oct 1, 2026, 4:18 PM UTC.