Alaska earthquakes

M1.6 earthquake 102 km E of McCarthy, Alaska

A magnitude 1.6 earthquake struck 102 km E of McCarthy, Alaska on Mon, Sep 20, 2021, 3:25 AM AKDT (11:25 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M3.6 52 km SSW of Alcan Border, Alaska. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
1.6 (ml), micro
Local time
UTC
2021-09-20 11:25:21 UTC
Depth
7.1 km (4.4 mi), shallow
Epicenter
61.577° N, 141.020° 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
38

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 27 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 1.5145 km NNW of Yakutat, Alaska · 1833 days ago · 7 km deep · 92 km away
  2. 1.8Southern Alaska · 1830 days ago · 4 km deep · 16 km away
  3. 1.5128 km E of McCarthy, Alaska · 1827 days ago · 0 km deep · 30 km away
  4. 2.224 km NE of McCarthy, Alaska · 1823 days ago · 7 km deep · 84 km away
  5. 1.730 km NE of McCarthy, Alaska · 1823 days ago · 3 km deep · 78 km away
  6. 2.356 km SSW of Alcan Border, Alaska · 1818 days ago · 4 km deep · 76 km away
  7. 3.652 km SSW of Alcan Border, Alaska · 1818 days ago · 9 km deep · 79 km away · felt by 1
  8. 2.254 km SSW of Alcan Border, Alaska · 1818 days ago · 11 km deep · 77 km away
  9. 1.957 km SSW of Alcan Border, Alaska · 1818 days ago · 5 km deep · 76 km away
  10. 2.155 km SSW of Alcan Border, Alaska · 1818 days ago · 9 km deep · 76 km away
  11. 1.6119 km E of McCarthy, Alaska · 1818 days ago · 0 km deep · 18 km away
  12. 1.525 km NE of McCarthy, Alaska · 1817 days ago · 10 km deep · 83 km away
  13. 1.885 km E of McCarthy, Alaska · 1814 days ago · 4 km deep · 18 km away
  14. 1.8121 km WNW of Haines Junction, Canada · 1814 days ago · 8 km deep · 88 km away
  15. 2.0125 km E of McCarthy, Alaska · 1814 days ago · 1 km deep · 28 km away
  16. 1.990 km E of McCarthy, Alaska · 1811 days ago · 3 km deep · 13 km away
  17. 1.689 km E of McCarthy, Alaska · 1811 days ago · 4 km deep · 13 km away
  18. 1.6150 km WNW of Haines Junction, Canada · 1804 days ago · 10 km deep · 60 km away
  19. 1.537 km NE of McCarthy, Alaska · 1800 days ago · 6 km deep · 81 km away
  20. 2.2152 km WNW of Haines Junction, Canada · 1797 days ago · 13 km deep · 58 km away
  21. 1.667 km SSW of Alcan Border, Alaska · 1794 days ago · 6 km deep · 66 km away
  22. 2.5Southern Yukon Territory, Canada · 1792 days ago · 5 km deep · 59 km away
  23. 1.857 km SSW of Alcan Border, Alaska · 1791 days ago · 3 km deep · 76 km away
  24. 1.6138 km ESE of McCarthy, Alaska · 1790 days ago · 6 km deep · 58 km away
  25. 1.8139 km ESE of McCarthy, Alaska · 1786 days ago · 22 km deep · 58 km away
  26. 1.8139 km ESE of McCarthy, Alaska · 1786 days ago · 20 km deep · 58 km away
  27. 1.6121 km WNW of Haines Junction, Canada · 1776 days ago · 12 km deep · 88 km away

Before

  1. 1.9120 km WNW of Haines Junction, Canada · 1840 days ago · 7 km deep · 89 km away
  2. 1.6118 km E of McCarthy, Alaska · 1841 days ago · 9 km deep · 22 km away
  3. 1.691 km E of McCarthy, Alaska · 1842 days ago · 9 km deep · 11 km away
  4. 1.986 km S of Alcan Border, Alaska · 1844 days ago · 3 km deep · 39 km away
  5. 1.690 km E of McCarthy, Alaska · 1846 days ago · 5 km deep · 12 km away
  6. 1.8108 km E of McCarthy, Alaska · 1853 days ago · 9 km deep · 6 km away
  7. 1.688 km E of McCarthy, Alaska · 1858 days ago · 1 km deep · 14 km away
  8. 1.788 km E of McCarthy, Alaska · 1864 days ago · 11 km deep · 14 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021c351g2w. Read Mon, Sep 28, 2026, 3:59 AM UTC.