Alaska earthquakes

M4.0 earthquake 58 km NNW of Atka, Alaska

A magnitude 4.0 earthquake struck 58 km NNW of Atka, Alaska on Sun, Nov 14, 2021, 11:47 AM HAST (21:47 UTC), 211 km (131 mi) below the surface.

A larger quake followed: M4.2 75 km NE 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
4.0 (mb), light
Local time
UTC
2021-11-14 21:47:18 UTC
Depth
210.7 km (130.9 mi), intermediate-depth
Epicenter
52.705° N, 174.414° 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.

Location uncertainty
About 11.8 km horizontally, 6.8 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
69°
Stations used
90

Nearby

Within 100 km, magnitude 1.5 and up: 24 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 1.773 km WSW of Atka, Alaska · 1773 days ago · 74 km deep · 97 km away
  2. 2.949 km SW of Atka, Alaska · 1773 days ago · 72 km deep · 97 km away
  3. 1.951 km ESE of Atka, Alaska · 1773 days ago · 63 km deep · 95 km away
  4. 1.657 km WSW of Atka, Alaska · 1772 days ago · 70 km deep · 91 km away
  5. 1.817 km SSW of Atka, Alaska · 1771 days ago · 76 km deep · 75 km away
  6. 1.824 km S of Atka, Alaska · 1770 days ago · 61 km deep · 82 km away
  7. 1.915 km SSW of Atka, Alaska · 1767 days ago · 85 km deep · 72 km away
  8. 2.646 km SW of Atka, Alaska · 1761 days ago · 14 km deep · 88 km away
  9. 3.515 km NW of Atka, Alaska · 1757 days ago · 178 km deep · 45 km away
  10. 2.9Andreanof Islands, Aleutian Islands, Alaska · 1756 days ago · 153 km deep · 95 km away
  11. 2.956 km N of Atka, Alaska · 1755 days ago · 179 km deep · 16 km away
  12. 2.07 km E of Atka, Alaska · 1749 days ago · 6 km deep · 60 km away
  13. 1.742 km SW of Atka, Alaska · 1747 days ago · 54 km deep · 89 km away
  14. 3.283 km NNE of Atka, Alaska · 1747 days ago · 17 km deep · 57 km away
  15. 3.123 km S of Atka, Alaska · 1745 days ago · 178 km deep · 82 km away
  16. 2.250 km ESE of Atka, Alaska · 1741 days ago · 62 km deep · 98 km away
  17. 1.927 km SW of Atka, Alaska · 1730 days ago · 65 km deep · 74 km away
  18. 3.485 km NE of Adak, Alaska · 1730 days ago · 189 km deep · 96 km away
  19. 3.536 km WNW of Atka, Alaska · 1730 days ago · 188 km deep · 49 km away
  20. 2.555 km N of Atka, Alaska · 1720 days ago · 130 km deep · 21 km away
  21. 3.278 km NE of Adak, Alaska · 1719 days ago · 183 km deep · 99 km away
  22. 4.275 km NE of Atka, Alaska · 1717 days ago · 187 km deep · 77 km away
  23. 3.518 km NNE of Atka, Alaska · 1716 days ago · 146 km deep · 45 km away
  24. 3.417 km WSW of Atka, Alaska · 1715 days ago · 178 km deep · 62 km away

Before

  1. 2.142 km ESE of Atka, Alaska · 1775 days ago · 15 km deep · 89 km away
  2. 2.034 km WSW of Atka, Alaska · 1776 days ago · 88 km deep · 71 km away
  3. 1.757 km WSW of Atka, Alaska · 1776 days ago · 75 km deep · 84 km away
  4. 1.627 km SW of Atka, Alaska · 1789 days ago · 67 km deep · 78 km away
  5. 1.627 km SW of Atka, Alaska · 1789 days ago · 67 km deep · 78 km away
  6. 3.079 km NE of Atka, Alaska · 1792 days ago · 236 km deep · 63 km away
  7. 2.974 km W of Atka, Alaska · 1793 days ago · 252 km deep · 89 km away
  8. 1.833 km SSW of Atka, Alaska · 1794 days ago · 71 km deep · 87 km away
  9. 2.929 km SSW of Atka, Alaska · 1794 days ago · 10 km deep · 85 km away
  10. 2.469 km WNW of Atka, Alaska · 1797 days ago · 120 km deep · 62 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000fu45 (also filed as ak021em9okhj). Read Thu, Sep 24, 2026, 5:04 AM UTC.