Alaska earthquakes

M2.9 earthquake 145 km ESE of Atka, Alaska

A magnitude 2.9 earthquake struck 145 km ESE of Atka, Alaska on Wed, Jun 25, 2025, 8:18 AM HADT (17:18 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M5.0 57 km E 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
2.9 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2025-06-25 17:18:10 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
51.852° N, 172.148° 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
2.9ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.128 · 8 stations
2.7ML, 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 3.2 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.13
Depth from
Operator assigned
Station coverage gap
212°, poorly surrounded by stations
Stations used
14

Nearby

Within 100 km, magnitude 1.5 and up: 56 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 3.4193 km WSW of Nikolski, Alaska · 463 days ago · 70 km deep · 61 km away
  2. 2.859 km ESE of Atka, Alaska · 460 days ago · 71 km deep · 87 km away
  3. 2.8216 km SW of Nikolski, Alaska · 457 days ago · 24 km deep · 86 km away
  4. 2.162 km ESE of Atka, Alaska · 457 days ago · 47 km deep · 84 km away
  5. 2.8121 km E of Atka, Alaska · 456 days ago · 10 km deep · 65 km away
  6. 2.9109 km E of Atka, Alaska · 456 days ago · 10 km deep · 39 km away
  7. 3.170 km ESE of Atka, Alaska · 456 days ago · 35 km deep · 80 km away
  8. 3.3175 km WSW of Nikolski, Alaska · 456 days ago · 35 km deep · 80 km away
  9. 3.2192 km SW of Nikolski, Alaska · 454 days ago · 35 km deep · 67 km away
  10. 2.164 km SE of Atka, Alaska · 454 days ago · 14 km deep · 95 km away
  11. 3.662 km ESE of Atka, Alaska · 454 days ago · 55 km deep · 84 km away
  12. 2.7145 km SE of Atka, Alaska · 454 days ago · 10 km deep · 86 km away
  13. 2.9121 km E of Atka, Alaska · 453 days ago · 35 km deep · 31 km away
  14. 2.488 km SE of Atka, Alaska · 452 days ago · 42 km deep · 90 km away
  15. 2.374 km E of Atka, Alaska · 452 days ago · 7 km deep · 84 km away
  16. 2.7171 km E of Atka, Alaska · 449 days ago · 80 km deep · 70 km away
  17. 3.250 km ESE of Atka, Alaska · 448 days ago · 84 km deep · 95 km away
  18. 2.792 km E of Atka, Alaska · 448 days ago · 78 km deep · 59 km away
  19. 2.853 km SE of Atka, Alaska · 447 days ago · 9 km deep · 98 km away
  20. 5.057 km E of Atka, Alaska · 443 days ago · 70 km deep · 91 km away · felt by 4 · tsunami flag
  21. 2.265 km SE of Atka, Alaska · 443 days ago · 16 km deep · 94 km away
  22. 2.261 km ESE of Atka, Alaska · 443 days ago · 42 km deep · 86 km away
  23. 2.668 km ESE of Atka, Alaska · 442 days ago · 35 km deep · 81 km away
  24. 3.069 km SE of Atka, Alaska · 441 days ago · 60 km deep · 87 km away
  25. 3.3172 km E of Atka, Alaska · 440 days ago · 125 km deep · 72 km away
  26. 2.066 km SE of Atka, Alaska · 437 days ago · 20 km deep · 87 km away
  27. 2.559 km SE of Atka, Alaska · 434 days ago · 10 km deep · 97 km away
  28. 1.751 km E of Atka, Alaska · 433 days ago · 16 km deep · 95 km away
  29. 2.7177 km SW of Nikolski, Alaska · 432 days ago · 10 km deep · 93 km away
  30. 3.089 km SE of Atka, Alaska · 431 days ago · 32 km deep · 68 km away
  31. 2.2127 km ENE of Atka, Alaska · 430 days ago · 24 km deep · 68 km away
  32. 2.768 km ESE of Atka, Alaska · 429 days ago · 35 km deep · 79 km away
  33. 3.6118 km ENE of Atka, Alaska · 425 days ago · 112 km deep · 81 km away
  34. 3.788 km SSE of Atka, Alaska · 425 days ago · 35 km deep · 100 km away
  35. 4.277 km SE of Atka, Alaska · 424 days ago · 35 km deep · 95 km away
  36. 2.9184 km SW of Nikolski, Alaska · 424 days ago · 41 km deep · 91 km away
  37. 2.1105 km ESE of Atka, Alaska · 423 days ago · 44 km deep · 40 km away
  38. 2.6170 km WSW of Nikolski, Alaska · 422 days ago · 67 km deep · 85 km away
  39. 2.8182 km SW of Nikolski, Alaska · 421 days ago · 35 km deep · 80 km away
  40. 2.476 km ESE of Atka, Alaska · 419 days ago · 13 km deep · 70 km away
  41. 3.3139 km E of Atka, Alaska · 419 days ago · 24 km deep · 41 km away
  42. 2.978 km ENE of Atka, Alaska · 418 days ago · 22 km deep · 99 km away
  43. 3.867 km ESE of Atka, Alaska · 417 days ago · 35 km deep · 82 km away
  44. 1.877 km ESE of Atka, Alaska · 413 days ago · 46 km deep · 70 km away
  45. 2.561 km E of Atka, Alaska · 412 days ago · 9 km deep · 89 km away
  46. 3.1128 km E of Atka, Alaska · 411 days ago · 78 km deep · 42 km away
  47. 3.871 km SE of Atka, Alaska · 411 days ago · 56 km deep · 96 km away
  48. 3.976 km SE of Atka, Alaska · 411 days ago · 35 km deep · 91 km away
  49. 1.888 km SSE of Atka, Alaska · 410 days ago · 39 km deep · 99 km away
  50. 2.7211 km SE of Atka, Alaska · 410 days ago · 10 km deep · 100 km away
  51. 2.993 km ESE of Atka, Alaska · 410 days ago · 10 km deep · 54 km away
  52. 2.799 km E of Atka, Alaska · 409 days ago · 9 km deep · 72 km away
  53. 2.7120 km E of Atka, Alaska · 407 days ago · 45 km deep · 35 km away
  54. 2.7121 km ESE of Atka, Alaska · 405 days ago · 35 km deep · 27 km away
  55. 2.2132 km E of Atka, Alaska · 405 days ago · 59 km deep · 43 km away
  56. 3.865 km SE of Atka, Alaska · 404 days ago · 15 km deep · 95 km away

Before

  1. 3.2150 km ESE of Atka, Alaska · 464 days ago · 26 km deep · 6 km away
  2. 2.985 km ESE of Atka, Alaska · 466 days ago · 35 km deep · 65 km away
  3. 2.065 km SE of Atka, Alaska · 468 days ago · 39 km deep · 89 km away
  4. 2.997 km E of Atka, Alaska · 472 days ago · 70 km deep · 56 km away
  5. 2.172 km ESE of Atka, Alaska · 476 days ago · 77 km deep · 74 km away
  6. 2.791 km SE of Atka, Alaska · 480 days ago · 18 km deep · 93 km away
  7. 3.561 km ENE of Atka, Alaska · 481 days ago · 10 km deep · 95 km away
  8. 3.077 km SE of Atka, Alaska · 482 days ago · 35 km deep · 98 km away
  9. 4.4178 km ESE of Atka, Alaska · 482 days ago · 30 km deep · 34 km away
  10. 3.8194 km E of Atka, Alaska · 482 days ago · 35 km deep · 56 km away
  11. 2.1111 km ESE of Atka, Alaska · 483 days ago · 13 km deep · 38 km away
  12. 2.0107 km ESE of Atka, Alaska · 483 days ago · 12 km deep · 40 km away
  13. 2.2117 km ESE of Atka, Alaska · 483 days ago · 26 km deep · 30 km away
  14. 2.7168 km SW of Nikolski, Alaska · 484 days ago · 35 km deep · 91 km away
  15. 1.952 km ESE of Atka, Alaska · 493 days ago · 55 km deep · 95 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000qa18 (also filed as ak02583ctbv0). Read Fri, Oct 2, 2026, 8:32 AM UTC.