Alaska earthquakes

M2.2 earthquake 157 km S of Atka, Alaska

A magnitude 2.2 earthquake struck 157 km S of Atka, Alaska on Sun, Dec 20, 2020, 2:46 AM HAST (12:46 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M4.9 91 km S of Atka, Alaska. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.2 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2020-12-20 12:46:47 UTC
Depth
3.2 km (2.0 mi), shallow
Epicenter
50.777° N, 174.159° 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
13

Nearby

Within 100 km, magnitude 1.5 and up: 22 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 2.6180 km SSE of Atka, Alaska · 2103 days ago · 10 km deep · 42 km away
  2. 3.066 km S of Atka, Alaska · 2101 days ago · 20 km deep · 93 km away
  3. 1.979 km SSW of Atka, Alaska · 2101 days ago · 26 km deep · 83 km away
  4. 1.8Andreanof Islands, Aleutian Islands, Alaska · 2095 days ago · 16 km deep · 81 km away
  5. 2.684 km SSE of Atka, Alaska · 2094 days ago · 147 km deep · 85 km away
  6. 2.5115 km SSW of Atka, Alaska · 2094 days ago · 10 km deep · 66 km away
  7. 4.991 km S of Atka, Alaska · 2087 days ago · 19 km deep · 68 km away
  8. 4.0111 km SSE of Atka, Alaska · 2085 days ago · 34 km deep · 59 km away
  9. 2.382 km S of Atka, Alaska · 2085 days ago · 5 km deep · 77 km away
  10. 4.0103 km S of Atka, Alaska · 2085 days ago · 27 km deep · 55 km away
  11. 3.193 km S of Atka, Alaska · 2085 days ago · 24 km deep · 66 km away
  12. 2.067 km S of Atka, Alaska · 2085 days ago · 4 km deep · 91 km away
  13. 2.1140 km SE of Adak, Alaska · 2078 days ago · 18 km deep · 89 km away
  14. 2.078 km S of Atka, Alaska · 2075 days ago · 25 km deep · 80 km away
  15. 2.767 km SSW of Atka, Alaska · 2068 days ago · 35 km deep · 97 km away
  16. 2.2181 km SSE of Atka, Alaska · 2067 days ago · 10 km deep · 53 km away
  17. 3.9193 km S of Atka, Alaska · 2066 days ago · 10 km deep · 47 km away
  18. 3.498 km S of Atka, Alaska · 2060 days ago · 10 km deep · 59 km away
  19. 2.0102 km SSW of Atka, Alaska · 2060 days ago · 25 km deep · 82 km away
  20. 2.8208 km SSW of Atka, Alaska · 2053 days ago · 10 km deep · 66 km away
  21. 2.2162 km SE of Adak, Alaska · 2052 days ago · 5 km deep · 67 km away
  22. 1.884 km S of Atka, Alaska · 2051 days ago · 3 km deep · 74 km away

Before

  1. 2.874 km SSW of Atka, Alaska · 2114 days ago · 35 km deep · 98 km away
  2. 2.098 km S of Atka, Alaska · 2115 days ago · 25 km deep · 60 km away
  3. 2.3152 km SSW of Atka, Alaska · 2116 days ago · 6 km deep · 45 km away
  4. 2.862 km S of Atka, Alaska · 2127 days ago · 35 km deep · 95 km away
  5. 2.0144 km S of Atka, Alaska · 2129 days ago · 19 km deep · 15 km away
  6. 2.0109 km S of Atka, Alaska · 2130 days ago · 65 km deep · 53 km away
  7. 3.1149 km S of Atka, Alaska · 2132 days ago · 22 km deep · 30 km away
  8. 2.8101 km SSE of Atka, Alaska · 2137 days ago · 35 km deep · 89 km away
  9. 3.293 km SSE of Atka, Alaska · 2137 days ago · 35 km deep · 80 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak020gbb7d4y. Read Thu, Oct 1, 2026, 5:40 PM UTC.