Alaska earthquakes

M1.8 earthquake 119 km SSW of Atka, Alaska

A magnitude 1.8 earthquake struck 119 km SSW of Atka, Alaska on Wed, Apr 28, 2021, 8:19 PM HADT (05:19 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M3.9 55 km SSE of Atka, Alaska. This one was a foreshock.

More in Alaska

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
1.8 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2021-04-29 05:19:30 UTC
Depth
6.9 km (4.3 mi), shallow
Epicenter
51.255° N, 175.022° 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
21

Nearby

Within 100 km, magnitude 1.5 and up: 24 in the 60 days after this one and 72 in the 30 days before it.

After

  1. 2.363 km S of Atka, Alaska · 1981 days ago · 21 km deep · 71 km away
  2. 3.6100 km SW of Atka, Alaska · 1977 days ago · 35 km deep · 34 km away
  3. 1.849 km SE of Adak, Alaska · 1976 days ago · 30 km deep · 87 km away
  4. 1.599 km SW of Atka, Alaska · 1968 days ago · 26 km deep · 33 km away
  5. 3.199 km ESE of Adak, Alaska · 1967 days ago · 35 km deep · 40 km away
  6. 2.955 km SW of Atka, Alaska · 1967 days ago · 51 km deep · 66 km away
  7. 1.5Andreanof Islands, Aleutian Islands, Alaska · 1966 days ago · 29 km deep · 68 km away
  8. 2.579 km WSW of Atka, Alaska · 1966 days ago · 57 km deep · 63 km away
  9. 1.957 km SSE of Adak, Alaska · 1964 days ago · 26 km deep · 87 km away
  10. 3.955 km SSE of Atka, Alaska · 1959 days ago · 35 km deep · 94 km away
  11. 3.7174 km SE of Adak, Alaska · 1957 days ago · 10 km deep · 65 km away
  12. 2.984 km E of Adak, Alaska · 1955 days ago · 238 km deep · 80 km away
  13. 2.744 km E of Adak, Alaska · 1951 days ago · 69 km deep · 92 km away
  14. 2.039 km ESE of Adak, Alaska · 1950 days ago · 62 km deep · 95 km away
  15. 2.042 km SW of Atka, Alaska · 1949 days ago · 55 km deep · 79 km away
  16. 2.4118 km SSE of Atka, Alaska · 1949 days ago · 37 km deep · 82 km away
  17. 2.6163 km S of Atka, Alaska · 1945 days ago · 27 km deep · 80 km away
  18. 3.2Andreanof Islands, Aleutian Islands, Alaska · 1940 days ago · 35 km deep · 62 km away
  19. 2.873 km ESE of Adak, Alaska · 1938 days ago · 70 km deep · 66 km away
  20. 2.193 km SW of Atka, Alaska · 1934 days ago · 24 km deep · 29 km away
  21. 1.9105 km SSW of Atka, Alaska · 1931 days ago · 64 km deep · 17 km away
  22. 1.694 km ESE of Adak, Alaska · 1931 days ago · 36 km deep · 46 km away
  23. 2.4135 km SSE of Atka, Alaska · 1922 days ago · 32 km deep · 90 km away
  24. 1.862 km E of Adak, Alaska · 1922 days ago · 18 km deep · 93 km away

Before

  1. 2.264 km SSE of Adak, Alaska · 1982 days ago · 23 km deep · 99 km away
  2. 2.869 km ENE of Adak, Alaska · 1983 days ago · 82 km deep · 98 km away
  3. 2.041 km SSE of Adak, Alaska · 1983 days ago · 36 km deep · 99 km away
  4. 1.943 km SSW of Atka, Alaska · 1983 days ago · 44 km deep · 77 km away
  5. 1.860 km SE of Adak, Alaska · 1984 days ago · 26 km deep · 78 km away
  6. 2.057 km SSE of Adak, Alaska · 1986 days ago · 27 km deep · 83 km away
  7. 2.881 km SE of Adak, Alaska · 1986 days ago · 33 km deep · 51 km away
  8. 2.5Andreanof Islands, Aleutian Islands, Alaska · 1986 days ago · 35 km deep · 35 km away
  9. 1.771 km SW of Atka, Alaska · 1986 days ago · 38 km deep · 63 km away
  10. 3.893 km ESE of Adak, Alaska · 1987 days ago · 50 km deep · 51 km away
  11. 1.766 km SW of Atka, Alaska · 1987 days ago · 63 km deep · 63 km away
  12. 3.7106 km ESE of Adak, Alaska · 1988 days ago · 35 km deep · 30 km away
  13. 2.0Andreanof Islands, Aleutian Islands, Alaska · 1989 days ago · 69 km deep · 87 km away
  14. 1.683 km SW of Atka, Alaska · 1989 days ago · 26 km deep · 55 km away
  15. 2.5176 km SSE of Adak, Alaska · 1989 days ago · 10 km deep · 83 km away
  16. 1.861 km SSE of Adak, Alaska · 1990 days ago · 16 km deep · 81 km away
  17. 1.741 km SSE of Adak, Alaska · 1991 days ago · 33 km deep · 98 km away
  18. 1.855 km SSE of Adak, Alaska · 1991 days ago · 21 km deep · 88 km away
  19. 1.9121 km SSW of Atka, Alaska · 1991 days ago · 8 km deep · 5 km away
  20. 2.6102 km ESE of Adak, Alaska · 1991 days ago · 35 km deep · 34 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0215gw1lrt. Read Thu, Oct 1, 2026, 11:27 PM UTC.