Alaska earthquakes

M1.6 earthquake 38 km SSW of Tanana, Alaska

A magnitude 1.6 earthquake struck 38 km SSW of Tanana, Alaska on Sun, Aug 22, 2021, 8:35 AM AKDT (16:35 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M3.0 78 km S of Hughes, Alaska. This one was a foreshock.

Healy forecastMore in Alaska

Map

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

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The earthquake

Magnitude
1.6 (ml), micro
Local time
UTC
2021-08-22 16:35:55 UTC
Depth
8.0 km (5.0 mi), shallow
Epicenter
64.866° N, 152.476° 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

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 22 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 2.868 km SW of Tanana, Alaska · 1864 days ago · 6 km deep · 31 km away
  2. 1.945 km NW of Tanana, Alaska · 1862 days ago · 20 km deep · 72 km away
  3. 1.565 km WNW of Tanana, Alaska · 1857 days ago · 14 km deep · 74 km away
  4. 1.862 km N of Tanana, Alaska · 1856 days ago · 18 km deep · 99 km away
  5. 2.235 km SSW of Tanana, Alaska · 1852 days ago · 15 km deep · 10 km away
  6. 1.565 km WNW of Tanana, Alaska · 1847 days ago · 7 km deep · 73 km away
  7. 1.665 km WNW of Tanana, Alaska · 1837 days ago · 2 km deep · 78 km away
  8. 1.637 km SE of Tanana, Alaska · 1837 days ago · 4 km deep · 42 km away
  9. 3.078 km S of Hughes, Alaska · 1836 days ago · 8 km deep · 88 km away
  10. 1.766 km WNW of Tanana, Alaska · 1835 days ago · 10 km deep · 74 km away
  11. 1.661 km SSW of Tanana, Alaska · 1831 days ago · 5 km deep · 25 km away
  12. 1.670 km NE of Lake Minchumina, Alaska · 1826 days ago · 18 km deep · 94 km away
  13. 2.315 km NNE of Lake Minchumina, Alaska · 1826 days ago · 14 km deep · 97 km away
  14. 1.681 km ESE of Ruby, Alaska · 1825 days ago · 0 km deep · 70 km away
  15. 1.869 km N of Lake Minchumina, Alaska · 1825 days ago · 3 km deep · 40 km away
  16. 1.741 km WSW of Manley Hot Springs, Alaska · 1820 days ago · 16 km deep · 50 km away
  17. 2.217 km NW of Manley Hot Springs, Alaska · 1819 days ago · 16 km deep · 82 km away
  18. 1.561 km S of Tanana, Alaska · 1813 days ago · 9 km deep · 30 km away
  19. 1.912 km ENE of Tanana, Alaska · 1808 days ago · 15 km deep · 49 km away
  20. 1.865 km N of Lake Minchumina, Alaska · 1807 days ago · 15 km deep · 45 km away
  21. 1.671 km N of Lake Minchumina, Alaska · 1807 days ago · 11 km deep · 39 km away
  22. 1.950 km S of Tanana, Alaska · 1804 days ago · 9 km deep · 24 km away

Before

  1. 1.525 km SSE of Tanana, Alaska · 1881 days ago · 6 km deep · 31 km away
  2. 2.266 km WNW of Tanana, Alaska · 1883 days ago · 12 km deep · 75 km away
  3. 1.769 km S of Tanana, Alaska · 1884 days ago · 13 km deep · 41 km away
  4. 1.576 km NE of Ruby, Alaska · 1887 days ago · 1 km deep · 91 km away
  5. 1.676 km NE of Ruby, Alaska · 1887 days ago · 7 km deep · 93 km away
  6. 3.375 km NE of Ruby, Alaska · 1887 days ago · 9 km deep · 90 km away
  7. 1.675 km NE of Ruby, Alaska · 1888 days ago · 4 km deep · 92 km away
  8. 2.577 km NE of Ruby, Alaska · 1888 days ago · 5 km deep · 91 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021ar9hroj. Read Tue, Sep 29, 2026, 9:50 AM UTC.