Alaska earthquakes

M1.8 earthquake 41 km NE of Adak, Alaska

A magnitude 1.8 earthquake struck 41 km NE of Adak, Alaska on Sat, Apr 4, 2026, 1:23 AM HADT (10:23 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M4.9 43 km E of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
1.8 (ML, local (Richter)), micro
Magnitude from
AV
Local time
UTC
2026-04-04 10:23:53 UTC
Depth
4.2 km (2.6 mi), shallow
Epicenter
52.096° N, 176.141° 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 0.6 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
186°, poorly surrounded by stations
Stations used
7

Nearby

Within 100 km, magnitude 1.5 and up: 119 in the 60 days after this one and 51 in the 30 days before it.

After

  1. 2.043 km SW of Adak, Alaska · 181 days ago · 20 km deep · 86 km away
  2. 2.267 km SSE of Adak, Alaska · 181 days ago · 17 km deep · 83 km away
  3. 2.691 km SW of Atka, Alaska · 180 days ago · 35 km deep · 96 km away
  4. 2.360 km SSW of Adak, Alaska · 180 days ago · 33 km deep · 100 km away
  5. 3.589 km ESE of Adak, Alaska · 180 days ago · 48 km deep · 74 km away
  6. 2.674 km SE of Adak, Alaska · 179 days ago · 18 km deep · 83 km away
  7. 2.672 km SE of Adak, Alaska · 179 days ago · 23 km deep · 80 km away
  8. 4.063 km ENE of Adak, Alaska · 179 days ago · 153 km deep · 27 km away
  9. 3.148 km N of Adak, Alaska · 178 days ago · 247 km deep · 33 km away
  10. 2.584 km E of Adak, Alaska · 177 days ago · 100 km deep · 54 km away
  11. 2.761 km SE of Adak, Alaska · 177 days ago · 35 km deep · 75 km away
  12. 2.772 km SE of Adak, Alaska · 177 days ago · 28 km deep · 78 km away
  13. 3.263 km ESE of Adak, Alaska · 177 days ago · 35 km deep · 62 km away
  14. 2.474 km ESE of Adak, Alaska · 176 days ago · 30 km deep · 71 km away
  15. 1.66 km ENE of Adak, Alaska · 174 days ago · 15 km deep · 35 km away
  16. 2.655 km ESE of Adak, Alaska · 173 days ago · 51 km deep · 54 km away
  17. 2.362 km S of Adak, Alaska · 173 days ago · 20 km deep · 91 km away
  18. 3.344 km SSE of Adak, Alaska · 171 days ago · 34 km deep · 68 km away · felt by 1
  19. 2.464 km SE of Adak, Alaska · 171 days ago · 23 km deep · 78 km away
  20. 2.670 km SE of Adak, Alaska · 170 days ago · 35 km deep · 80 km away
  21. 2.679 km ESE of Adak, Alaska · 169 days ago · 50 km deep · 65 km away
  22. 3.966 km ENE of Adak, Alaska · 168 days ago · 145 km deep · 27 km away
  23. 3.481 km SE of Adak, Alaska · 166 days ago · 35 km deep · 87 km away
  24. 3.139 km SW of Adak, Alaska · 166 days ago · 63 km deep · 80 km away
  25. 2.646 km S of Adak, Alaska · 165 days ago · 39 km deep · 80 km away
  26. 2.878 km SW of Atka, Alaska · 164 days ago · 28 km deep · 98 km away
  27. 3.168 km SE of Adak, Alaska · 164 days ago · 34 km deep · 80 km away
  28. 2.575 km SE of Adak, Alaska · 164 days ago · 26 km deep · 77 km away
  29. 3.087 km SSE of Adak, Alaska · 163 days ago · 10 km deep · 99 km away
  30. 3.451 km WSW of Adak, Alaska · 162 days ago · 87 km deep · 93 km away
  31. 3.793 km ESE of Adak, Alaska · 161 days ago · 40 km deep · 79 km away
  32. 3.458 km SW of Atka, Alaska · 159 days ago · 90 km deep · 88 km away
  33. 3.065 km ESE of Adak, Alaska · 157 days ago · 35 km deep · 63 km away · felt by 1
  34. 2.857 km SSE of Adak, Alaska · 155 days ago · 35 km deep · 82 km away
  35. 2.567 km SE of Adak, Alaska · 155 days ago · 32 km deep · 78 km away
  36. 2.756 km SSE of Adak, Alaska · 155 days ago · 35 km deep · 81 km away
  37. 2.694 km SW of Atka, Alaska · 155 days ago · 35 km deep · 86 km away
  38. 2.567 km SE of Adak, Alaska · 154 days ago · 35 km deep · 75 km away
  39. 2.475 km SSE of Adak, Alaska · 154 days ago · 18 km deep · 88 km away
  40. 2.855 km WSW of Adak, Alaska · 153 days ago · 91 km deep · 96 km away
  41. 2.968 km SE of Adak, Alaska · 153 days ago · 32 km deep · 79 km away
  42. 3.565 km SE of Adak, Alaska · 153 days ago · 35 km deep · 78 km away
  43. 2.554 km SSE of Adak, Alaska · 152 days ago · 22 km deep · 77 km away
  44. 2.453 km S of Adak, Alaska · 152 days ago · 27 km deep · 83 km away
  45. 2.572 km SE of Adak, Alaska · 151 days ago · 19 km deep · 85 km away
  46. 3.398 km ESE of Adak, Alaska · 151 days ago · 35 km deep · 90 km away
  47. 2.6100 km ESE of Adak, Alaska · 151 days ago · 35 km deep · 93 km away
  48. 2.645 km SSW of Adak, Alaska · 150 days ago · 53 km deep · 84 km away
  49. 2.975 km ENE of Adak, Alaska · 149 days ago · 169 km deep · 36 km away
  50. 2.471 km SE of Adak, Alaska · 149 days ago · 26 km deep · 80 km away
  51. 3.142 km SSW of Adak, Alaska · 149 days ago · 62 km deep · 79 km away
  52. 2.056 km SW of Adak, Alaska · 148 days ago · 43 km deep · 97 km away
  53. 2.363 km S of Adak, Alaska · 148 days ago · 23 km deep · 90 km away
  54. 2.116 km E of Adak, Alaska · 148 days ago · 105 km deep · 31 km away
  55. 2.663 km S of Adak, Alaska · 148 days ago · 20 km deep · 97 km away
  56. 2.370 km SE of Adak, Alaska · 148 days ago · 23 km deep · 79 km away
  57. 2.373 km SE of Adak, Alaska · 148 days ago · 19 km deep · 81 km away
  58. 1.855 km WSW of Adak, Alaska · 147 days ago · 16 km deep · 96 km away
  59. 2.150 km SSE of Adak, Alaska · 147 days ago · 35 km deep · 71 km away
  60. 1.856 km WSW of Adak, Alaska · 147 days ago · 16 km deep · 97 km away

The first 60 of 119.

Before

  1. 2.120 km SSW of Adak, Alaska · 181 days ago · 72 km deep · 61 km away
  2. 2.539 km SSW of Adak, Alaska · 183 days ago · 10 km deep · 79 km away
  3. 2.461 km SSE of Adak, Alaska · 183 days ago · 26 km deep · 77 km away
  4. 2.676 km SE of Adak, Alaska · 183 days ago · 35 km deep · 82 km away
  5. 2.348 km SSW of Adak, Alaska · 184 days ago · 35 km deep · 86 km away
  6. 2.674 km SSE of Adak, Alaska · 185 days ago · 35 km deep · 87 km away
  7. 2.264 km S of Adak, Alaska · 185 days ago · 28 km deep · 91 km away
  8. 2.872 km ESE of Adak, Alaska · 186 days ago · 53 km deep · 58 km away
  9. 2.261 km S of Adak, Alaska · 186 days ago · 27 km deep · 93 km away
  10. 1.973 km SSE of Adak, Alaska · 186 days ago · 14 km deep · 86 km away
  11. 2.460 km ESE of Adak, Alaska · 186 days ago · 60 km deep · 56 km away
  12. 2.272 km SSE of Adak, Alaska · 187 days ago · 19 km deep · 92 km away
  13. 2.371 km SE of Adak, Alaska · 187 days ago · 19 km deep · 80 km away
  14. 2.560 km SE of Adak, Alaska · 188 days ago · 36 km deep · 64 km away
  15. 2.468 km SE of Adak, Alaska · 189 days ago · 22 km deep · 79 km away
  16. 3.759 km S of Adak, Alaska · 189 days ago · 35 km deep · 94 km away
  17. 2.466 km SE of Adak, Alaska · 190 days ago · 35 km deep · 74 km away
  18. 1.922 km S of Adak, Alaska · 191 days ago · 75 km deep · 59 km away
  19. 2.270 km SSE of Adak, Alaska · 191 days ago · 25 km deep · 86 km away
  20. 2.573 km SSE of Adak, Alaska · 192 days ago · 35 km deep · 93 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event av94128063. Read Fri, Oct 2, 2026, 2:45 PM UTC.