Alaska earthquakes

M1.8 earthquake 9 km NE of Chiniak, Alaska

A magnitude 1.8 earthquake struck 9 km NE of Chiniak, Alaska on Thu, Aug 5, 2021, 3:56 AM AKDT (11:56 UTC), 18 km (11 mi) below the surface.

A larger quake followed: M2.3 59 km ENE of Ouzinkie, 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
1.8 (ml), micro
Local time
UTC
2021-08-05 11:56:19 UTC
Depth
18.4 km (11.4 mi), shallow
Epicenter
57.658° N, 152.160° 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
32

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 17 in the 60 days after this one and 18 in the 30 days before it.

After

  1. 1.821 km WSW of Womens Bay, Alaska · 1872 days ago · 47 km deep · 50 km away
  2. 2.359 km ENE of Ouzinkie, Alaska · 1872 days ago · 16 km deep · 58 km away
  3. 1.610 km NNE of Port Lions, Alaska · 1870 days ago · 46 km deep · 50 km away
  4. 1.8Kodiak Island region, Alaska · 1868 days ago · 38 km deep · 92 km away
  5. 1.9Kodiak Island region, Alaska · 1866 days ago · 2 km deep · 88 km away
  6. 1.570 km ENE of Ouzinkie, Alaska · 1862 days ago · 26 km deep · 74 km away
  7. 1.538 km NNE of Aleneva, Alaska · 1859 days ago · 46 km deep · 81 km away
  8. 1.535 km NNE of Aleneva, Alaska · 1859 days ago · 63 km deep · 86 km away
  9. 1.925 km SE of Larsen Bay, Alaska · 1857 days ago · 7 km deep · 99 km away
  10. 1.991 km ENE of Ouzinkie, Alaska · 1856 days ago · 25 km deep · 92 km away
  11. 2.815 km NE of Kodiak, Alaska · 1855 days ago · 42 km deep · 24 km away · felt by 1
  12. 2.114 km ENE of Chiniak, Alaska · 1847 days ago · 9 km deep · 7 km away
  13. 2.492 km ENE of Ouzinkie, Alaska · 1838 days ago · 2 km deep · 94 km away
  14. 2.666 km ENE of Ouzinkie, Alaska · 1837 days ago · 41 km deep · 70 km away
  15. 1.633 km N of Aleneva, Alaska · 1827 days ago · 43 km deep · 89 km away
  16. 2.061 km ENE of Ouzinkie, Alaska · 1824 days ago · 25 km deep · 62 km away
  17. 1.846 km NNE of Ouzinkie, Alaska · 1824 days ago · 66 km deep · 71 km away

Before

  1. 1.713 km NE of Larsen Bay, Alaska · 1876 days ago · 13 km deep · 99 km away
  2. 3.947 km ENE of Kodiak, Alaska · 1878 days ago · 14 km deep · 47 km away · felt by 1
  3. 2.168 km NNE of Ouzinkie, Alaska · 1879 days ago · 45 km deep · 92 km away
  4. 2.130 km ESE of Old Harbor, Alaska · 1881 days ago · 9 km deep · 74 km away
  5. 2.730 km E of Old Harbor, Alaska · 1882 days ago · 10 km deep · 63 km away
  6. 1.918 km NNW of Old Harbor, Alaska · 1887 days ago · 20 km deep · 84 km away
  7. 1.686 km ENE of Ouzinkie, Alaska · 1887 days ago · 25 km deep · 88 km away
  8. 2.198 km ENE of Ouzinkie, Alaska · 1887 days ago · 3 km deep · 99 km away
  9. 1.617 km NNE of Old Harbor, Alaska · 1887 days ago · 43 km deep · 70 km away
  10. 2.047 km ENE of Ouzinkie, Alaska · 1889 days ago · 34 km deep · 50 km away
  11. 3.247 km ENE of Kodiak, Alaska · 1892 days ago · 15 km deep · 46 km away
  12. 1.6104 km ENE of Chiniak, Alaska · 1893 days ago · 17 km deep · 96 km away
  13. 2.088 km ENE of Ouzinkie, Alaska · 1896 days ago · 46 km deep · 84 km away
  14. 1.562 km NE of Ouzinkie, Alaska · 1896 days ago · 8 km deep · 77 km away
  15. 2.142 km W of Port Lions, Alaska · 1896 days ago · 48 km deep · 89 km away
  16. 1.680 km ENE of Ouzinkie, Alaska · 1897 days ago · 26 km deep · 80 km away
  17. 1.874 km ENE of Ouzinkie, Alaska · 1898 days ago · 28 km deep · 76 km away
  18. 2.280 km ENE of Ouzinkie, Alaska · 1902 days ago · 45 km deep · 82 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0219z2i4bs. Read Wed, Sep 23, 2026, 10:46 PM UTC.