Alaska earthquakes

M2.1 earthquake 43 km SSE of Adak, Alaska

A magnitude 2.1 earthquake struck 43 km SSE of Adak, Alaska on Thu, Jul 20, 2017, 2:46 AM HADT (11:46 UTC), 43 km (26 mi) below the surface.

A larger quake followed: M5.2 27 km ESE of Adak, Alaska. This one was a foreshock.

More in Alaska

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
2.1 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2017-07-20 11:46:41 UTC
Depth
42.5 km (26.4 mi), shallow
Epicenter
51.523° N, 176.355° 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
16

Nearby

Within 100 km, magnitude 1.5 and up: 133 in the 60 days after this one and 63 in the 30 days before it.

After

  1. 1.867 km SE of Adak, Alaska · 3361 days ago · 26 km deep · 35 km away
  2. 1.594 km SW of Adak, Alaska · 3359 days ago · 41 km deep · 90 km away
  3. 1.553 km SE of Adak, Alaska · 3359 days ago · 24 km deep · 13 km away
  4. 1.9127 km SSW of Atka, Alaska · 3358 days ago · 26 km deep · 95 km away
  5. 1.678 km SW of Adak, Alaska · 3358 days ago · 16 km deep · 84 km away
  6. 1.658 km WSW of Adak, Alaska · 3358 days ago · 61 km deep · 72 km away
  7. 1.661 km W of Adak, Alaska · 3358 days ago · 73 km deep · 88 km away
  8. 2.990 km SSE of Adak, Alaska · 3357 days ago · 26 km deep · 48 km away
  9. 1.567 km SSE of Adak, Alaska · 3355 days ago · 19 km deep · 27 km away
  10. 1.549 km SW of Adak, Alaska · 3354 days ago · 40 km deep · 52 km away
  11. 1.956 km SE of Adak, Alaska · 3354 days ago · 22 km deep · 16 km away
  12. 1.958 km SSE of Adak, Alaska · 3354 days ago · 21 km deep · 16 km away
  13. 1.653 km SSE of Adak, Alaska · 3354 days ago · 19 km deep · 11 km away
  14. 1.538 km ESE of Adak, Alaska · 3353 days ago · 61 km deep · 24 km away
  15. 2.253 km S of Adak, Alaska · 3353 days ago · 23 km deep · 24 km away
  16. 1.940 km SSE of Adak, Alaska · 3352 days ago · 22 km deep · 4 km away
  17. 2.022 km WNW of Adak, Alaska · 3352 days ago · 84 km deep · 62 km away
  18. 2.435 km ESE of Adak, Alaska · 3352 days ago · 59 km deep · 26 km away
  19. 1.869 km WSW of Adak, Alaska · 3350 days ago · 33 km deep · 80 km away
  20. 1.984 km WSW of Adak, Alaska · 3350 days ago · 13 km deep · 94 km away
  21. 1.555 km SSW of Adak, Alaska · 3350 days ago · 34 km deep · 38 km away
  22. 1.7103 km ESE of Adak, Alaska · 3350 days ago · 30 km deep · 76 km away
  23. 5.227 km ESE of Adak, Alaska · 3349 days ago · 61 km deep · 33 km away · felt by 2 · tsunami flag
  24. 3.343 km SE of Adak, Alaska · 3349 days ago · 45 km deep · 17 km away
  25. 1.638 km SE of Adak, Alaska · 3349 days ago · 45 km deep · 15 km away
  26. 1.642 km SE of Adak, Alaska · 3349 days ago · 38 km deep · 15 km away
  27. 1.775 km WSW of Adak, Alaska · 3349 days ago · 37 km deep · 85 km away
  28. 1.998 km SW of Adak, Alaska · 3349 days ago · 22 km deep · 90 km away
  29. 2.184 km WSW of Adak, Alaska · 3348 days ago · 13 km deep · 95 km away
  30. 2.152 km SSW of Adak, Alaska · 3348 days ago · 54 km deep · 41 km away
  31. 1.936 km SE of Adak, Alaska · 3347 days ago · 19 km deep · 10 km away
  32. 1.786 km SW of Atka, Alaska · 3346 days ago · 23 km deep · 85 km away
  33. 2.745 km NE of Adak, Alaska · 3346 days ago · 180 km deep · 70 km away
  34. 1.869 km SSW of Adak, Alaska · 3346 days ago · 21 km deep · 55 km away
  35. 2.082 km SW of Adak, Alaska · 3346 days ago · 37 km deep · 76 km away
  36. 1.816 km E of Adak, Alaska · 3345 days ago · 61 km deep · 40 km away
  37. 1.674 km WSW of Adak, Alaska · 3344 days ago · 22 km deep · 84 km away
  38. 1.841 km ENE of Adak, Alaska · 3344 days ago · 7 km deep · 55 km away
  39. 2.882 km ENE of Adak, Alaska · 3344 days ago · 255 km deep · 98 km away
  40. 1.5Andreanof Islands, Aleutian Islands, Alaska · 3343 days ago · 20 km deep · 24 km away
  41. 1.764 km SSW of Adak, Alaska · 3343 days ago · 26 km deep · 51 km away
  42. 1.660 km SE of Adak, Alaska · 3343 days ago · 23 km deep · 24 km away
  43. 1.962 km SW of Adak, Alaska · 3342 days ago · 47 km deep · 72 km away
  44. 1.854 km SSE of Adak, Alaska · 3342 days ago · 24 km deep · 11 km away
  45. 1.681 km WSW of Adak, Alaska · 3341 days ago · 25 km deep · 94 km away
  46. 1.654 km SSE of Adak, Alaska · 3341 days ago · 30 km deep · 12 km away
  47. 3.042 km S of Adak, Alaska · 3341 days ago · 40 km deep · 12 km away
  48. 1.679 km WSW of Adak, Alaska · 3341 days ago · 25 km deep · 93 km away
  49. 1.884 km WSW of Adak, Alaska · 3341 days ago · 13 km deep · 95 km away
  50. 1.693 km SW of Atka, Alaska · 3341 days ago · 47 km deep · 79 km away
  51. 1.781 km SSE of Adak, Alaska · 3341 days ago · 35 km deep · 39 km away
  52. 1.5Andreanof Islands, Aleutian Islands, Alaska · 3341 days ago · 22 km deep · 24 km away
  53. 2.337 km SW of Adak, Alaska · 3340 days ago · 58 km deep · 50 km away
  54. 1.738 km SSE of Adak, Alaska · 3340 days ago · 45 km deep · 5 km away
  55. 1.6Andreanof Islands, Aleutian Islands, Alaska · 3340 days ago · 61 km deep · 71 km away
  56. 1.583 km WSW of Adak, Alaska · 3340 days ago · 24 km deep · 95 km away
  57. 1.5100 km SW of Adak, Alaska · 3339 days ago · 17 km deep · 98 km away
  58. 1.680 km WSW of Adak, Alaska · 3339 days ago · 16 km deep · 92 km away
  59. 1.780 km SW of Adak, Alaska · 3339 days ago · 38 km deep · 78 km away
  60. 1.985 km ENE of Adak, Alaska · 3338 days ago · 102 km deep · 87 km away

The first 60 of 133.

Before

  1. 1.949 km S of Adak, Alaska · 3362 days ago · 37 km deep · 22 km away
  2. 1.854 km SW of Adak, Alaska · 3362 days ago · 38 km deep · 50 km away
  3. 1.870 km SSE of Adak, Alaska · 3362 days ago · 18 km deep · 28 km away
  4. 2.460 km SE of Adak, Alaska · 3366 days ago · 19 km deep · 18 km away
  5. 1.675 km ESE of Adak, Alaska · 3366 days ago · 38 km deep · 45 km away
  6. 1.552 km W of Adak, Alaska · 3367 days ago · 70 km deep · 86 km away
  7. 1.861 km SSE of Adak, Alaska · 3368 days ago · 29 km deep · 23 km away
  8. 3.254 km ESE of Adak, Alaska · 3368 days ago · 47 km deep · 35 km away
  9. 2.5118 km SSW of Atka, Alaska · 3369 days ago · 12 km deep · 98 km away
  10. 3.764 km NE of Adak, Alaska · 3370 days ago · 172 km deep · 92 km away
  11. 1.667 km SE of Adak, Alaska · 3371 days ago · 18 km deep · 28 km away
  12. 1.581 km WSW of Adak, Alaska · 3371 days ago · 39 km deep · 94 km away
  13. 1.967 km SSW of Adak, Alaska · 3372 days ago · 37 km deep · 58 km away
  14. 1.948 km SE of Adak, Alaska · 3372 days ago · 24 km deep · 8 km away
  15. 2.041 km SW of Adak, Alaska · 3373 days ago · 55 km deep · 44 km away
  16. 1.860 km SW of Adak, Alaska · 3374 days ago · 48 km deep · 56 km away
  17. 1.897 km SSW of Adak, Alaska · 3374 days ago · 17 km deep · 70 km away
  18. 1.589 km SW of Atka, Alaska · 3375 days ago · 47 km deep · 84 km away
  19. 1.962 km SSE of Adak, Alaska · 3375 days ago · 19 km deep · 19 km away
  20. 2.459 km SE of Adak, Alaska · 3375 days ago · 24 km deep · 17 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak01798luh2x (also filed as ak16355952). Read Fri, Oct 2, 2026, 8:39 AM UTC.