Alaska earthquakes

M2.0 earthquake 193 km S of Atka, Alaska

A magnitude 2.0 earthquake struck 193 km S of Atka, Alaska on Wed, Aug 18, 2021, 4:08 AM HADT (13:08 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M2.9 183 km SSE of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude
2.0 (ml), micro
Local time
UTC
2021-08-18 13:08:39 UTC
Depth
9.5 km (5.9 mi), shallow
Epicenter
50.482° N, 173.709° 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

Nearby

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

After

  1. 2.2103 km S of Atka, Alaska · 1865 days ago · 29 km deep · 92 km away
  2. 2.8197 km SE of Atka, Alaska · 1864 days ago · 10 km deep · 89 km away
  3. 2.5102 km SSE of Atka, Alaska · 1863 days ago · 10 km deep · 94 km away
  4. 2.0163 km SE of Atka, Alaska · 1860 days ago · 20 km deep · 99 km away
  5. 2.1165 km SSE of Atka, Alaska · 1858 days ago · 11 km deep · 31 km away
  6. 2.2187 km SSW of Atka, Alaska · 1855 days ago · 24 km deep · 80 km away
  7. 2.1178 km S of Atka, Alaska · 1854 days ago · 7 km deep · 18 km away
  8. 2.7188 km S of Atka, Alaska · 1853 days ago · 10 km deep · 20 km away
  9. 2.2180 km SSE of Atka, Alaska · 1850 days ago · 22 km deep · 51 km away
  10. 2.8182 km SE of Adak, Alaska · 1849 days ago · 29 km deep · 99 km away
  11. 1.7109 km S of Atka, Alaska · 1845 days ago · 24 km deep · 88 km away
  12. 2.9183 km SSE of Atka, Alaska · 1838 days ago · 21 km deep · 25 km away
  13. 2.796 km SSE of Atka, Alaska · 1833 days ago · 35 km deep · 98 km away

Before

  1. 3.3200 km SSE of Atka, Alaska · 1869 days ago · 10 km deep · 23 km away
  2. 2.6211 km SSE of Atka, Alaska · 1870 days ago · 10 km deep · 68 km away
  3. 2.2187 km SE of Atka, Alaska · 1872 days ago · 3 km deep · 92 km away
  4. 2.0199 km S of Atka, Alaska · 1873 days ago · 9 km deep · 26 km away
  5. 3.0205 km SSE of Atka, Alaska · 1874 days ago · 10 km deep · 26 km away
  6. 2.7173 km SSE of Atka, Alaska · 1876 days ago · 22 km deep · 60 km away
  7. 2.9152 km SSE of Atka, Alaska · 1876 days ago · 10 km deep · 52 km away
  8. 3.0171 km SSE of Atka, Alaska · 1879 days ago · 17 km deep · 53 km away
  9. 2.3161 km SSE of Atka, Alaska · 1879 days ago · 7 km deep · 50 km away
  10. 3.0186 km SSE of Atka, Alaska · 1879 days ago · 10 km deep · 47 km away
  11. 3.1200 km SSE of Atka, Alaska · 1879 days ago · 30 km deep · 55 km away
  12. 2.2155 km SSE of Atka, Alaska · 1879 days ago · 1 km deep · 51 km away
  13. 2.2150 km SSE of Atka, Alaska · 1879 days ago · 15 km deep · 62 km away
  14. 2.3165 km SSE of Atka, Alaska · 1879 days ago · 9 km deep · 47 km away
  15. 1.7160 km SSE of Atka, Alaska · 1879 days ago · 3 km deep · 49 km away
  16. 2.7Andreanof Islands, Aleutian Islands, Alaska · 1879 days ago · 10 km deep · 59 km away
  17. 2.7187 km SSE of Atka, Alaska · 1879 days ago · 10 km deep · 60 km away
  18. 1.5189 km SSE of Atka, Alaska · 1879 days ago · 8 km deep · 62 km away
  19. 2.1165 km SSE of Atka, Alaska · 1880 days ago · 10 km deep · 49 km away
  20. 3.2132 km SE of Atka, Alaska · 1880 days ago · 10 km deep · 97 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021akle9c6. Read Sun, Sep 27, 2026, 6:29 AM UTC.