Alaska earthquakes

M1.8 earthquake 79 km S of Unalaska, Alaska

A magnitude 1.8 earthquake struck 79 km S of Unalaska, Alaska on Wed, Apr 8, 2020, 2:00 PM AKDT (22:00 UTC), 20 km (12 mi) below the surface.

A larger quake followed: M4.4 27 km S of Unalaska, Alaska. This one was a foreshock.

Unalaska 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
2020-04-08 22:00:53 UTC
Depth
19.6 km (12.2 mi), shallow
Epicenter
53.162° N, 166.559° 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
23

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 57 in the 60 days after this one and 27 in the 30 days before it.

After

  1. 3.581 km SW of Unalaska, Alaska · 2363 days ago · 70 km deep · 53 km away
  2. 1.9114 km SSW of Unalaska, Alaska · 2362 days ago · 26 km deep · 45 km away
  3. 2.979 km SE of Unalaska, Alaska · 2360 days ago · 24 km deep · 56 km away
  4. 2.887 km ENE of Nikolski, Alaska · 2360 days ago · 63 km deep · 77 km away
  5. 1.563 km SE of Unalaska, Alaska · 2359 days ago · 38 km deep · 56 km away
  6. 2.181 km SSW of Unalaska, Alaska · 2358 days ago · 33 km deep · 20 km away
  7. 1.648 km SW of Unalaska, Alaska · 2358 days ago · 14 km deep · 52 km away
  8. 4.427 km S of Unalaska, Alaska · 2358 days ago · 75 km deep · 53 km away
  9. 1.9101 km E of Nikolski, Alaska · 2354 days ago · 12 km deep · 57 km away
  10. 1.676 km SW of Unalaska, Alaska · 2353 days ago · 13 km deep · 58 km away
  11. 1.925 km S of Unalaska, Alaska · 2352 days ago · 80 km deep · 55 km away
  12. 1.885 km SSW of Unalaska, Alaska · 2352 days ago · 36 km deep · 26 km away
  13. 1.928 km E of Unalaska, Alaska · 2350 days ago · 77 km deep · 88 km away
  14. 3.1Fox Islands, Aleutian Islands, Alaska · 2347 days ago · 7 km deep · 42 km away
  15. 3.792 km ESE of Nikolski, Alaska · 2347 days ago · 35 km deep · 79 km away
  16. 3.593 km E of Nikolski, Alaska · 2347 days ago · 29 km deep · 66 km away
  17. 3.759 km S of Unalaska, Alaska · 2346 days ago · 95 km deep · 21 km away
  18. 1.849 km S of Akutan, Alaska · 2344 days ago · 50 km deep · 86 km away
  19. 2.785 km SSW of Unalaska, Alaska · 2344 days ago · 35 km deep · 21 km away
  20. 1.535 km SSE of Akutan, Alaska · 2343 days ago · 64 km deep · 100 km away
  21. 1.859 km ENE of Nikolski, Alaska · 2343 days ago · 99 km deep · 97 km away
  22. 1.652 km ESE of Unalaska, Alaska · 2342 days ago · 52 km deep · 69 km away
  23. 2.181 km SSW of Unalaska, Alaska · 2341 days ago · 45 km deep · 22 km away
  24. 2.575 km E of Nikolski, Alaska · 2339 days ago · 34 km deep · 81 km away
  25. 1.9Fox Islands, Aleutian Islands, Alaska · 2332 days ago · 26 km deep · 10 km away
  26. 1.833 km SSE of Akutan, Alaska · 2332 days ago · 62 km deep · 97 km away
  27. 3.877 km E of Nikolski, Alaska · 2331 days ago · 37 km deep · 83 km away
  28. 2.228 km SW of Unalaska, Alaska · 2330 days ago · 112 km deep · 66 km away
  29. 2.080 km SSW of Unalaska, Alaska · 2330 days ago · 78 km deep · 45 km away
  30. 1.864 km SE of Unalaska, Alaska · 2329 days ago · 52 km deep · 50 km away
  31. 1.887 km SSE of Akutan, Alaska · 2329 days ago · 25 km deep · 99 km away
  32. 1.6108 km E of Nikolski, Alaska · 2329 days ago · 20 km deep · 56 km away
  33. 1.679 km S of Unalaska, Alaska · 2328 days ago · 26 km deep · 10 km away
  34. 2.886 km SSE of Unalaska, Alaska · 2328 days ago · 35 km deep · 27 km away
  35. 2.539 km SE of Unalaska, Alaska · 2327 days ago · 39 km deep · 57 km away
  36. 2.0100 km S of Unalaska, Alaska · 2326 days ago · 3 km deep · 22 km away
  37. 1.738 km SSE of Akutan, Alaska · 2325 days ago · 38 km deep · 100 km away
  38. 2.524 km SE of Unalaska, Alaska · 2321 days ago · 75 km deep · 63 km away
  39. 1.659 km SSW of Unalaska, Alaska · 2321 days ago · 51 km deep · 35 km away
  40. 1.8124 km S of Unalaska, Alaska · 2320 days ago · 12 km deep · 47 km away
  41. 1.9122 km SSW of Unalaska, Alaska · 2319 days ago · 5 km deep · 48 km away
  42. 2.918 km N of Dutch Harbor, Alaska · 2315 days ago · 138 km deep · 100 km away
  43. 2.378 km SSW of Unalaska, Alaska · 2314 days ago · 22 km deep · 14 km away
  44. 2.5144 km ESE of Nikolski, Alaska · 2312 days ago · 9 km deep · 70 km away
  45. 3.791 km SSW of Unalaska, Alaska · 2311 days ago · 40 km deep · 32 km away
  46. 2.190 km SSW of Unalaska, Alaska · 2311 days ago · 87 km deep · 40 km away
  47. 1.558 km SE of Unalaska, Alaska · 2311 days ago · 46 km deep · 68 km away
  48. 1.8Fox Islands, Aleutian Islands, Alaska · 2310 days ago · 9 km deep · 51 km away
  49. 1.671 km SSE of Akutan, Alaska · 2310 days ago · 46 km deep · 87 km away
  50. 1.655 km SW of Unalaska, Alaska · 2310 days ago · 7 km deep · 63 km away
  51. 1.973 km SE of Unalaska, Alaska · 2308 days ago · 44 km deep · 57 km away
  52. 1.792 km SW of Unalaska, Alaska · 2308 days ago · 77 km deep · 57 km away
  53. 1.780 km S of Unalaska, Alaska · 2306 days ago · 36 km deep · 8 km away
  54. 1.780 km SSW of Unalaska, Alaska · 2305 days ago · 26 km deep · 18 km away
  55. 2.171 km SSW of Unalaska, Alaska · 2305 days ago · 46 km deep · 23 km away
  56. 1.777 km SSW of Unalaska, Alaska · 2305 days ago · 26 km deep · 20 km away
  57. 2.177 km SSW of Unalaska, Alaska · 2305 days ago · 42 km deep · 21 km away

Before

  1. 2.1Fox Islands, Aleutian Islands, Alaska · 2365 days ago · 72 km deep · 68 km away
  2. 1.534 km SE of Unalaska, Alaska · 2366 days ago · 37 km deep · 60 km away
  3. 2.1Fox Islands, Aleutian Islands, Alaska · 2366 days ago · 7 km deep · 56 km away
  4. 3.273 km SW of Unalaska, Alaska · 2366 days ago · 8 km deep · 65 km away
  5. 2.26 km WSW of Unalaska, Alaska · 2369 days ago · 99 km deep · 76 km away
  6. 2.845 km SE of Unalaska, Alaska · 2371 days ago · 44 km deep · 50 km away
  7. 1.991 km E of Nikolski, Alaska · 2372 days ago · 45 km deep · 66 km away
  8. 1.971 km SE of Unalaska, Alaska · 2374 days ago · 29 km deep · 63 km away
  9. 4.835 km SE of Unalaska, Alaska · 2375 days ago · 87 km deep · 57 km away · felt by 6
  10. 2.962 km SW of Unalaska, Alaska · 2375 days ago · 10 km deep · 46 km away
  11. 2.851 km S of Akutan, Alaska · 2376 days ago · 71 km deep · 79 km away
  12. 2.047 km SE of Unalaska, Alaska · 2376 days ago · 60 km deep · 51 km away
  13. 2.132 km S of Akutan, Alaska · 2377 days ago · 63 km deep · 89 km away
  14. 2.531 km SE of Unalaska, Alaska · 2377 days ago · 79 km deep · 64 km away
  15. 1.769 km SW of Unalaska, Alaska · 2379 days ago · 17 km deep · 68 km away
  16. 2.074 km E of Nikolski, Alaska · 2379 days ago · 28 km deep · 82 km away
  17. 2.985 km SSE of Akutan, Alaska · 2380 days ago · 35 km deep · 91 km away
  18. 2.182 km SSE of Akutan, Alaska · 2381 days ago · 19 km deep · 91 km away
  19. 1.884 km S of Unalaska, Alaska · 2382 days ago · 19 km deep · 7 km away
  20. 1.761 km SW of Unalaska, Alaska · 2383 days ago · 8 km deep · 65 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0204k3b03d. Read Wed, Sep 30, 2026, 5:47 AM UTC.