Alaska earthquakes

M3.3 earthquake 81 km SE of Adak, Alaska

A magnitude 3.3 earthquake struck 81 km SE of Adak, Alaska on Fri, Aug 30, 2019, 3:36 PM HADT (00:36 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.0 59 km SE of Adak, Alaska. This one was a foreshock.

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

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The earthquake

Magnitude
3.3 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2019-08-31 00:36:18 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
51.423° N, 175.704° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
3.3ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed
3.3ML, local (Richter)Alaska Earthquake CenterPreliminary

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 3.9 km horizontally, 2.0 km in depth
Depth from
Operator assigned
Station coverage gap
207°, poorly surrounded by stations
Stations used
36

Nearby

Within 100 km, magnitude 1.5 and up: 122 in the 60 days after this one and 53 in the 30 days before it.

After

  1. 2.598 km SW of Atka, Alaska · 2589 days ago · 30 km deep · 37 km away
  2. 2.476 km ENE of Adak, Alaska · 2587 days ago · 145 km deep · 78 km away
  3. 2.783 km SW of Atka, Alaska · 2585 days ago · 26 km deep · 51 km away
  4. 1.559 km SE of Adak, Alaska · 2585 days ago · 26 km deep · 29 km away
  5. 2.049 km ESE of Adak, Alaska · 2585 days ago · 46 km deep · 32 km away
  6. 2.156 km SSW of Adak, Alaska · 2584 days ago · 45 km deep · 77 km away
  7. 1.797 km ESE of Adak, Alaska · 2584 days ago · 35 km deep · 34 km away
  8. 1.633 km E of Adak, Alaska · 2584 days ago · 69 km deep · 56 km away
  9. 1.672 km SSE of Adak, Alaska · 2584 days ago · 26 km deep · 44 km away
  10. 1.611 km NE of Adak, Alaska · 2583 days ago · 104 km deep · 81 km away
  11. 2.130 km SSE of Adak, Alaska · 2583 days ago · 49 km deep · 55 km away
  12. 1.874 km SW of Atka, Alaska · 2582 days ago · 37 km deep · 60 km away
  13. 1.728 km ENE of Adak, Alaska · 2582 days ago · 79 km deep · 73 km away
  14. 1.539 km SSE of Adak, Alaska · 2582 days ago · 35 km deep · 49 km away
  15. 1.555 km S of Adak, Alaska · 2581 days ago · 21 km deep · 62 km away
  16. 2.251 km SW of Atka, Alaska · 2581 days ago · 4 km deep · 85 km away
  17. 1.736 km SW of Adak, Alaska · 2581 days ago · 64 km deep · 97 km away
  18. 1.572 km SSE of Adak, Alaska · 2581 days ago · 20 km deep · 43 km away
  19. 1.571 km SSE of Adak, Alaska · 2581 days ago · 21 km deep · 47 km away
  20. 1.872 km SW of Atka, Alaska · 2580 days ago · 43 km deep · 63 km away
  21. 2.356 km WSW of Atka, Alaska · 2579 days ago · 57 km deep · 80 km away
  22. 2.181 km W of Atka, Alaska · 2579 days ago · 75 km deep · 77 km away
  23. 2.040 km SSW of Adak, Alaska · 2578 days ago · 58 km deep · 84 km away
  24. 2.146 km S of Adak, Alaska · 2578 days ago · 34 km deep · 63 km away
  25. 4.059 km SE of Adak, Alaska · 2577 days ago · 42 km deep · 25 km away
  26. 2.875 km ENE of Adak, Alaska · 2575 days ago · 204 km deep · 82 km away
  27. 1.752 km SSE of Adak, Alaska · 2575 days ago · 28 km deep · 53 km away
  28. 2.2Andreanof Islands, Aleutian Islands, Alaska · 2575 days ago · 58 km deep · 58 km away
  29. 2.184 km S of Atka, Alaska · 2574 days ago · 13 km deep · 95 km away
  30. 2.353 km SW of Adak, Alaska · 2573 days ago · 37 km deep · 95 km away
  31. 1.980 km SE of Adak, Alaska · 2573 days ago · 7 km deep · 1 km away
  32. 2.644 km E of Adak, Alaska · 2573 days ago · 97 km deep · 61 km away
  33. 2.789 km SSE of Adak, Alaska · 2572 days ago · 22 km deep · 44 km away
  34. 2.558 km WSW of Atka, Alaska · 2572 days ago · 80 km deep · 87 km away
  35. 2.129 km SSW of Adak, Alaska · 2571 days ago · 62 km deep · 77 km away
  36. 3.797 km SW of Atka, Alaska · 2571 days ago · 30 km deep · 38 km away
  37. 2.093 km ESE of Adak, Alaska · 2570 days ago · 44 km deep · 41 km away
  38. 2.065 km SE of Adak, Alaska · 2570 days ago · 46 km deep · 19 km away
  39. 1.8102 km SW of Atka, Alaska · 2569 days ago · 20 km deep · 35 km away
  40. 1.665 km SSE of Adak, Alaska · 2568 days ago · 26 km deep · 48 km away
  41. 1.667 km SSE of Adak, Alaska · 2568 days ago · 28 km deep · 52 km away
  42. 1.962 km SSE of Adak, Alaska · 2568 days ago · 30 km deep · 33 km away
  43. 1.885 km E of Adak, Alaska · 2568 days ago · 70 km deep · 62 km away
  44. 2.126 km SSW of Adak, Alaska · 2568 days ago · 58 km deep · 79 km away
  45. 2.568 km SE of Adak, Alaska · 2568 days ago · 35 km deep · 23 km away
  46. 2.338 km S of Adak, Alaska · 2568 days ago · 38 km deep · 67 km away
  47. 2.4Andreanof Islands, Aleutian Islands, Alaska · 2568 days ago · 12 km deep · 48 km away
  48. 2.352 km SSE of Adak, Alaska · 2567 days ago · 21 km deep · 47 km away
  49. 2.519 km ESE of Adak, Alaska · 2567 days ago · 103 km deep · 62 km away
  50. 1.966 km SE of Adak, Alaska · 2566 days ago · 24 km deep · 15 km away
  51. 3.945 km SE of Adak, Alaska · 2565 days ago · 47 km deep · 36 km away
  52. 1.893 km SW of Atka, Alaska · 2564 days ago · 26 km deep · 42 km away
  53. 1.543 km SE of Adak, Alaska · 2564 days ago · 57 km deep · 41 km away
  54. 1.587 km E of Adak, Alaska · 2564 days ago · 62 km deep · 50 km away
  55. 2.399 km SW of Atka, Alaska · 2564 days ago · 26 km deep · 36 km away
  56. 1.945 km S of Adak, Alaska · 2563 days ago · 40 km deep · 64 km away
  57. 1.766 km SSW of Adak, Alaska · 2563 days ago · 28 km deep · 94 km away
  58. 1.939 km S of Adak, Alaska · 2562 days ago · 37 km deep · 60 km away
  59. 2.355 km SSE of Adak, Alaska · 2562 days ago · 16 km deep · 38 km away
  60. 1.657 km ENE of Adak, Alaska · 2561 days ago · 9 km deep · 68 km away

The first 60 of 122.

Before

  1. 1.753 km SSE of Adak, Alaska · 2590 days ago · 28 km deep · 53 km away
  2. 1.984 km ESE of Adak, Alaska · 2590 days ago · 47 km deep · 32 km away
  3. 1.898 km S of Adak, Alaska · 2590 days ago · 42 km deep · 90 km away
  4. 2.361 km WSW of Atka, Alaska · 2590 days ago · 73 km deep · 79 km away
  5. 2.447 km S of Adak, Alaska · 2590 days ago · 35 km deep · 72 km away
  6. 3.551 km S of Adak, Alaska · 2590 days ago · 45 km deep · 71 km away · felt by 1
  7. 1.569 km SSW of Adak, Alaska · 2590 days ago · 26 km deep · 91 km away
  8. 2.264 km WSW of Atka, Alaska · 2591 days ago · 57 km deep · 73 km away
  9. 1.859 km SW of Atka, Alaska · 2592 days ago · 15 km deep · 79 km away
  10. 1.633 km S of Adak, Alaska · 2593 days ago · 39 km deep · 69 km away
  11. 2.172 km SE of Adak, Alaska · 2593 days ago · 35 km deep · 11 km away
  12. 1.967 km SW of Atka, Alaska · 2594 days ago · 25 km deep · 67 km away
  13. 1.870 km SW of Atka, Alaska · 2594 days ago · 22 km deep · 64 km away
  14. 1.655 km SSE of Adak, Alaska · 2594 days ago · 23 km deep · 39 km away
  15. 1.763 km SE of Adak, Alaska · 2594 days ago · 26 km deep · 25 km away
  16. 1.584 km E of Adak, Alaska · 2595 days ago · 48 km deep · 48 km away
  17. 1.869 km SSW of Adak, Alaska · 2596 days ago · 29 km deep · 97 km away
  18. 2.580 km ESE of Adak, Alaska · 2597 days ago · 35 km deep · 32 km away
  19. 1.847 km S of Adak, Alaska · 2599 days ago · 49 km deep · 65 km away
  20. 1.834 km SSE of Adak, Alaska · 2600 days ago · 50 km deep · 50 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70005n2q (also filed as ak019b5vt3dj). Read Fri, Oct 2, 2026, 4:47 AM UTC.