Alaska earthquakes

M2.3 earthquake 175 km SE of Adak, Alaska

A magnitude 2.3 earthquake struck 175 km SE of Adak, Alaska on Sun, Mar 21, 2021, 4:48 PM HADT (01:48 UTC), 26 km (16 mi) below the surface.

A larger quake followed: M3.8 98 km SSE of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
2.3 (ml), micro
Local time
UTC
2021-03-22 01:48:53 UTC
Depth
25.6 km (15.9 mi), shallow
Epicenter
50.604° N, 175.153° 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
20

Nearby

Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 2.3101 km SE of Adak, Alaska · 2013 days ago · 4 km deep · 81 km away
  2. 2.3182 km SE of Adak, Alaska · 2011 days ago · 2 km deep · 10 km away
  3. 2.1Andreanof Islands, Aleutian Islands, Alaska · 2007 days ago · 15 km deep · 82 km away
  4. 3.7131 km SSW of Atka, Alaska · 2007 days ago · 24 km deep · 58 km away
  5. 2.6127 km SSW of Atka, Alaska · 2007 days ago · 27 km deep · 64 km away
  6. 2.9Andreanof Islands, Aleutian Islands, Alaska · 2007 days ago · 16 km deep · 60 km away
  7. 1.9123 km SSW of Atka, Alaska · 2006 days ago · 16 km deep · 70 km away
  8. 1.681 km SE of Adak, Alaska · 2001 days ago · 25 km deep · 99 km away
  9. 2.7204 km S of Atka, Alaska · 1999 days ago · 10 km deep · 58 km away
  10. 2.8143 km S of Atka, Alaska · 1999 days ago · 10 km deep · 97 km away
  11. 2.0162 km SE of Adak, Alaska · 1998 days ago · 20 km deep · 14 km away
  12. 2.7121 km S of Atka, Alaska · 1997 days ago · 10 km deep · 81 km away
  13. 2.6115 km S of Atka, Alaska · 1997 days ago · 10 km deep · 87 km away
  14. 2.0124 km S of Atka, Alaska · 1988 days ago · 18 km deep · 78 km away
  15. 3.898 km SSE of Adak, Alaska · 1988 days ago · 10 km deep · 79 km away
  16. 1.681 km SE of Adak, Alaska · 1987 days ago · 25 km deep · 97 km away
  17. 1.9121 km SSW of Atka, Alaska · 1987 days ago · 8 km deep · 69 km away
  18. 2.5176 km SSE of Adak, Alaska · 1985 days ago · 10 km deep · 13 km away
  19. 3.7106 km ESE of Adak, Alaska · 1983 days ago · 35 km deep · 98 km away
  20. 1.8119 km SSW of Atka, Alaska · 1977 days ago · 7 km deep · 73 km away

Before

  1. 3.192 km SE of Adak, Alaska · 2017 days ago · 32 km deep · 91 km away
  2. 2.5104 km ESE of Adak, Alaska · 2018 days ago · 35 km deep · 96 km away
  3. 2.6181 km S of Atka, Alaska · 2021 days ago · 25 km deep · 32 km away
  4. 2.5165 km SSE of Adak, Alaska · 2026 days ago · 10 km deep · 70 km away
  5. 1.682 km SE of Adak, Alaska · 2031 days ago · 25 km deep · 100 km away
  6. 2.986 km SE of Adak, Alaska · 2035 days ago · 35 km deep · 94 km away
  7. 1.993 km ESE of Adak, Alaska · 2037 days ago · 26 km deep · 97 km away
  8. 2.2128 km S of Atka, Alaska · 2039 days ago · 7 km deep · 79 km away
  9. 2.7105 km ESE of Adak, Alaska · 2043 days ago · 33 km deep · 96 km away
  10. 2.3203 km S of Atka, Alaska · 2045 days ago · 10 km deep · 91 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0213pzey3p. Read Sun, Sep 27, 2026, 5:35 AM UTC.