Alaska earthquakes

M1.9 earthquake 103 km SW of Adak, Alaska

A magnitude 1.9 earthquake struck 103 km SW of Adak, Alaska on Sat, Jun 20, 2026, 2:46 PM HADT (23:46 UTC), 21 km (13 mi) below the surface.

A larger quake followed: M4.3 122 km SW 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
1.9 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2026-06-20 23:46:36 UTC
Depth
21.1 km (13.1 mi), shallow
Epicenter
51.257° N, 177.757° 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.

Location uncertainty
About 11.6 km horizontally, 7.0 km in depth
Magnitude uncertainty
±0.10
Station coverage gap
236°, poorly surrounded by stations
Stations used
15

Nearby

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and 126 in the 30 days before it.

After

  1. 2.252 km WSW of Adak, Alaska · 104 days ago · 75 km deep · 53 km away
  2. 2.283 km SSE of Adak, Alaska · 104 days ago · 17 km deep · 97 km away
  3. 2.175 km SSW of Adak, Alaska · 103 days ago · 27 km deep · 54 km away
  4. 2.198 km SW of Adak, Alaska · 103 days ago · 22 km deep · 25 km away
  5. 2.5192 km SSW of Adak, Alaska · 103 days ago · 2 km deep · 96 km away
  6. 2.1127 km WSW of Adak, Alaska · 103 days ago · 10 km deep · 31 km away
  7. 2.3106 km SW of Adak, Alaska · 103 days ago · 15 km deep · 3 km away
  8. 2.2121 km WSW of Adak, Alaska · 103 days ago · 11 km deep · 29 km away
  9. 2.6154 km WSW of Adak, Alaska · 102 days ago · 33 km deep · 71 km away
  10. 2.865 km SSW of Adak, Alaska · 102 days ago · 35 km deep · 52 km away
  11. 2.4116 km WSW of Adak, Alaska · 102 days ago · 11 km deep · 22 km away
  12. 3.0129 km WSW of Adak, Alaska · 102 days ago · 19 km deep · 59 km away
  13. 2.9112 km SW of Adak, Alaska · 102 days ago · 35 km deep · 14 km away
  14. 2.8149 km S of Adak, Alaska · 102 days ago · 12 km deep · 94 km away
  15. 2.781 km SSE of Adak, Alaska · 102 days ago · 15 km deep · 98 km away
  16. 2.679 km SSW of Adak, Alaska · 101 days ago · 19 km deep · 54 km away
  17. 3.048 km S of Adak, Alaska · 101 days ago · 35 km deep · 79 km away
  18. 1.9136 km W of Adak, Alaska · 101 days ago · 87 km deep · 73 km away
  19. 2.196 km SW of Adak, Alaska · 101 days ago · 28 km deep · 26 km away
  20. 2.688 km SSW of Adak, Alaska · 101 days ago · 10 km deep · 53 km away
  21. 1.944 km SSE of Adak, Alaska · 100 days ago · 56 km deep · 93 km away
  22. 3.5117 km SW of Adak, Alaska · 100 days ago · 35 km deep · 17 km away
  23. 2.2120 km SW of Adak, Alaska · 100 days ago · 38 km deep · 20 km away
  24. 2.8117 km WSW of Adak, Alaska · 100 days ago · 35 km deep · 23 km away
  25. 2.245 km SW of Adak, Alaska · 100 days ago · 20 km deep · 60 km away
  26. 2.295 km WSW of Adak, Alaska · 99 days ago · 62 km deep · 25 km away
  27. 2.4136 km WSW of Adak, Alaska · 98 days ago · 13 km deep · 67 km away
  28. 3.544 km S of Adak, Alaska · 98 days ago · 58 km deep · 77 km away
  29. 2.968 km SW of Adak, Alaska · 98 days ago · 35 km deep · 37 km away
  30. 2.7126 km WSW of Adak, Alaska · 98 days ago · 30 km deep · 41 km away
  31. 2.6108 km SW of Adak, Alaska · 98 days ago · 12 km deep · 5 km away
  32. 2.368 km SSE of Adak, Alaska · 97 days ago · 30 km deep · 92 km away
  33. 2.2119 km WSW of Adak, Alaska · 97 days ago · 13 km deep · 36 km away
  34. 2.5126 km WSW of Adak, Alaska · 97 days ago · 9 km deep · 58 km away
  35. 2.181 km SW of Adak, Alaska · 97 days ago · 21 km deep · 24 km away
  36. 2.5168 km W of Adak, Alaska · 97 days ago · 118 km deep · 98 km away
  37. 1.6151 km W of Adak, Alaska · 97 days ago · 13 km deep · 95 km away
  38. 1.6150 km W of Adak, Alaska · 97 days ago · 4 km deep · 94 km away
  39. 2.625 km S of Adak, Alaska · 97 days ago · 61 km deep · 91 km away
  40. 2.2147 km WSW of Adak, Alaska · 97 days ago · 26 km deep · 49 km away
  41. 2.4164 km SW of Adak, Alaska · 96 days ago · 18 km deep · 61 km away
  42. 2.268 km SSE of Adak, Alaska · 96 days ago · 26 km deep · 98 km away
  43. 2.0130 km W of Adak, Alaska · 96 days ago · 192 km deep · 93 km away
  44. 2.1121 km WSW of Adak, Alaska · 96 days ago · 6 km deep · 37 km away
  45. 2.175 km SSW of Adak, Alaska · 96 days ago · 26 km deep · 58 km away
  46. 2.4179 km WSW of Adak, Alaska · 95 days ago · 20 km deep · 82 km away
  47. 2.4176 km WSW of Adak, Alaska · 95 days ago · 24 km deep · 78 km away
  48. 2.6132 km WSW of Adak, Alaska · 95 days ago · 55 km deep · 36 km away
  49. 2.536 km SSE of Adak, Alaska · 95 days ago · 74 km deep · 94 km away
  50. 3.1184 km WSW of Adak, Alaska · 95 days ago · 48 km deep · 96 km away
  51. 2.184 km W of Adak, Alaska · 94 days ago · 14 km deep · 64 km away
  52. 2.789 km W of Adak, Alaska · 94 days ago · 11 km deep · 68 km away
  53. 2.791 km W of Adak, Alaska · 94 days ago · 13 km deep · 64 km away
  54. 2.388 km W of Adak, Alaska · 94 days ago · 6 km deep · 69 km away
  55. 2.789 km W of Adak, Alaska · 94 days ago · 16 km deep · 66 km away
  56. 2.5155 km WSW of Adak, Alaska · 94 days ago · 11 km deep · 74 km away
  57. 1.889 km W of Adak, Alaska · 94 days ago · 12 km deep · 67 km away
  58. 2.687 km W of Adak, Alaska · 94 days ago · 15 km deep · 70 km away
  59. 2.282 km WSW of Adak, Alaska · 94 days ago · 75 km deep · 32 km away
  60. 2.390 km W of Adak, Alaska · 94 days ago · 12 km deep · 66 km away

The first 60 of at least 200.

Before

  1. 1.9115 km WSW of Adak, Alaska · 104 days ago · 15 km deep · 29 km away
  2. 2.3170 km WSW of Adak, Alaska · 104 days ago · 22 km deep · 71 km away
  3. 2.195 km WSW of Adak, Alaska · 104 days ago · 61 km deep · 20 km away
  4. 1.631 km SSW of Adak, Alaska · 105 days ago · 67 km deep · 80 km away
  5. 2.167 km SW of Adak, Alaska · 105 days ago · 91 km deep · 36 km away
  6. 2.149 km SW of Adak, Alaska · 105 days ago · 48 km deep · 56 km away
  7. 1.833 km S of Adak, Alaska · 105 days ago · 61 km deep · 85 km away
  8. 2.279 km SW of Adak, Alaska · 105 days ago · 16 km deep · 25 km away
  9. 2.079 km SW of Adak, Alaska · 106 days ago · 33 km deep · 24 km away
  10. 2.1115 km WSW of Adak, Alaska · 106 days ago · 8 km deep · 29 km away
  11. 2.172 km SW of Adak, Alaska · 106 days ago · 38 km deep · 33 km away
  12. 2.192 km SW of Adak, Alaska · 106 days ago · 21 km deep · 11 km away
  13. 1.955 km SSW of Adak, Alaska · 106 days ago · 27 km deep · 57 km away
  14. 3.1103 km SW of Adak, Alaska · 106 days ago · 35 km deep · 7 km away
  15. 2.3157 km SW of Adak, Alaska · 107 days ago · 25 km deep · 56 km away
  16. 1.9Andreanof Islands, Aleutian Islands, Alaska · 107 days ago · 34 km deep · 66 km away
  17. 1.9129 km WSW of Adak, Alaska · 107 days ago · 7 km deep · 50 km away
  18. 3.764 km WSW of Adak, Alaska · 107 days ago · 73 km deep · 53 km away
  19. 2.063 km S of Adak, Alaska · 107 days ago · 20 km deep · 86 km away
  20. 1.538 km WSW of Adak, Alaska · 107 days ago · 12 km deep · 66 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event aka2026mdvhpc. Read Fri, Oct 2, 2026, 8:39 PM UTC.