Alaska earthquakes

M2.8 earthquake 68 km SW of Tanana, Alaska

A magnitude 2.8 earthquake struck 68 km SW of Tanana, Alaska on Sun, Aug 22, 2021, 1:34 PM AKDT (21:34 UTC), 6 km (4 mi) below the surface.

Automatic solution: the magnitude and location may still be revised.

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
2.8 (ml), micro
Local time
UTC
2021-08-22 21:34:33 UTC
Depth
5.7 km (3.5 mi), shallow
Epicenter
64.691° N, 152.992° W
Region
Alaska
Tsunami flag
No
Status
Automatic solution, may be revised

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

An automatic solution; a seismologist may revise it.

Stations used
41

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 1.945 km NW of Tanana, Alaska · 1862 days ago · 20 km deep · 92 km away
  2. 1.565 km WNW of Tanana, Alaska · 1857 days ago · 14 km deep · 83 km away
  3. 2.235 km SSW of Tanana, Alaska · 1852 days ago · 15 km deep · 39 km away
  4. 1.840 km E of Ruby, Alaska · 1850 days ago · 7 km deep · 79 km away
  5. 1.839 km E of Ruby, Alaska · 1848 days ago · 6 km deep · 79 km away
  6. 1.565 km WNW of Tanana, Alaska · 1847 days ago · 7 km deep · 81 km away
  7. 1.665 km WNW of Tanana, Alaska · 1837 days ago · 2 km deep · 88 km away
  8. 1.637 km SE of Tanana, Alaska · 1837 days ago · 4 km deep · 71 km away
  9. 3.078 km S of Hughes, Alaska · 1836 days ago · 8 km deep · 87 km away
  10. 1.766 km WNW of Tanana, Alaska · 1835 days ago · 10 km deep · 82 km away
  11. 1.661 km SSW of Tanana, Alaska · 1830 days ago · 5 km deep · 25 km away
  12. 2.315 km NNE of Lake Minchumina, Alaska · 1826 days ago · 14 km deep · 86 km away
  13. 1.681 km ESE of Ruby, Alaska · 1825 days ago · 0 km deep · 40 km away
  14. 1.869 km N of Lake Minchumina, Alaska · 1825 days ago · 3 km deep · 33 km away
  15. 1.741 km WSW of Manley Hot Springs, Alaska · 1819 days ago · 16 km deep · 77 km away
  16. 1.561 km S of Tanana, Alaska · 1813 days ago · 9 km deep · 38 km away
  17. 1.912 km ENE of Tanana, Alaska · 1808 days ago · 15 km deep · 80 km away
  18. 1.865 km N of Lake Minchumina, Alaska · 1807 days ago · 15 km deep · 34 km away
  19. 1.671 km N of Lake Minchumina, Alaska · 1807 days ago · 11 km deep · 35 km away
  20. 1.950 km S of Tanana, Alaska · 1804 days ago · 9 km deep · 42 km away

Before

  1. 1.638 km SSW of Tanana, Alaska · 1864 days ago · 8 km deep · 31 km away
  2. 3.039 km WNW of Lake Minchumina, Alaska · 1875 days ago · 16 km deep · 79 km away
  3. 1.525 km SSE of Tanana, Alaska · 1881 days ago · 6 km deep · 62 km away
  4. 2.266 km WNW of Tanana, Alaska · 1883 days ago · 12 km deep · 83 km away
  5. 1.769 km S of Tanana, Alaska · 1884 days ago · 13 km deep · 48 km away
  6. 1.576 km NE of Ruby, Alaska · 1887 days ago · 1 km deep · 82 km away
  7. 1.676 km NE of Ruby, Alaska · 1887 days ago · 7 km deep · 84 km away
  8. 3.375 km NE of Ruby, Alaska · 1887 days ago · 9 km deep · 80 km away
  9. 1.675 km NE of Ruby, Alaska · 1887 days ago · 4 km deep · 82 km away
  10. 2.577 km NE of Ruby, Alaska · 1887 days ago · 5 km deep · 81 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021arcgo7f (also filed as us6000f9sp). Read Tue, Sep 29, 2026, 8:03 AM UTC.