Alaska earthquakes

M2.7 earthquake 178 km WSW of Adak, Alaska

A magnitude 2.7 earthquake struck 178 km WSW of Adak, Alaska on Wed, May 28, 2025, 8:10 AM HADT (17:10 UTC), 28 km (18 mi) below the surface.

A larger quake followed: M5.0 275 km WSW 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
2.7 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2025-05-28 17:10:44 UTC
Depth
28.2 km (17.5 mi), shallow
Epicenter
51.418° N, 179.113° 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
2.7ML, 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 4.3 km horizontally, 6.7 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
195°, poorly surrounded by stations
Stations used
15

Nearby

Within 100 km, magnitude 1.5 and up: at least 201 in the 60 days after this one and 100 in the 30 days before it.

After

  1. 1.9180 km W of Adak, Alaska · 492 days ago · 95 km deep · 49 km away
  2. 1.9185 km WSW of Adak, Alaska · 492 days ago · 13 km deep · 8 km away
  3. 1.9136 km WSW of Adak, Alaska · 492 days ago · 14 km deep · 58 km away
  4. 2.7230 km W of Adak, Alaska · 492 days ago · 171 km deep · 87 km away
  5. 1.7270 km WSW of Adak, Alaska · 492 days ago · 28 km deep · 94 km away
  6. 1.7254 km WSW of Adak, Alaska · 492 days ago · 13 km deep · 76 km away
  7. 1.8241 km WSW of Adak, Alaska · 491 days ago · 34 km deep · 64 km away
  8. 2.1129 km WSW of Adak, Alaska · 491 days ago · 38 km deep · 53 km away
  9. 2.1201 km WSW of Adak, Alaska · 490 days ago · 13 km deep · 27 km away
  10. 3.0117 km SW of Adak, Alaska · 490 days ago · 35 km deep · 76 km away
  11. 1.9235 km W of Adak, Alaska · 490 days ago · 17 km deep · 74 km away
  12. 2.0154 km WSW of Adak, Alaska · 490 days ago · 38 km deep · 28 km away
  13. 2.091 km WSW of Adak, Alaska · 489 days ago · 29 km deep · 90 km away
  14. 2.2159 km WSW of Adak, Alaska · 488 days ago · 9 km deep · 49 km away
  15. 2.2118 km WSW of Adak, Alaska · 488 days ago · 45 km deep · 65 km away
  16. 1.9143 km W of Adak, Alaska · 488 days ago · 11 km deep · 42 km away
  17. 2.682 km WSW of Adak, Alaska · 487 days ago · 76 km deep · 96 km away
  18. 3.8265 km WSW of Adak, Alaska · 487 days ago · 73 km deep · 88 km away
  19. 2.9207 km W of Adak, Alaska · 486 days ago · 113 km deep · 50 km away
  20. 2.2241 km WSW of Adak, Alaska · 486 days ago · 59 km deep · 66 km away
  21. 1.7128 km WSW of Adak, Alaska · 486 days ago · 7 km deep · 50 km away
  22. 1.7146 km WSW of Adak, Alaska · 486 days ago · 10 km deep · 36 km away
  23. 1.7252 km WSW of Adak, Alaska · 485 days ago · 20 km deep · 79 km away
  24. 1.5104 km SW of Adak, Alaska · 485 days ago · 26 km deep · 94 km away
  25. 2.0106 km WSW of Adak, Alaska · 485 days ago · 13 km deep · 72 km away
  26. 1.6165 km WSW of Adak, Alaska · 485 days ago · 21 km deep · 21 km away
  27. 2.1146 km W of Adak, Alaska · 485 days ago · 187 km deep · 82 km away
  28. 2.0146 km WSW of Adak, Alaska · 484 days ago · 25 km deep · 51 km away
  29. 1.5123 km WSW of Adak, Alaska · 484 days ago · 13 km deep · 58 km away
  30. 1.6113 km WSW of Adak, Alaska · 484 days ago · 52 km deep · 72 km away
  31. 1.6246 km WSW of Adak, Alaska · 484 days ago · 13 km deep · 68 km away
  32. 1.9141 km WSW of Adak, Alaska · 484 days ago · 30 km deep · 43 km away
  33. 1.990 km WSW of Adak, Alaska · 484 days ago · 14 km deep · 92 km away
  34. 1.8140 km SW of Adak, Alaska · 483 days ago · 21 km deep · 63 km away
  35. 1.8264 km WSW of Adak, Alaska · 483 days ago · 54 km deep · 89 km away
  36. 1.6115 km WSW of Adak, Alaska · 483 days ago · 15 km deep · 70 km away
  37. 1.7167 km WSW of Adak, Alaska · 483 days ago · 13 km deep · 15 km away
  38. 1.6142 km WSW of Adak, Alaska · 483 days ago · 22 km deep · 53 km away
  39. 2.8226 km W of Adak, Alaska · 482 days ago · 138 km deep · 72 km away
  40. 2.2260 km WSW of Adak, Alaska · 482 days ago · 11 km deep · 87 km away
  41. 1.7142 km WSW of Adak, Alaska · 482 days ago · 23 km deep · 50 km away
  42. 1.7121 km WSW of Adak, Alaska · 482 days ago · 49 km deep · 61 km away
  43. 1.6118 km SW of Adak, Alaska · 482 days ago · 26 km deep · 76 km away
  44. 2.0252 km W of Adak, Alaska · 482 days ago · 70 km deep · 83 km away
  45. 1.6108 km W of Adak, Alaska · 481 days ago · 7 km deep · 73 km away
  46. 2.094 km WSW of Adak, Alaska · 481 days ago · 13 km deep · 88 km away
  47. 2.193 km WSW of Adak, Alaska · 481 days ago · 13 km deep · 88 km away
  48. 1.8187 km WSW of Adak, Alaska · 481 days ago · 22 km deep · 11 km away
  49. 1.7154 km WSW of Adak, Alaska · 481 days ago · 23 km deep · 45 km away
  50. 1.8159 km WSW of Adak, Alaska · 481 days ago · 23 km deep · 46 km away
  51. 1.589 km WSW of Adak, Alaska · 481 days ago · 18 km deep · 93 km away
  52. 1.7114 km W of Adak, Alaska · 481 days ago · 13 km deep · 66 km away
  53. 2.0183 km WSW of Adak, Alaska · 478 days ago · 16 km deep · 10 km away
  54. 2.1130 km SW of Adak, Alaska · 478 days ago · 23 km deep · 66 km away
  55. 1.9150 km WSW of Adak, Alaska · 478 days ago · 21 km deep · 52 km away
  56. 1.895 km WSW of Adak, Alaska · 478 days ago · 18 km deep · 87 km away
  57. 2.0262 km W of Adak, Alaska · 477 days ago · 56 km deep · 89 km away
  58. 1.8142 km WSW of Adak, Alaska · 477 days ago · 22 km deep · 53 km away
  59. 2.8169 km WSW of Adak, Alaska · 477 days ago · 10 km deep · 32 km away
  60. 1.9221 km WSW of Adak, Alaska · 477 days ago · 25 km deep · 44 km away

The first 60 of at least 201.

Before

  1. 1.988 km WSW of Adak, Alaska · 493 days ago · 64 km deep · 90 km away
  2. 2.188 km SW of Adak, Alaska · 494 days ago · 26 km deep · 99 km away
  3. 3.1160 km W of Adak, Alaska · 494 days ago · 169 km deep · 64 km away
  4. 1.9127 km WSW of Adak, Alaska · 494 days ago · 18 km deep · 58 km away
  5. 2.6250 km WSW of Adak, Alaska · 495 days ago · 49 km deep · 72 km away
  6. 2.9239 km WSW of Adak, Alaska · 496 days ago · 35 km deep · 64 km away
  7. 2.8255 km W of Adak, Alaska · 497 days ago · 63 km deep · 82 km away
  8. 2.9216 km W of Adak, Alaska · 497 days ago · 105 km deep · 62 km away
  9. 1.995 km WSW of Adak, Alaska · 497 days ago · 41 km deep · 85 km away
  10. 2.8113 km SW of Adak, Alaska · 498 days ago · 33 km deep · 84 km away
  11. 2.0166 km W of Adak, Alaska · 498 days ago · 9 km deep · 43 km away
  12. 2.093 km WSW of Adak, Alaska · 499 days ago · 31 km deep · 85 km away
  13. 2.7145 km WNW of Adak, Alaska · 499 days ago · 176 km deep · 92 km away
  14. 1.8167 km W of Adak, Alaska · 500 days ago · 10 km deep · 38 km away
  15. 2.7229 km WSW of Adak, Alaska · 500 days ago · 68 km deep · 54 km away
  16. 2.1171 km W of Adak, Alaska · 501 days ago · 24 km deep · 48 km away
  17. 2.2125 km W of Adak, Alaska · 501 days ago · 13 km deep · 61 km away
  18. 2.0219 km WSW of Adak, Alaska · 501 days ago · 17 km deep · 44 km away
  19. 3.0264 km W of Adak, Alaska · 502 days ago · 78 km deep · 94 km away
  20. 1.6221 km W of Adak, Alaska · 502 days ago · 15 km deep · 61 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000qhif (also filed as ak0256t1pytm). Read Sat, Oct 3, 2026, 3:56 AM UTC.