Alaska earthquakes

M1.8 earthquake 5 km SW of Salcha, Alaska

A magnitude 1.8 earthquake struck 5 km SW of Salcha, Alaska on Tue, Sep 7, 2021, 9:19 PM AKDT (05:19 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M4.9 9 km NW of Harding-Birch Lakes, Alaska. This one was a foreshock.

Salcha forecastMore in Alaska

Map

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

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The earthquake

Magnitude
1.8 (ml), micro
Local time
UTC
2021-09-08 05:19:04 UTC
Depth
6.7 km (4.2 mi), shallow
Epicenter
64.484° N, 146.965° W
Region
Alaska
Felt reports
3
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

3 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Stations used
54

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 44 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 1.736 km ENE of Ferry, Alaska · 1843 days ago · 13 km deep · 80 km away
  2. 1.612 km E of Fox, Alaska · 1841 days ago · 2 km deep · 57 km away
  3. 1.517 km E of Ferry, Alaska · 1839 days ago · 4 km deep · 100 km away
  4. 4.99 km NW of Harding-Birch Lakes, Alaska · 1839 days ago · 4 km deep · 12 km away · felt by 1,086
  5. 1.99 km NNW of Harding-Birch Lakes, Alaska · 1839 days ago · 4 km deep · 14 km away · felt by 7
  6. 1.57 km NW of Harding-Birch Lakes, Alaska · 1839 days ago · 0 km deep · 14 km away · felt by 4
  7. 1.97 km NNW of Harding-Birch Lakes, Alaska · 1839 days ago · 3 km deep · 15 km away
  8. 1.68 km NNW of Harding-Birch Lakes, Alaska · 1839 days ago · 0 km deep · 15 km away
  9. 2.49 km NW of Harding-Birch Lakes, Alaska · 1839 days ago · 7 km deep · 12 km away · felt by 4
  10. 1.77 km NNW of Harding-Birch Lakes, Alaska · 1838 days ago · 0 km deep · 15 km away · felt by 2
  11. 1.56 km WNW of Harding-Birch Lakes, Alaska · 1838 days ago · 4 km deep · 16 km away
  12. 2.08 km NNW of Harding-Birch Lakes, Alaska · 1838 days ago · 2 km deep · 14 km away · felt by 2
  13. 2.89 km NW of Harding-Birch Lakes, Alaska · 1838 days ago · 6 km deep · 13 km away · felt by 1
  14. 1.99 km NW of Harding-Birch Lakes, Alaska · 1838 days ago · 5 km deep · 13 km away
  15. 1.88 km NW of Harding-Birch Lakes, Alaska · 1837 days ago · 0 km deep · 14 km away
  16. 1.59 km NNW of Harding-Birch Lakes, Alaska · 1837 days ago · 5 km deep · 13 km away
  17. 1.910 km NNW of Harding-Birch Lakes, Alaska · 1837 days ago · 4 km deep · 13 km away
  18. 3.18 km NW of Harding-Birch Lakes, Alaska · 1835 days ago · 8 km deep · 13 km away · felt by 5
  19. 2.049 km ESE of Nenana, Alaska · 1834 days ago · 15 km deep · 58 km away
  20. 2.08 km NW of Harding-Birch Lakes, Alaska · 1829 days ago · 10 km deep · 13 km away
  21. 1.984 km SW of Delta Junction, Alaska · 1829 days ago · 68 km deep · 98 km away
  22. 1.965 km WSW of Delta Junction, Alaska · 1824 days ago · 0 km deep · 82 km away
  23. 1.93 km SSE of Badger, Alaska · 1822 days ago · 13 km deep · 41 km away
  24. 2.482 km ESE of Denali Park, Alaska · 1818 days ago · 13 km deep · 100 km away
  25. 2.383 km E of Denali Park, Alaska · 1818 days ago · 13 km deep · 100 km away
  26. 1.784 km ESE of Denali Park, Alaska · 1818 days ago · 4 km deep · 100 km away
  27. 2.114 km SW of North Pole, Alaska · 1817 days ago · 12 km deep · 34 km away · felt by 2
  28. 1.523 km WSW of Ester, Alaska · 1814 days ago · 8 km deep · 77 km away
  29. 2.014 km SW of North Pole, Alaska · 1813 days ago · 7 km deep · 35 km away · felt by 1
  30. 1.57 km NNW of Harding-Birch Lakes, Alaska · 1803 days ago · 4 km deep · 15 km away
  31. 1.610 km W of Salcha, Alaska · 1802 days ago · 0 km deep · 9 km away
  32. 2.6Central Alaska · 1800 days ago · 8 km deep · 13 km away
  33. 1.543 km SW of Salcha, Alaska · 1799 days ago · 10 km deep · 38 km away
  34. 3.38 km NW of Harding-Birch Lakes, Alaska · 1799 days ago · 8 km deep · 14 km away · felt by 11
  35. 1.814 km WSW of Salcha, Alaska · 1798 days ago · 8 km deep · 11 km away
  36. 1.78 km NW of Harding-Birch Lakes, Alaska · 1796 days ago · 5 km deep · 14 km away
  37. 2.169 km E of Denali Park, Alaska · 1795 days ago · 74 km deep · 99 km away
  38. 2.376 km E of Denali Park, Alaska · 1791 days ago · 80 km deep · 97 km away
  39. 2.210 km NW of Harding-Birch Lakes, Alaska · 1786 days ago · 11 km deep · 12 km away · felt by 1
  40. 3.132 km WSW of Salcha, Alaska · 1786 days ago · 8 km deep · 28 km away · felt by 46
  41. 4.131 km SW of Salcha, Alaska · 1786 days ago · 8 km deep · 26 km away · felt by 179
  42. 1.528 km WSW of Salcha, Alaska · 1786 days ago · 2 km deep · 24 km away
  43. 1.928 km WSW of Salcha, Alaska · 1786 days ago · 11 km deep · 24 km away
  44. 1.58 km NW of Harding-Birch Lakes, Alaska · 1786 days ago · 4 km deep · 14 km away

Before

  1. 1.614 km ENE of Pleasant Valley, Alaska · 1845 days ago · 10 km deep · 53 km away
  2. 1.83 km S of Fox, Alaska · 1857 days ago · 3 km deep · 58 km away
  3. 2.08 km NE of Badger, Alaska · 1861 days ago · 15 km deep · 45 km away · felt by 1
  4. 2.454 km SW of Harding-Birch Lakes, Alaska · 1867 days ago · 10 km deep · 54 km away
  5. 1.848 km E of Anderson, Alaska · 1868 days ago · 14 km deep · 60 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021bj6zcwe (also filed as us7000f94y). Read Sat, Sep 26, 2026, 11:43 PM UTC.