Alaska earthquakes

M1.5 earthquake 64 km WNW of Tanana, Alaska

A magnitude 1.5 earthquake struck 64 km WNW of Tanana, Alaska on Wed, Jul 21, 2021, 3:56 PM AKDT (23:56 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.3 75 km NE of Ruby, 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), micro
Local time
UTC
2021-07-21 23:56:09 UTC
Depth
10.3 km (6.4 mi), shallow
Epicenter
65.410° N, 153.332° 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
22

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 4 in the 30 days before it.

After

  1. 2.577 km NE of Ruby, Alaska · 1889 days ago · 5 km deep · 49 km away
  2. 1.675 km NE of Ruby, Alaska · 1889 days ago · 4 km deep · 51 km away
  3. 3.375 km NE of Ruby, Alaska · 1889 days ago · 9 km deep · 51 km away
  4. 1.676 km NE of Ruby, Alaska · 1889 days ago · 7 km deep · 51 km away
  5. 1.576 km NE of Ruby, Alaska · 1888 days ago · 1 km deep · 50 km away
  6. 1.653 km SW of Hughes, Alaska · 1888 days ago · 4 km deep · 95 km away
  7. 2.266 km WNW of Tanana, Alaska · 1884 days ago · 12 km deep · 2 km away
  8. 1.525 km SSE of Tanana, Alaska · 1882 days ago · 6 km deep · 85 km away
  9. 1.638 km SSW of Tanana, Alaska · 1865 days ago · 8 km deep · 73 km away
  10. 2.868 km SW of Tanana, Alaska · 1865 days ago · 6 km deep · 81 km away
  11. 1.945 km NW of Tanana, Alaska · 1863 days ago · 20 km deep · 34 km away
  12. 1.565 km WNW of Tanana, Alaska · 1858 days ago · 14 km deep · 2 km away
  13. 1.862 km N of Tanana, Alaska · 1857 days ago · 18 km deep · 75 km away
  14. 1.970 km WNW of Rampart, Alaska · 1856 days ago · 13 km deep · 91 km away
  15. 1.665 km N of Tanana, Alaska · 1854 days ago · 16 km deep · 76 km away
  16. 2.235 km SSW of Tanana, Alaska · 1853 days ago · 15 km deep · 79 km away
  17. 1.840 km E of Ruby, Alaska · 1851 days ago · 7 km deep · 92 km away
  18. 1.839 km E of Ruby, Alaska · 1849 days ago · 6 km deep · 95 km away
  19. 1.565 km WNW of Tanana, Alaska · 1848 days ago · 7 km deep · 2 km away
  20. 1.665 km WNW of Tanana, Alaska · 1838 days ago · 2 km deep · 8 km away
  21. 1.637 km SE of Tanana, Alaska · 1838 days ago · 4 km deep · 99 km away
  22. 3.078 km S of Hughes, Alaska · 1837 days ago · 8 km deep · 29 km away

Before

  1. 2.6northern Alaska · 1898 days ago · 9 km deep · 1 km away
  2. 1.554 km SSW of Tanana, Alaska · 1909 days ago · 6 km deep · 90 km away
  3. 2.252 km SSW of Tanana, Alaska · 1916 days ago · 11 km deep · 88 km away
  4. 2.318 km WNW of Tanana, Alaska · 1922 days ago · 15 km deep · 46 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0219agl3jd. Read Wed, Sep 30, 2026, 11:03 AM UTC.