Alaska earthquakes

M1.8 earthquake 13 km S of Unalaska, Alaska

A magnitude 1.8 earthquake struck 13 km S of Unalaska, Alaska on Sun, Oct 20, 2019, 12:57 AM AKDT (08:57 UTC), 82 km (51 mi) below the surface.

A larger quake followed: M4.3 52 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
2019-10-20 08:57:05 UTC
Depth
81.9 km (50.9 mi), intermediate-depth
Epicenter
53.758° N, 166.512° 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
25

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 76 in the 60 days after this one and 56 in the 30 days before it.

After

  1. 2.751 km SSE of Akutan, Alaska · 2536 days ago · 55 km deep · 71 km away
  2. 1.580 km SSE of Unalaska, Alaska · 2535 days ago · 20 km deep · 68 km away
  3. 2.822 km SSE of Unalaska, Alaska · 2535 days ago · 78 km deep · 10 km away
  4. 2.152 km SW of Unalaska, Alaska · 2533 days ago · 24 km deep · 45 km away
  5. 2.058 km SSE of Akutan, Alaska · 2533 days ago · 35 km deep · 63 km away
  6. 2.769 km SW of Unalaska, Alaska · 2531 days ago · 13 km deep · 61 km away
  7. 3.183 km SSE of Akutan, Alaska · 2530 days ago · 35 km deep · 97 km away
  8. 2.2111 km SSW of Unalaska, Alaska · 2530 days ago · 73 km deep · 99 km away
  9. 2.753 km SW of Unalaska, Alaska · 2529 days ago · 30 km deep · 45 km away
  10. 2.992 km SSW of Unalaska, Alaska · 2527 days ago · 35 km deep · 82 km away
  11. 2.281 km S of Unalaska, AK · 2526 days ago · 26 km deep · 68 km away
  12. 2.788 km S of Unalaska, Alaska · 2526 days ago · 35 km deep · 76 km away
  13. 1.838 km SE of Unalaska, Alaska · 2525 days ago · 40 km deep · 27 km away
  14. 1.570 km S of Akutan, Alaska · 2525 days ago · 23 km deep · 66 km away
  15. 1.725 km SW of Unalaska, Alaska · 2524 days ago · 99 km deep · 20 km away
  16. 2.963 km SW of Unalaska, Alaska · 2524 days ago · 18 km deep · 56 km away
  17. 2.147 km SSW of Unalaska, Alaska · 2524 days ago · 66 km deep · 37 km away
  18. 1.697 km SW of Unalaska, Alaska · 2524 days ago · 33 km deep · 88 km away
  19. 3.182 km S of Unalaska, Alaska · 2522 days ago · 35 km deep · 69 km away
  20. 1.712 km WNW of Akutan, Alaska · 2520 days ago · 21 km deep · 58 km away
  21. 2.060 km SE of Unalaska, Alaska · 2520 days ago · 34 km deep · 51 km away
  22. 2.175 km SE of Akutan, Alaska · 2520 days ago · 43 km deep · 96 km away
  23. 1.754 km S of Unalaska, Alaska · 2520 days ago · 59 km deep · 41 km away
  24. 1.665 km S of Unalaska, Alaska · 2519 days ago · 48 km deep · 52 km away
  25. 2.158 km SSW of Unalaska, Alaska · 2517 days ago · 38 km deep · 47 km away
  26. 1.624 km SSW of Akutan, Alaska · 2517 days ago · 80 km deep · 42 km away
  27. 1.858 km SE of Unalaska, Alaska · 2516 days ago · 47 km deep · 50 km away
  28. 2.2Fox Islands, Aleutian Islands, Alaska · 2516 days ago · 26 km deep · 74 km away
  29. 2.0100 km ENE of Nikolski, Alaska · 2516 days ago · 32 km deep · 91 km away
  30. 1.761 km WSW of Unalaska, Alaska · 2515 days ago · 13 km deep · 58 km away
  31. 2.934 km S of Akutan, Alaska · 2515 days ago · 69 km deep · 43 km away
  32. 3.127 km SE of Akutan, Alaska · 2515 days ago · 125 km deep · 76 km away
  33. 2.810 km ESE of Akutan, Alaska · 2514 days ago · 98 km deep · 71 km away
  34. 2.655 km S of Unalaska, Alaska · 2514 days ago · 54 km deep · 43 km away
  35. 1.966 km SE of Unalaska, Alaska · 2513 days ago · 47 km deep · 58 km away
  36. 2.265 km SW of Unalaska, Alaska · 2513 days ago · 73 km deep · 58 km away
  37. 2.333 km SW of Unalaska, Alaska · 2513 days ago · 91 km deep · 25 km away
  38. 1.660 km SW of Unalaska, Alaska · 2512 days ago · 9 km deep · 56 km away
  39. 2.910 km SE of Akutan, Alaska · 2512 days ago · 122 km deep · 67 km away
  40. 3.933 km WNW of Dutch Harbor, Alaska · 2512 days ago · 157 km deep · 43 km away
  41. 1.971 km SW of Unalaska, Alaska · 2512 days ago · 16 km deep · 64 km away
  42. 3.460 km SE of Unalaska, Alaska · 2510 days ago · 35 km deep · 50 km away
  43. 1.918 km ESE of Akutan, Alaska · 2510 days ago · 74 km deep · 71 km away
  44. 2.040 km S of Akutan, Alaska · 2510 days ago · 92 km deep · 56 km away
  45. 3.739 km SE of Akutan, Alaska · 2509 days ago · 70 km deep · 72 km away
  46. 1.620 km W of Dutch Harbor, Alaska · 2507 days ago · 6 km deep · 27 km away
  47. 2.881 km SE of Unalaska, Alaska · 2506 days ago · 35 km deep · 73 km away
  48. 3.362 km SE of Unalaska, Alaska · 2506 days ago · 35 km deep · 52 km away
  49. 2.173 km SSE of Akutan, Alaska · 2503 days ago · 26 km deep · 86 km away
  50. 1.874 km SE of Unalaska, Alaska · 2499 days ago · 25 km deep · 65 km away
  51. 3.313 km W of Akutan, Alaska · 2499 days ago · 98 km deep · 54 km away
  52. 2.956 km SSW of Unalaska, Alaska · 2499 days ago · 9 km deep · 45 km away
  53. 3.660 km SSE of Akutan, Alaska · 2498 days ago · 65 km deep · 82 km away
  54. 2.548 km ESE of Akutan, Alaska · 2497 days ago · 36 km deep · 99 km away
  55. 2.276 km SSE of Akutan, Alaska · 2497 days ago · 22 km deep · 81 km away
  56. 3.484 km SSE of Akutan, Alaska · 2497 days ago · 35 km deep · 89 km away
  57. 2.065 km SE of Unalaska, Alaska · 2496 days ago · 26 km deep · 55 km away
  58. 2.388 km SSW of Unalaska, Alaska · 2495 days ago · 26 km deep · 78 km away
  59. 1.955 km S of Unalaska, Alaska · 2494 days ago · 57 km deep · 43 km away
  60. 2.868 km SSW of Unalaska, Alaska · 2494 days ago · 71 km deep · 58 km away

The first 60 of 76.

Before

  1. 1.517 km NE of Dutch Harbor, Alaska · 2537 days ago · 7 km deep · 29 km away
  2. 1.515 km ENE of Unalaska, Alaska · 2539 days ago · 7 km deep · 22 km away
  3. 1.616 km NE of Dutch Harbor, Alaska · 2539 days ago · 8 km deep · 27 km away
  4. 2.011 km N of Dutch Harbor, Alaska · 2539 days ago · 126 km deep · 26 km away
  5. 2.577 km SW of Unalaska, Alaska · 2539 days ago · 10 km deep · 70 km away
  6. 2.2Fox Islands, Aleutian Islands, Alaska · 2541 days ago · 58 km deep · 53 km away
  7. 1.637 km SSW of Unalaska, Alaska · 2543 days ago · 68 km deep · 26 km away
  8. 1.559 km SE of Unalaska, Alaska · 2544 days ago · 50 km deep · 49 km away
  9. 1.925 km SW of Unalaska, Alaska · 2544 days ago · 80 km deep · 18 km away
  10. 1.981 km S of Unalaska, Alaska · 2545 days ago · 26 km deep · 68 km away
  11. 1.6Fox Islands, Aleutian Islands, Alaska · 2545 days ago · 47 km deep · 65 km away
  12. 2.945 km ESE of Akutan, Alaska · 2547 days ago · 74 km deep · 92 km away
  13. 1.779 km SSE of Akutan, Alaska · 2549 days ago · 13 km deep · 74 km away
  14. 1.7Fox Islands, Aleutian Islands, Alaska · 2549 days ago · 34 km deep · 79 km away
  15. 1.833 km E of Akutan, Alaska · 2549 days ago · 80 km deep · 89 km away
  16. 1.663 km SE of Unalaska, Alaska · 2551 days ago · 58 km deep · 55 km away
  17. 2.829 km NNW of Akutan, Alaska · 2551 days ago · 158 km deep · 75 km away
  18. 1.621 km ESE of Unalaska, Alaska · 2552 days ago · 75 km deep · 18 km away
  19. 1.669 km SSE of Unalaska, Alaska · 2552 days ago · 26 km deep · 58 km away
  20. 2.974 km SE of Unalaska, Alaska · 2553 days ago · 26 km deep · 64 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak019dgpkdw7. Read Wed, Sep 30, 2026, 7:51 AM UTC.