Alaska earthquakes

M4.0 earthquake 81 km S of Atka, Alaska

A magnitude 4.0 earthquake struck 81 km S of Atka, Alaska on Sat, Nov 16, 2019, 2:04 AM HAST (12:04 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M4.4 81 km SE of Atka, 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
4.0 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2019-11-16 12:04:13 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
51.467° N, 174.046° 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
4.0mb, body-waveUSGS National Earthquake Information CenterPreferred · Reviewed · ±0.081 · 41 stations
3.4ML, 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 5.6 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.08
Depth from
Operator assigned
Station coverage gap
209°, poorly surrounded by stations
Stations used
79

Nearby

Within 100 km, magnitude 1.5 and up: 90 in the 60 days after this one and 33 in the 30 days before it.

After

  1. 2.067 km SE of Atka, Alaska · 2512 days ago · 32 km deep · 46 km away
  2. 3.681 km SW of Atka, Alaska · 2511 days ago · 34 km deep · 62 km away
  3. 1.777 km SW of Atka, Alaska · 2511 days ago · 26 km deep · 67 km away
  4. 1.66 km SSW of Atka, Alaska · 2511 days ago · 10 km deep · 76 km away
  5. 1.977 km S of Atka, Alaska · 2511 days ago · 4 km deep · 20 km away
  6. 3.716 km NE of Atka, Alaska · 2510 days ago · 195 km deep · 91 km away
  7. 2.372 km ESE of Atka, Alaska · 2509 days ago · 61 km deep · 85 km away
  8. 1.862 km WSW of Atka, Alaska · 2509 days ago · 57 km deep · 81 km away
  9. 4.381 km SSE of Atka, Alaska · 2508 days ago · 39 km deep · 36 km away
  10. 1.943 km WSW of Atka, Alaska · 2505 days ago · 13 km deep · 79 km away
  11. 2.969 km SSE of Atka, Alaska · 2505 days ago · 29 km deep · 19 km away
  12. 2.5Andreanof Islands, Aleutian Islands, Alaska · 2505 days ago · 10 km deep · 73 km away
  13. 3.0102 km SE of Adak, Alaska · 2504 days ago · 10 km deep · 99 km away
  14. 4.2105 km SE of Adak, Alaska · 2504 days ago · 10 km deep · 99 km away
  15. 2.1100 km SE of Adak, Alaska · 2504 days ago · 26 km deep · 99 km away
  16. 1.8100 km SE of Adak, Alaska · 2504 days ago · 26 km deep · 98 km away
  17. 2.198 km SE of Adak, Alaska · 2504 days ago · 26 km deep · 100 km away
  18. 1.9103 km SE of Adak, Alaska · 2504 days ago · 29 km deep · 99 km away
  19. 1.696 km ESE of Adak, Alaska · 2504 days ago · 22 km deep · 98 km away
  20. 1.881 km WSW of Atka, Alaska · 2504 days ago · 39 km deep · 87 km away
  21. 1.992 km ESE of Adak, Alaska · 2504 days ago · 39 km deep · 98 km away
  22. 1.898 km ESE of Adak, Alaska · 2504 days ago · 31 km deep · 93 km away
  23. 1.796 km ESE of Adak, Alaska · 2504 days ago · 38 km deep · 99 km away
  24. 1.792 km ESE of Adak, Alaska · 2504 days ago · 51 km deep · 97 km away
  25. 1.734 km SW of Atka, Alaska · 2504 days ago · 68 km deep · 62 km away
  26. 2.1Andreanof Islands, Aleutian Islands, Alaska · 2504 days ago · 49 km deep · 100 km away
  27. 4.096 km ESE of Adak, Alaska · 2504 days ago · 35 km deep · 94 km away
  28. 2.0104 km ESE of Adak, Alaska · 2504 days ago · 21 km deep · 86 km away
  29. 2.195 km ESE of Adak, Alaska · 2503 days ago · 48 km deep · 100 km away
  30. 2.7100 km ESE of Adak, Alaska · 2503 days ago · 30 km deep · 94 km away
  31. 2.6108 km SE of Adak, Alaska · 2503 days ago · 10 km deep · 98 km away
  32. 3.674 km SSW of Atka, Alaska · 2503 days ago · 10 km deep · 43 km away
  33. 2.6109 km SE of Adak, Alaska · 2503 days ago · 10 km deep · 100 km away
  34. 1.584 km SW of Atka, Alaska · 2501 days ago · 35 km deep · 86 km away
  35. 2.226 km SE of Atka, Alaska · 2500 days ago · 81 km deep · 66 km away
  36. 2.883 km SSW of Atka, Alaska · 2499 days ago · 35 km deep · 58 km away
  37. 2.638 km SSW of Atka, Alaska · 2499 days ago · 35 km deep · 50 km away
  38. 2.431 km ESE of Atka, Alaska · 2498 days ago · 9 km deep · 74 km away
  39. 1.780 km SW of Atka, Alaska · 2497 days ago · 26 km deep · 71 km away
  40. 2.166 km SW of Atka, Alaska · 2497 days ago · 38 km deep · 58 km away
  41. 2.338 km SW of Atka, Alaska · 2497 days ago · 76 km deep · 66 km away
  42. 3.251 km SSW of Atka, Alaska · 2495 days ago · 60 km deep · 40 km away
  43. 2.252 km WSW of Atka, Alaska · 2495 days ago · 64 km deep · 80 km away
  44. 2.476 km SW of Atka, Alaska · 2493 days ago · 21 km deep · 68 km away
  45. 2.191 km S of Atka, Alaska · 2491 days ago · 13 km deep · 23 km away
  46. 2.779 km SW of Atka, Alaska · 2491 days ago · 27 km deep · 63 km away
  47. 2.531 km SSW of Atka, Alaska · 2490 days ago · 61 km deep · 59 km away
  48. 1.996 km ESE of Adak, Alaska · 2488 days ago · 26 km deep · 88 km away
  49. 2.818 km SSE of Atka, Alaska · 2487 days ago · 211 km deep · 64 km away
  50. 3.593 km S of Atka, Alaska · 2487 days ago · 35 km deep · 17 km away
  51. 2.261 km ESE of Atka, Alaska · 2487 days ago · 74 km deep · 82 km away
  52. 2.277 km S of Atka, Alaska · 2486 days ago · 18 km deep · 23 km away
  53. 1.864 km SSW of Atka, Alaska · 2486 days ago · 41 km deep · 41 km away
  54. 2.0126 km SSW of Atka, Alaska · 2485 days ago · 23 km deep · 78 km away
  55. 2.5126 km SSW of Atka, AK · 2485 days ago · 13 km deep · 76 km away
  56. 1.683 km SW of Atka, Alaska · 2485 days ago · 47 km deep · 68 km away
  57. 1.891 km ESE of Adak, Alaska · 2485 days ago · 29 km deep · 99 km away
  58. 2.068 km ESE of Atka, Alaska · 2485 days ago · 81 km deep · 84 km away
  59. 1.769 km SW of Atka, Alaska · 2484 days ago · 21 km deep · 67 km away
  60. 2.086 km E of Adak, Alaska · 2484 days ago · 59 km deep · 99 km away

The first 60 of 90.

Before

  1. 1.972 km SSW of Atka, Alaska · 2512 days ago · 19 km deep · 38 km away
  2. 1.855 km SW of Atka, Alaska · 2512 days ago · 36 km deep · 55 km away
  3. 1.833 km ENE of Atka, Alaska · 2513 days ago · 20 km deep · 99 km away
  4. 2.3103 km ESE of Atka, Alaska · 2514 days ago · 14 km deep · 88 km away
  5. 1.919 km SSW of Atka, Alaska · 2515 days ago · 11 km deep · 68 km away
  6. 2.074 km SW of Atka, Alaska · 2516 days ago · 39 km deep · 71 km away
  7. 1.864 km SSE of Atka, Alaska · 2517 days ago · 19 km deep · 37 km away
  8. 2.170 km SSE of Atka, Alaska · 2517 days ago · 28 km deep · 23 km away
  9. 3.995 km ESE of Adak, Alaska · 2517 days ago · 51 km deep · 89 km away
  10. 1.753 km SSW of Atka, Alaska · 2518 days ago · 34 km deep · 41 km away
  11. 1.6Andreanof Islands, Aleutian Islands, Alaska · 2518 days ago · 52 km deep · 46 km away
  12. 2.5153 km SSE of Atka, Alaska · 2519 days ago · 10 km deep · 76 km away
  13. 1.617 km ESE of Atka, Alaska · 2520 days ago · 3 km deep · 77 km away
  14. 2.384 km SW of Atka, Alaska · 2521 days ago · 29 km deep · 70 km away
  15. 2.172 km ESE of Atka, Alaska · 2522 days ago · 63 km deep · 79 km away
  16. 1.968 km SW of Atka, Alaska · 2523 days ago · 20 km deep · 68 km away
  17. 2.3110 km SE of Atka, Alaska · 2523 days ago · 23 km deep · 54 km away
  18. 3.929 km E of Atka, Alaska · 2524 days ago · 9 km deep · 84 km away
  19. 2.074 km SW of Atka, Alaska · 2526 days ago · 54 km deep · 83 km away
  20. 2.3155 km S of Atka, Alaska · 2526 days ago · 13 km deep · 73 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us700068tr (also filed as ak019epf55gm). Read Fri, Oct 2, 2026, 6:00 AM UTC.