Alaska earthquakes

M1.9 earthquake 73 km NW of Mosquito Lake, Alaska

A magnitude 1.9 earthquake struck 73 km NW of Mosquito Lake, Alaska on Wed, Aug 11, 2021, 4:00 AM AKDT (12:00 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.6 38 km NNW of Mosquito Lake, 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
1.9 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2021-08-11 12:00:47 UTC
Depth
4.5 km (2.8 mi), shallow
Epicenter
60.014° N, 136.985° 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: 11 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 1.658 km SSE of Haines Junction, Canada · 1877 days ago · 4 km deep · 30 km away
  2. 2.295 km E of Yakutat, Alaska · 1875 days ago · 6 km deep · 71 km away
  3. 2.638 km NNW of Mosquito Lake, Alaska · 1873 days ago · 8 km deep · 37 km away
  4. 1.749 km NW of Mosquito Lake, Alaska · 1871 days ago · 8 km deep · 24 km away
  5. 1.653 km WNW of Mosquito Lake, Alaska · 1870 days ago · 11 km deep · 41 km away
  6. 1.836 km W of Mosquito Lake, Alaska · 1854 days ago · 8 km deep · 58 km away
  7. 2.140 km NW of Mosquito Lake, Alaska · 1852 days ago · 3 km deep · 33 km away
  8. 2.097 km ENE of Yakutat, Alaska · 1848 days ago · 1 km deep · 64 km away
  9. 1.685 km WNW of Mosquito Lake, Alaska · 1847 days ago · 11 km deep · 30 km away
  10. 2.5101 km WSW of Mosquito Lake, Alaska · 1843 days ago · 0 km deep · 90 km away
  11. 1.955 km WSW of Covenant Life, Alaska · 1828 days ago · 9 km deep · 92 km away

Before

  1. 1.684 km NE of Yakutat, Alaska · 1882 days ago · 2 km deep · 88 km away
  2. 1.796 km SSW of Haines Junction, Canada · 1886 days ago · 1 km deep · 58 km away
  3. 2.191 km E of Yakutat, Alaska · 1889 days ago · 2 km deep · 72 km away
  4. 1.821 km SW of Haines Junction, Canada · 1893 days ago · 10 km deep · 82 km away
  5. 2.439 km NW of Mosquito Lake, Alaska · 1896 days ago · 2 km deep · 34 km away
  6. 2.239 km NW of Mosquito Lake, Alaska · 1896 days ago · 9 km deep · 34 km away
  7. 1.851 km NW of Mosquito Lake, Alaska · 1899 days ago · 3 km deep · 22 km away
  8. 2.629 km NW of Mosquito Lake, Alaska · 1899 days ago · 13 km deep · 44 km away · felt by 1

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021a8zzo73. Read Sun, Oct 4, 2026, 8:27 PM UTC.