Alaska earthquakes

M2.8 earthquake 74 km ENE of Adak, Alaska

A magnitude 2.8 earthquake struck 74 km ENE of Adak, Alaska on Sun, Aug 3, 2025, 6:37 PM HADT (03:37 UTC), 179 km (111 mi) below the surface.

A larger quake followed: M4.1 78 km WNW of Atka, 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
2.8 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2025-08-04 03:37:48 UTC
Depth
178.7 km (111.0 mi), intermediate-depth
Epicenter
52.190° N, 175.680° 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
2.8ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.097 · 14 stations
2.4ML, 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 14.6 km horizontally, 5.6 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
179°
Stations used
15

Nearby

Within 100 km, magnitude 1.5 and up: 91 in the 60 days after this one and 78 in the 30 days before it.

After

  1. 2.177 km WNW of Atka, Alaska · 424 days ago · 133 km deep · 30 km away
  2. 1.615 km W of Atka, Alaska · 424 days ago · 9 km deep · 86 km away
  3. 2.550 km SE of Adak, Alaska · 423 days ago · 35 km deep · 76 km away
  4. 1.612 km NE of Adak, Alaska · 423 days ago · 84 km deep · 62 km away
  5. 2.093 km SE of Adak, Alaska · 423 days ago · 25 km deep · 97 km away
  6. 1.691 km ESE of Adak, Alaska · 423 days ago · 26 km deep · 78 km away
  7. 1.961 km SE of Adak, Alaska · 423 days ago · 26 km deep · 90 km away
  8. 1.568 km ENE of Adak, Alaska · 422 days ago · 18 km deep · 11 km away
  9. 1.854 km SSE of Adak, Alaska · 421 days ago · 26 km deep · 90 km away
  10. 1.962 km SE of Adak, Alaska · 421 days ago · 26 km deep · 81 km away
  11. 2.793 km SW of Atka, Alaska · 421 days ago · 35 km deep · 72 km away
  12. 1.961 km SE of Adak, Alaska · 420 days ago · 23 km deep · 90 km away
  13. 1.813 km SW of Adak, Alaska · 419 days ago · 76 km deep · 88 km away
  14. 2.287 km N of Adak, Alaska · 419 days ago · 165 km deep · 85 km away
  15. 1.735 km ENE of Adak, Alaska · 418 days ago · 107 km deep · 39 km away
  16. 1.740 km SSE of Adak, Alaska · 418 days ago · 31 km deep · 85 km away
  17. 1.955 km SE of Adak, Alaska · 418 days ago · 26 km deep · 84 km away
  18. 1.513 km SSE of Adak, Alaska · 418 days ago · 81 km deep · 77 km away
  19. 2.612 km NW of Atka, Alaska · 418 days ago · 164 km deep · 93 km away
  20. 3.752 km SSE of Adak, Alaska · 417 days ago · 35 km deep · 92 km away
  21. 2.266 km SSW of Atka, Alaska · 417 days ago · 22 km deep · 89 km away
  22. 2.580 km SW of Atka, Alaska · 417 days ago · 35 km deep · 83 km away
  23. 2.694 km SW of Atka, Alaska · 417 days ago · 35 km deep · 73 km away
  24. 3.161 km NE of Adak, Alaska · 417 days ago · 202 km deep · 26 km away
  25. 2.068 km SE of Adak, Alaska · 416 days ago · 38 km deep · 77 km away
  26. 1.955 km SSE of Adak, Alaska · 416 days ago · 27 km deep · 95 km away
  27. 1.718 km E of Adak, Alaska · 415 days ago · 90 km deep · 60 km away
  28. 1.663 km SE of Adak, Alaska · 415 days ago · 25 km deep · 82 km away
  29. 1.741 km W of Atka, Alaska · 415 days ago · 99 km deep · 59 km away
  30. 1.765 km ESE of Adak, Alaska · 414 days ago · 23 km deep · 71 km away
  31. 1.562 km SE of Adak, Alaska · 414 days ago · 26 km deep · 86 km away
  32. 2.348 km NW of Atka, Alaska · 414 days ago · 190 km deep · 78 km away
  33. 2.038 km NW of Atka, Alaska · 414 days ago · 161 km deep · 78 km away
  34. 1.946 km NE of Adak, Alaska · 414 days ago · 126 km deep · 32 km away
  35. 2.716 km SSE of Adak, Alaska · 414 days ago · 16 km deep · 78 km away
  36. 1.659 km SSE of Adak, Alaska · 412 days ago · 26 km deep · 90 km away
  37. 3.716 km SE of Adak, Alaska · 412 days ago · 100 km deep · 69 km away
  38. 2.948 km ESE of Adak, Alaska · 412 days ago · 63 km deep · 59 km away
  39. 1.964 km NE of Adak, Alaska · 411 days ago · 162 km deep · 31 km away
  40. 1.868 km WSW of Atka, Alaska · 410 days ago · 126 km deep · 39 km away
  41. 1.754 km SW of Atka, Alaska · 410 days ago · 64 km deep · 64 km away
  42. 3.154 km SE of Adak, Alaska · 410 days ago · 35 km deep · 86 km away
  43. 1.862 km SE of Adak, Alaska · 409 days ago · 26 km deep · 79 km away
  44. 1.663 km SE of Adak, Alaska · 409 days ago · 26 km deep · 91 km away
  45. 1.563 km SE of Adak, Alaska · 409 days ago · 26 km deep · 80 km away
  46. 2.798 km ESE of Adak, Alaska · 409 days ago · 35 km deep · 70 km away
  47. 1.853 km SSE of Adak, Alaska · 409 days ago · 24 km deep · 97 km away
  48. 3.164 km SE of Adak, Alaska · 409 days ago · 35 km deep · 84 km away
  49. 1.960 km SE of Adak, Alaska · 408 days ago · 23 km deep · 82 km away
  50. 1.799 km SW of Atka, Alaska · 408 days ago · 26 km deep · 80 km away
  51. 1.957 km WSW of Atka, Alaska · 408 days ago · 69 km deep · 58 km away
  52. 3.069 km SW of Atka, Alaska · 406 days ago · 35 km deep · 75 km away
  53. 1.852 km SSW of Atka, Alaska · 406 days ago · 13 km deep · 94 km away
  54. 2.037 km WSW of Atka, Alaska · 406 days ago · 121 km deep · 71 km away
  55. 2.665 km SSE of Adak, Alaska · 405 days ago · 35 km deep · 95 km away
  56. 3.093 km SW of Atka, Alaska · 405 days ago · 35 km deep · 73 km away
  57. 2.193 km ESE of Adak, Alaska · 405 days ago · 42 km deep · 61 km away
  58. 1.962 km SE of Adak, Alaska · 404 days ago · 23 km deep · 87 km away
  59. 1.962 km SSE of Adak, Alaska · 404 days ago · 24 km deep · 94 km away
  60. 1.964 km SE of Adak, Alaska · 404 days ago · 24 km deep · 93 km away

The first 60 of 91.

Before

  1. 2.795 km SSW of Atka, Alaska · 425 days ago · 35 km deep · 93 km away
  2. 2.658 km ESE of Adak, Alaska · 425 days ago · 44 km deep · 69 km away
  3. 1.963 km SE of Adak, Alaska · 425 days ago · 24 km deep · 77 km away
  4. 2.145 km SW of Atka, Alaska · 425 days ago · 45 km deep · 82 km away
  5. 2.672 km ESE of Adak, Alaska · 427 days ago · 35 km deep · 68 km away
  6. 1.813 km W of Adak, Alaska · 427 days ago · -2 km deep · 87 km away
  7. 1.656 km SSE of Adak, Alaska · 428 days ago · 24 km deep · 89 km away
  8. 1.884 km SW of Atka, Alaska · 428 days ago · 26 km deep · 75 km away
  9. 1.75 km N of Adak, Alaska · 429 days ago · 7 km deep · 72 km away
  10. 1.870 km ENE of Adak, Alaska · 429 days ago · 148 km deep · 8 km away
  11. 1.56 km NE of Adak, Alaska · 431 days ago · 8 km deep · 67 km away
  12. 1.764 km SSE of Adak, Alaska · 431 days ago · 33 km deep · 95 km away
  13. 2.929 km NW of Atka, Alaska · 431 days ago · 160 km deep · 85 km away
  14. 2.551 km NNE of Adak, Alaska · 432 days ago · 226 km deep · 54 km away
  15. 1.634 km SSE of Adak, Alaska · 432 days ago · 51 km deep · 87 km away
  16. 1.942 km NE of Adak, Alaska · 432 days ago · 123 km deep · 33 km away
  17. 2.080 km ENE of Adak, Alaska · 433 days ago · 163 km deep · 8 km away
  18. 1.712 km W of Atka, Alaska · 434 days ago · 8 km deep · 89 km away
  19. 3.115 km WSW of Atka, Alaska · 434 days ago · 8 km deep · 88 km away
  20. 2.174 km SE of Adak, Alaska · 434 days ago · 22 km deep · 83 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000rdw9 (also filed as ak0259xa3as7). Read Fri, Oct 2, 2026, 8:30 AM UTC.