Alaska earthquakes

M1.8 earthquake 74 km SW of Unalaska, Alaska

A magnitude 1.8 earthquake struck 74 km SW of Unalaska, Alaska on Fri, Feb 21, 2020, 4:54 PM AKST (01:54 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.8 35 km SE of Unalaska, 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
2020-02-22 01:54:59 UTC
Depth
10.4 km (6.5 mi), shallow
Epicenter
53.423° N, 167.358° 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
22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 42 in the 60 days after this one and 20 in the 30 days before it.

After

  1. 1.874 km WSW of Unalaska, Alaska · 2412 days ago · 6 km deep · 31 km away
  2. 2.571 km SW of Unalaska, Alaska · 2412 days ago · 64 km deep · 14 km away
  3. 1.754 km SW of Unalaska, Alaska · 2409 days ago · 14 km deep · 21 km away
  4. 1.882 km SSW of Unalaska, Alaska · 2408 days ago · 15 km deep · 48 km away
  5. 2.063 km WSW of Unalaska, Alaska · 2408 days ago · 10 km deep · 16 km away
  6. 3.366 km SE of Unalaska, Alaska · 2406 days ago · 41 km deep · 97 km away
  7. 3.668 km SE of Unalaska, Alaska · 2405 days ago · 35 km deep · 96 km away
  8. 2.6140 km S of Unalaska, Alaska · 2403 days ago · 35 km deep · 100 km away
  9. 2.035 km ESE of Unalaska, Alaska · 2402 days ago · 78 km deep · 98 km away
  10. 2.153 km SW of Unalaska, Alaska · 2399 days ago · 16 km deep · 21 km away
  11. 2.576 km SE of Unalaska, Alaska · 2395 days ago · 35 km deep · 100 km away
  12. 3.188 km E of Nikolski, Alaska · 2395 days ago · 35 km deep · 61 km away
  13. 1.633 km ESE of Unalaska, Alaska · 2394 days ago · 29 km deep · 90 km away
  14. 2.976 km S of Unalaska, Alaska · 2392 days ago · 35 km deep · 52 km away
  15. 1.951 km SW of Unalaska, Alaska · 2388 days ago · 13 km deep · 23 km away
  16. 1.761 km SW of Unalaska, Alaska · 2383 days ago · 8 km deep · 15 km away
  17. 1.884 km S of Unalaska, Alaska · 2382 days ago · 19 km deep · 59 km away
  18. 2.074 km E of Nikolski, Alaska · 2379 days ago · 28 km deep · 57 km away
  19. 1.769 km SW of Unalaska, Alaska · 2379 days ago · 17 km deep · 11 km away
  20. 2.531 km SE of Unalaska, Alaska · 2377 days ago · 79 km deep · 83 km away
  21. 2.047 km SE of Unalaska, Alaska · 2376 days ago · 60 km deep · 84 km away
  22. 4.160 km ESE of Nikolski, Alaska · 2376 days ago · 10 km deep · 98 km away
  23. 2.962 km SW of Unalaska, Alaska · 2375 days ago · 10 km deep · 17 km away
  24. 4.835 km SE of Unalaska, Alaska · 2375 days ago · 87 km deep · 79 km away · felt by 6
  25. 1.945 km ESE of Nikolski, Alaska · 2372 days ago · 21 km deep · 100 km away
  26. 1.991 km E of Nikolski, Alaska · 2372 days ago · 45 km deep · 49 km away
  27. 2.845 km SE of Unalaska, Alaska · 2371 days ago · 44 km deep · 82 km away
  28. 2.26 km WSW of Unalaska, Alaska · 2368 days ago · 99 km deep · 68 km away
  29. 3.273 km SW of Unalaska, Alaska · 2366 days ago · 8 km deep · 5 km away
  30. 2.1Fox Islands, Aleutian Islands, Alaska · 2366 days ago · 7 km deep · 18 km away
  31. 1.534 km SE of Unalaska, Alaska · 2366 days ago · 37 km deep · 82 km away
  32. 1.879 km S of Unalaska, Alaska · 2365 days ago · 20 km deep · 61 km away
  33. 3.581 km SW of Unalaska, Alaska · 2363 days ago · 70 km deep · 13 km away
  34. 1.9114 km SSW of Unalaska, Alaska · 2362 days ago · 26 km deep · 62 km away
  35. 2.887 km ENE of Nikolski, Alaska · 2360 days ago · 63 km deep · 26 km away
  36. 1.563 km SE of Unalaska, Alaska · 2359 days ago · 38 km deep · 98 km away
  37. 2.181 km SSW of Unalaska, Alaska · 2358 days ago · 33 km deep · 44 km away
  38. 1.648 km SW of Unalaska, Alaska · 2358 days ago · 14 km deep · 26 km away
  39. 4.427 km S of Unalaska, Alaska · 2358 days ago · 75 km deep · 64 km away
  40. 1.9101 km E of Nikolski, Alaska · 2354 days ago · 12 km deep · 50 km away
  41. 1.676 km SW of Unalaska, Alaska · 2353 days ago · 13 km deep · 5 km away
  42. 1.925 km S of Unalaska, Alaska · 2352 days ago · 80 km deep · 57 km away

Before

  1. 3.159 km S of Unalaska, Alaska · 2414 days ago · 48 km deep · 58 km away
  2. 1.64 km N of Dutch Harbor, Alaska · 2414 days ago · 7 km deep · 77 km away
  3. 1.53 km N of Dutch Harbor, Alaska · 2415 days ago · 6 km deep · 77 km away
  4. 3.097 km S of Unalaska, Alaska · 2415 days ago · 35 km deep · 73 km away
  5. 2.923 km ENE of Nikolski, Alaska · 2419 days ago · 71 km deep · 91 km away
  6. 2.7141 km S of Unalaska, Alaska · 2420 days ago · 10 km deep · 99 km away
  7. 2.573 km WSW of Unalaska, Alaska · 2421 days ago · 102 km deep · 23 km away
  8. 2.639 km W of Dutch Harbor, Alaska · 2422 days ago · 94 km deep · 51 km away
  9. 1.639 km S of Unalaska, Alaska · 2424 days ago · 63 km deep · 54 km away
  10. 2.2134 km ESE of Nikolski, Alaska · 2424 days ago · 36 km deep · 97 km away
  11. 2.770 km SE of Unalaska, Alaska · 2426 days ago · 35 km deep · 97 km away
  12. 2.776 km SSW of Unalaska, Alaska · 2426 days ago · 31 km deep · 43 km away
  13. 3.782 km S of Unalaska, Alaska · 2427 days ago · 35 km deep · 52 km away
  14. 2.252 km SW of Unalaska, Alaska · 2430 days ago · 121 km deep · 22 km away
  15. 3.677 km SSE of Unalaska, Alaska · 2430 days ago · 21 km deep · 87 km away
  16. 3.284 km ESE of Nikolski, Alaska · 2434 days ago · 35 km deep · 74 km away
  17. 2.982 km S of Unalaska, Alaska · 2439 days ago · 35 km deep · 57 km away
  18. 3.045 km ESE of Nikolski, Alaska · 2440 days ago · 35 km deep · 94 km away
  19. 2.956 km SSE of Unalaska, Alaska · 2441 days ago · 61 km deep · 79 km away
  20. 1.6Fox Islands, Aleutian Islands, Alaska · 2442 days ago · 13 km deep · 5 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0202foemo1. Read Wed, Sep 30, 2026, 4:50 AM UTC.