Alaska earthquakes

M1.9 earthquake 81 km SW of Tanana, Alaska

A magnitude 1.9 earthquake struck 81 km SW of Tanana, Alaska on Sat, Dec 18, 2021, 3:04 PM AKST (00:04 UTC), 14 km (9 mi) below the surface.

A larger quake followed: M3.3 64 km WNW of Tanana, 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
1.9 (ml), micro
Local time
UTC
2021-12-19 00:04:23 UTC
Depth
14.2 km (8.8 mi), shallow
Epicenter
64.597° N, 153.135° 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
25

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 13 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 1.672 km NNE of Lake Minchumina, Alaska · 1744 days ago · 13 km deep · 64 km away
  2. 1.671 km NNE of Lake Minchumina, Alaska · 1744 days ago · 12 km deep · 66 km away
  3. 1.845 km ENE of Lake Minchumina, Alaska · 1738 days ago · 13 km deep · 96 km away
  4. 3.364 km WNW of Tanana, Alaska · 1735 days ago · 12 km deep · 92 km away
  5. 2.234 km SW of Manley Hot Springs, Alaska · 1735 days ago · 17 km deep · 98 km away
  6. 1.762 km WNW of Tanana, Alaska · 1730 days ago · 14 km deep · 94 km away
  7. 1.661 km WNW of Tanana, Alaska · 1728 days ago · 9 km deep · 88 km away
  8. 2.07 km NW of Tanana, Alaska · 1726 days ago · 13 km deep · 83 km away
  9. 1.850 km SW of Tanana, Alaska · 1724 days ago · 9 km deep · 31 km away
  10. 2.151 km SSW of Tanana, Alaska · 1722 days ago · 15 km deep · 40 km away
  11. 2.165 km S of Tanana, Alaska · 1713 days ago · 11 km deep · 47 km away
  12. 1.560 km NE of Lake Minchumina, Alaska · 1695 days ago · 13 km deep · 97 km away
  13. 1.536 km SSW of Tanana, Alaska · 1691 days ago · 14 km deep · 45 km away

Before

  1. 2.067 km NE of Lake Minchumina, Alaska · 1749 days ago · 19 km deep · 99 km away
  2. 1.870 km NNE of Lake Minchumina, Alaska · 1750 days ago · 10 km deep · 65 km away
  3. 1.669 km NNE of Lake Minchumina, Alaska · 1752 days ago · 14 km deep · 62 km away
  4. 2.464 km WNW of Tanana, Alaska · 1766 days ago · 7 km deep · 90 km away
  5. 1.772 km ENE of Ruby, Alaska · 1769 days ago · 4 km deep · 75 km away
  6. 1.857 km SSW of Manley Hot Springs, Alaska · 1773 days ago · 14 km deep · 88 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021g7sqf3f. Read Wed, Sep 30, 2026, 10:28 PM UTC.