Alaska earthquakes

M2.0 earthquake 183 km S of Adak, Alaska

A magnitude 2.0 earthquake struck 183 km S of Adak, Alaska on Mon, Aug 30, 2021, 7:15 AM HADT (16:15 UTC), 25 km (16 mi) below the surface.

A larger quake followed: M4.5 161 km S of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
2.0 (ml), micro
Local time
UTC
2021-08-30 16:15:10 UTC
Depth
25.4 km (15.8 mi), shallow
Epicenter
50.250° N, 177.072° 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
33

Nearby

Within 100 km, magnitude 1.5 and up: 16 in the 60 days after this one and 14 in the 30 days before it.

After

  1. 1.8147 km S of Adak, Alaska · 1852 days ago · 25 km deep · 59 km away
  2. 1.7111 km S of Adak, Alaska · 1847 days ago · 35 km deep · 72 km away
  3. 2.7105 km SSE of Adak, Alaska · 1846 days ago · 10 km deep · 94 km away
  4. 4.5161 km S of Adak, Alaska · 1839 days ago · 10 km deep · 61 km away
  5. 2.4163 km S of Adak, Alaska · 1839 days ago · 24 km deep · 60 km away
  6. 3.4204 km SSW of Adak, Alaska · 1839 days ago · 10 km deep · 66 km away
  7. 3.1164 km S of Adak, Alaska · 1838 days ago · 10 km deep · 61 km away
  8. 3.1Andreanof Islands, Aleutian Islands, Alaska · 1829 days ago · 10 km deep · 55 km away
  9. 3.9177 km SSW of Adak, Alaska · 1827 days ago · 10 km deep · 71 km away
  10. 2.3179 km SSW of Adak, Alaska · 1825 days ago · 25 km deep · 70 km away
  11. 3.7187 km S of Adak, Alaska · 1817 days ago · 10 km deep · 52 km away
  12. 3.2157 km SW of Adak, Alaska · 1810 days ago · 33 km deep · 94 km away
  13. 1.8Andreanof Islands, Aleutian Islands, Alaska · 1809 days ago · 26 km deep · 88 km away
  14. 2.8188 km S of Adak, Alaska · 1797 days ago · 10 km deep · 66 km away
  15. 3.5237 km SSW of Adak, Alaska · 1796 days ago · 10 km deep · 90 km away
  16. 3.2118 km SSW of Adak, Alaska · 1796 days ago · 33 km deep · 68 km away

Before

  1. 1.6Andreanof Islands, Aleutian Islands, Alaska · 1859 days ago · 15 km deep · 99 km away
  2. 2.687 km S of Adak, Alaska · 1863 days ago · 35 km deep · 96 km away
  3. 2.1186 km SSW of Adak, Alaska · 1864 days ago · 26 km deep · 45 km away
  4. 3.4200 km SSW of Adak, Alaska · 1865 days ago · 10 km deep · 21 km away
  5. 1.7209 km S of Adak, Alaska · 1865 days ago · 21 km deep · 26 km away
  6. 1.9241 km S of Adak, Alaska · 1866 days ago · 12 km deep · 58 km away
  7. 1.5137 km SSW of Adak, Alaska · 1866 days ago · 26 km deep · 80 km away
  8. 1.7102 km SSW of Adak, Alaska · 1869 days ago · 47 km deep · 90 km away
  9. 2.6101 km SSW of Adak, Alaska · 1869 days ago · 24 km deep · 88 km away
  10. 3.2198 km S of Adak, Alaska · 1871 days ago · 10 km deep · 24 km away
  11. 2.1226 km SSW of Adak, Alaska · 1880 days ago · 20 km deep · 64 km away
  12. 1.9180 km S of Adak, Alaska · 1880 days ago · 24 km deep · 58 km away
  13. 2.5168 km SSW of Adak, Alaska · 1884 days ago · 10 km deep · 65 km away
  14. 1.897 km S of Adak, Alaska · 1884 days ago · 26 km deep · 86 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021b4ho5hq. Read Mon, Sep 28, 2026, 9:55 AM UTC.