Alaska earthquakes

M1.8 earthquake 13 km NW of Glennallen, Alaska

A magnitude 1.8 earthquake struck 13 km NW of Glennallen, Alaska on Sun, Apr 25, 2021, 2:07 AM AKDT (10:07 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M2.9 Southern 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
1.8 (ml), micro
Local time
UTC
2021-04-25 10:07:17 UTC
Depth
12.6 km (7.8 mi), shallow
Epicenter
62.203° N, 145.708° 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
54

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 15 in the 30 days before it.

After

  1. 2.9Southern Alaska · 1975 days ago · 24 km deep · 78 km away
  2. 2.045 km N of Valdez, Alaska · 1975 days ago · 16 km deep · 85 km away
  3. 1.528 km NNW of Lake Louise, Alaska · 1974 days ago · 50 km deep · 65 km away
  4. 1.636 km NNW of Valdez, Alaska · 1973 days ago · 30 km deep · 96 km away
  5. 1.814 km NW of Glennallen, Alaska · 1972 days ago · 0 km deep · 4 km away
  6. 2.49 km W of Eureka Roadhouse, Alaska · 1969 days ago · 20 km deep · 90 km away
  7. 2.044 km SSE of Nelchina, Alaska · 1966 days ago · 27 km deep · 75 km away
  8. 1.611 km SW of Eureka Roadhouse, Alaska · 1964 days ago · 28 km deep · 92 km away
  9. 1.848 km N of Valdez, Alaska · 1958 days ago · 18 km deep · 81 km away
  10. 2.833 km S of Tolsona, Alaska · 1957 days ago · 34 km deep · 51 km away
  11. 1.548 km SSE of Nelchina, Alaska · 1947 days ago · 40 km deep · 75 km away
  12. 2.843 km N of Valdez, Alaska · 1946 days ago · 22 km deep · 83 km away
  13. 1.947 km N of Valdez, Alaska · 1946 days ago · 22 km deep · 82 km away
  14. 1.625 km NNW of Eureka Roadhouse, Alaska · 1942 days ago · 20 km deep · 82 km away
  15. 2.545 km N of Valdez, Alaska · 1942 days ago · 16 km deep · 82 km away
  16. 1.736 km NNW of Valdez, Alaska · 1940 days ago · 19 km deep · 97 km away
  17. 2.146 km N of Valdez, Alaska · 1935 days ago · 19 km deep · 80 km away
  18. 1.629 km E of Silver Springs, Alaska · 1935 days ago · 75 km deep · 51 km away
  19. 1.648 km SSE of Nelchina, Alaska · 1934 days ago · 22 km deep · 82 km away
  20. 2.642 km N of Valdez, Alaska · 1933 days ago · 16 km deep · 86 km away
  21. 1.947 km N of Valdez, Alaska · 1933 days ago · 27 km deep · 82 km away
  22. 1.643 km NNW of Valdez, Alaska · 1933 days ago · 19 km deep · 98 km away
  23. 2.248 km SSE of Nelchina, Alaska · 1930 days ago · 0 km deep · 76 km away
  24. 1.840 km N of Valdez, Alaska · 1926 days ago · 3 km deep · 85 km away
  25. 1.56 km NNE of Glennallen, Alaska · 1925 days ago · 30 km deep · 13 km away
  26. 1.834 km N of Valdez, Alaska · 1924 days ago · 13 km deep · 93 km away
  27. 1.740 km N of Valdez, Alaska · 1924 days ago · 20 km deep · 87 km away

Before

  1. 2.335 km N of Eureka Roadhouse, Alaska · 1982 days ago · 21 km deep · 82 km away
  2. 2.312 km NW of Glennallen, Alaska · 1982 days ago · 13 km deep · 2 km away
  3. 3.213 km NNW of Glennallen, Alaska · 1982 days ago · 13 km deep · 2 km away · felt by 2
  4. 1.747 km SSE of Nelchina, Alaska · 1984 days ago · 31 km deep · 74 km away
  5. 1.750 km N of Valdez, Alaska · 1988 days ago · 19 km deep · 75 km away
  6. 2.139 km NNW of Valdez, Alaska · 1990 days ago · 16 km deep · 91 km away
  7. 1.644 km SSE of Eureka Roadhouse, Alaska · 1991 days ago · 26 km deep · 88 km away
  8. 2.439 km NNW of Valdez, Alaska · 1992 days ago · 6 km deep · 93 km away
  9. 1.736 km NNW of Eureka Roadhouse, Alaska · 1993 days ago · 19 km deep · 83 km away
  10. 1.933 km N of Valdez, Alaska · 1997 days ago · 15 km deep · 91 km away
  11. 1.747 km S of Nelchina, Alaska · 2000 days ago · 13 km deep · 84 km away
  12. 1.746 km N of Valdez, Alaska · 2004 days ago · 27 km deep · 81 km away
  13. 1.544 km NNW of Valdez, Alaska · 2007 days ago · 33 km deep · 88 km away
  14. 1.646 km NNW of Valdez, Alaska · 2010 days ago · 15 km deep · 90 km away
  15. 2.512 km WSW of Eureka Roadhouse, Alaska · 2011 days ago · 35 km deep · 94 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0215acss99. Read Sun, Sep 27, 2026, 10:02 PM UTC.