Alaska earthquakes

M3.6 earthquake 24 km SSE of Adak, Alaska

A magnitude 3.6 earthquake struck 24 km SSE of Adak, Alaska on Sun, Oct 6, 2019, 8:31 AM HADT (17:31 UTC), 67 km (42 mi) below the surface.

A larger quake followed: M6.3 95 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
3.6 (mb, body-wave), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2019-10-06 17:31:48 UTC
Depth
67.4 km (41.9 mi), shallow
Epicenter
51.684° N, 176.444° 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
3.6mb, body-waveUSGS National Earthquake Information CenterPreferred · Reviewed · ±0.157 · 10 stations
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 7.7 km horizontally, 8.7 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
194°, poorly surrounded by stations
Stations used
49

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 77 in the 30 days before it.

After

  1. 1.535 km ESE of Adak, Alaska · 2552 days ago · 72 km deep · 25 km away
  2. 1.576 km WSW of Adak, Alaska · 2552 days ago · 44 km deep · 81 km away
  3. 2.384 km S of Adak, Alaska · 2551 days ago · 25 km deep · 64 km away
  4. 2.165 km SE of Adak, Alaska · 2551 days ago · 23 km deep · 41 km away
  5. 1.844 km ESE of Adak, Alaska · 2551 days ago · 54 km deep · 27 km away
  6. 1.685 km SW of Adak, Alaska · 2551 days ago · 30 km deep · 83 km away
  7. 2.473 km SE of Adak, Alaska · 2550 days ago · 28 km deep · 51 km away
  8. 2.097 km SSE of Adak, Alaska · 2550 days ago · 15 km deep · 73 km away
  9. 2.195 km SW of Adak, Alaska · 2549 days ago · 34 km deep · 98 km away
  10. 1.572 km SW of Adak, Alaska · 2549 days ago · 50 km deep · 75 km away
  11. 1.883 km WSW of Adak, Alaska · 2549 days ago · 31 km deep · 87 km away
  12. 1.940 km SSE of Adak, Alaska · 2548 days ago · 33 km deep · 16 km away
  13. 2.986 km SW of Adak, Alaska · 2546 days ago · 31 km deep · 82 km away
  14. 2.239 km E of Adak, Alaska · 2546 days ago · 159 km deep · 37 km away
  15. 1.663 km S of Adak, Alaska · 2546 days ago · 21 km deep · 42 km away
  16. 1.853 km S of Adak, Alaska · 2545 days ago · 23 km deep · 32 km away
  17. 2.966 km SW of Adak, Alaska · 2545 days ago · 54 km deep · 68 km away
  18. 2.386 km SW of Atka, Alaska · 2542 days ago · 26 km deep · 94 km away
  19. 2.383 km SSE of Adak, Alaska · 2541 days ago · 18 km deep · 60 km away
  20. 1.939 km SSE of Adak, Alaska · 2540 days ago · 48 km deep · 17 km away
  21. 1.778 km SE of Adak, Alaska · 2539 days ago · 26 km deep · 55 km away
  22. 1.760 km SE of Adak, Alaska · 2538 days ago · 34 km deep · 38 km away
  23. 1.770 km ESE of Adak, Alaska · 2538 days ago · 40 km deep · 49 km away
  24. 1.563 km SE of Adak, Alaska · 2538 days ago · 26 km deep · 39 km away
  25. 1.966 km ESE of Adak, Alaska · 2538 days ago · 27 km deep · 48 km away
  26. 1.559 km SE of Adak, Alaska · 2538 days ago · 22 km deep · 35 km away
  27. 3.059 km SE of Adak, Alaska · 2537 days ago · 34 km deep · 35 km away
  28. 1.981 km WSW of Adak, Alaska · 2537 days ago · 31 km deep · 85 km away
  29. 1.577 km SW of Adak, Alaska · 2537 days ago · 45 km deep · 81 km away
  30. 1.681 km SSE of Adak, Alaska · 2536 days ago · 19 km deep · 58 km away
  31. 2.438 km SSE of Adak, Alaska · 2536 days ago · 36 km deep · 13 km away
  32. 2.251 km S of Adak, Alaska · 2535 days ago · 29 km deep · 36 km away
  33. 1.838 km SW of Adak, Alaska · 2534 days ago · 65 km deep · 41 km away
  34. 1.918 km ESE of Adak, Alaska · 2534 days ago · 64 km deep · 15 km away
  35. 1.639 km SW of Adak, Alaska · 2533 days ago · 27 km deep · 42 km away
  36. 1.863 km S of Adak, Alaska · 2533 days ago · 27 km deep · 41 km away
  37. 1.860 km SE of Adak, Alaska · 2530 days ago · 23 km deep · 37 km away
  38. 1.8106 km SE of Adak, Alaska · 2529 days ago · 14 km deep · 81 km away
  39. 1.847 km SSE of Adak, Alaska · 2529 days ago · 37 km deep · 23 km away
  40. 1.974 km SSE of Adak, Alaska · 2529 days ago · 26 km deep · 51 km away
  41. 4.093 km ESE of Adak, Alaska · 2528 days ago · 28 km deep · 73 km away
  42. 2.071 km E of Adak, Alaska · 2526 days ago · 86 km deep · 65 km away
  43. 2.074 km SW of Atka, Alaska · 2526 days ago · 54 km deep · 94 km away
  44. 1.656 km SE of Adak, Alaska · 2524 days ago · 26 km deep · 32 km away
  45. 1.938 km SSE of Adak, Alaska · 2523 days ago · 40 km deep · 14 km away
  46. 2.870 km SE of Adak, Alaska · 2523 days ago · 35 km deep · 45 km away
  47. 2.268 km S of Adak, Alaska · 2523 days ago · 25 km deep · 47 km away
  48. 1.615 km ENE of Adak, Alaska · 2522 days ago · 95 km deep · 29 km away
  49. 2.467 km S of Adak, Alaska · 2522 days ago · 38 km deep · 47 km away
  50. 1.547 km SE of Adak, Alaska · 2522 days ago · 32 km deep · 23 km away
  51. 2.073 km SSE of Adak, Alaska · 2521 days ago · 24 km deep · 50 km away
  52. 2.727 km S of Adak, Alaska · 2521 days ago · 47 km deep · 18 km away
  53. 2.384 km SW of Atka, Alaska · 2521 days ago · 29 km deep · 98 km away
  54. 2.070 km SSW of Adak, Alaska · 2521 days ago · 26 km deep · 60 km away
  55. 3.084 km WSW of Adak, Alaska · 2520 days ago · 46 km deep · 89 km away
  56. 1.878 km WSW of Adak, Alaska · 2520 days ago · 48 km deep · 85 km away
  57. 2.845 km SW of Adak, Alaska · 2520 days ago · 35 km deep · 45 km away
  58. 2.382 km SW of Adak, Alaska · 2520 days ago · 40 km deep · 83 km away
  59. 1.776 km SW of Adak, Alaska · 2519 days ago · 41 km deep · 79 km away
  60. 1.658 km SSW of Adak, Alaska · 2519 days ago · 38 km deep · 45 km away

The first 60 of at least 199.

Before

  1. 1.690 km S of Adak, Alaska · 2553 days ago · 37 km deep · 68 km away
  2. 1.559 km SE of Adak, Alaska · 2553 days ago · 44 km deep · 35 km away
  3. 1.680 km WSW of Adak, Alaska · 2553 days ago · 54 km deep · 84 km away
  4. 2.571 km SE of Adak, Alaska · 2553 days ago · 35 km deep · 49 km away
  5. 2.1104 km SW of Adak, Alaska · 2554 days ago · 33 km deep · 100 km away
  6. 2.560 km NE of Adak, Alaska · 2554 days ago · 162 km deep · 73 km away
  7. 1.5Andreanof Islands, Aleutian Islands, Alaska · 2556 days ago · 89 km deep · 76 km away
  8. 1.690 km SW of Adak, Alaska · 2556 days ago · 44 km deep · 90 km away
  9. 1.648 km S of Adak, Alaska · 2556 days ago · 26 km deep · 33 km away
  10. 1.952 km ENE of Adak, Alaska · 2557 days ago · 120 km deep · 58 km away
  11. 1.860 km SE of Adak, Alaska · 2557 days ago · 32 km deep · 36 km away
  12. 1.857 km ESE of Adak, Alaska · 2557 days ago · 43 km deep · 40 km away
  13. 1.856 km SSW of Adak, Alaska · 2557 days ago · 51 km deep · 43 km away
  14. 1.775 km SW of Adak, Alaska · 2558 days ago · 26 km deep · 78 km away
  15. 1.779 km WSW of Adak, Alaska · 2558 days ago · 75 km deep · 90 km away
  16. 2.044 km ESE of Adak, Alaska · 2558 days ago · 60 km deep · 32 km away
  17. 1.63 km E of Adak, Alaska · 2559 days ago · 99 km deep · 23 km away
  18. 1.671 km SSW of Adak, Alaska · 2559 days ago · 30 km deep · 62 km away
  19. 2.7Andreanof Islands, Aleutian Islands, Alaska · 2559 days ago · 35 km deep · 45 km away
  20. 2.455 km SE of Adak, Alaska · 2559 days ago · 22 km deep · 32 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us600064qp (also filed as ak019ctp8y21). Read Fri, Oct 2, 2026, 3:51 AM UTC.