Alaska earthquakes

M1.9 earthquake 25 km S of Mud Bay, Alaska

A magnitude 1.9 earthquake struck 25 km S of Mud Bay, Alaska on Mon, May 31, 2021, 2:53 PM AKDT (22:53 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.4 30 km SSW of Covenant Life, Alaska. This one was a foreshock.

Haines 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
1.9 (ml), micro
Local time
UTC
2021-05-31 22:53:28 UTC
Depth
10.3 km (6.4 mi), shallow
Epicenter
58.931° N, 135.381° 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
18

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 24 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 3.035 km WSW of Mud Bay, Alaska · 1931 days ago · 1 km deep · 34 km away · felt by 10
  2. 2.164 km SW of Covenant Life, Alaska · 1925 days ago · 6 km deep · 74 km away
  3. 2.023 km ENE of Mosquito Lake, Alaska · 1916 days ago · 1 km deep · 77 km away
  4. 1.647 km ESE of Skagway, Alaska · 1915 days ago · 10 km deep · 71 km away
  5. 2.056 km WSW of Covenant Life, Alaska · 1913 days ago · 6 km deep · 92 km away · felt by 1
  6. 4.430 km SSW of Covenant Life, Alaska · 1909 days ago · 7 km deep · 56 km away · felt by 70
  7. 3.131 km SSW of Covenant Life, Alaska · 1909 days ago · 3 km deep · 53 km away · felt by 4
  8. 2.430 km SSW of Covenant Life, Alaska · 1909 days ago · 5 km deep · 57 km away
  9. 3.530 km SSW of Covenant Life, Alaska · 1909 days ago · 5 km deep · 56 km away · felt by 8
  10. 2.530 km SSW of Covenant Life, Alaska · 1909 days ago · 6 km deep · 57 km away · felt by 1
  11. 1.730 km SSW of Covenant Life, Alaska · 1909 days ago · 4 km deep · 58 km away
  12. 3.232 km SSW of Covenant Life, Alaska · 1909 days ago · 8 km deep · 53 km away · felt by 11
  13. 1.831 km SSW of Covenant Life, Alaska · 1909 days ago · 7 km deep · 55 km away
  14. 2.230 km SSW of Covenant Life, Alaska · 1909 days ago · 4 km deep · 57 km away · felt by 2
  15. 1.629 km SSW of Covenant Life, Alaska · 1909 days ago · 7 km deep · 56 km away
  16. 1.830 km SSW of Covenant Life, Alaska · 1908 days ago · 3 km deep · 57 km away
  17. 1.732 km SSW of Covenant Life, Alaska · 1908 days ago · 4 km deep · 57 km away
  18. 2.029 km SSW of Covenant Life, Alaska · 1906 days ago · 8 km deep · 56 km away
  19. 2.230 km SSW of Covenant Life, Alaska · 1906 days ago · 6 km deep · 57 km away
  20. 1.553 km SW of Covenant Life, Alaska · 1901 days ago · 3 km deep · 73 km away
  21. 2.363 km WSW of Covenant Life, Alaska · 1900 days ago · 14 km deep · 93 km away
  22. 1.758 km NW of Gustavus, Alaska · 1898 days ago · 17 km deep · 57 km away
  23. 1.930 km SSW of Covenant Life, Alaska · 1896 days ago · 8 km deep · 57 km away
  24. 1.731 km SSW of Covenant Life, Alaska · 1892 days ago · 6 km deep · 56 km away

Before

  1. 2.050 km NNW of Gustavus, Alaska · 1948 days ago · 7 km deep · 44 km away
  2. 1.811 km NW of Mosquito Lake, Alaska · 1971 days ago · 9 km deep · 89 km away
  3. 1.629 km SW of Covenant Life, Alaska · 1973 days ago · 0 km deep · 68 km away
  4. 2.050 km SSW of Covenant Life, Alaska · 1975 days ago · 0 km deep · 53 km away
  5. 2.149 km NW of Elfin Cove, Alaska · 1976 days ago · 0 km deep · 97 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0216y3kd0i. Read Tue, Sep 29, 2026, 5:38 PM UTC.