Alaska earthquakes

M1.6 earthquake 270 km W of Adak, Alaska

A magnitude 1.6 earthquake struck 270 km W of Adak, Alaska on Wed, May 18, 2022, 12:38 PM GMT+12 (00:38 UTC), 74 km (46 mi) below the surface.

A larger quake followed: M6.3 Rat Islands, Aleutian Islands, 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
1.6 (ml), micro
Local time
UTC
2022-05-18 00:38:56 UTC
Depth
74.3 km (46.2 mi), intermediate-depth
Epicenter
51.633° N, 179.472° E
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.

Stations used
20

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 103 in the 30 days before it.

After

  1. 5.7Rat Islands, Aleutian Islands, Alaska · 1596 days ago · 18 km deep · 79 km away · tsunami flag
  2. 2.1Rat Islands, Aleutian Islands, Alaska · 1596 days ago · 3 km deep · 61 km away
  3. 1.9Rat Islands, Aleutian Islands, Alaska · 1596 days ago · 19 km deep · 65 km away
  4. 1.9Rat Islands, Aleutian Islands, Alaska · 1596 days ago · 8 km deep · 72 km away
  5. 2.0Rat Islands, Aleutian Islands, Alaska · 1596 days ago · 19 km deep · 68 km away
  6. 1.6Rat Islands, Aleutian Islands, Alaska · 1596 days ago · 18 km deep · 70 km away
  7. 1.7Rat Islands, Aleutian Islands, Alaska · 1596 days ago · 14 km deep · 70 km away
  8. 1.7Rat Islands, Aleutian Islands, Alaska · 1596 days ago · 13 km deep · 70 km away
  9. 1.7Rat Islands, Aleutian Islands, Alaska · 1596 days ago · 26 km deep · 58 km away
  10. 1.7Rat Islands, Aleutian Islands, Alaska · 1596 days ago · 22 km deep · 56 km away
  11. 1.6Rat Islands, Aleutian Islands, Alaska · 1596 days ago · 17 km deep · 72 km away
  12. 3.7323 km WSW of Adak, Alaska · 1596 days ago · 15 km deep · 65 km away
  13. 1.6Rat Islands, Aleutian Islands, Alaska · 1596 days ago · 15 km deep · 59 km away
  14. 1.6Rat Islands, Aleutian Islands, Alaska · 1596 days ago · 17 km deep · 70 km away
  15. 1.5Rat Islands, Aleutian Islands, Alaska · 1596 days ago · 6 km deep · 69 km away
  16. 1.6Rat Islands, Aleutian Islands, Alaska · 1596 days ago · 24 km deep · 59 km away
  17. 2.1Rat Islands, Aleutian Islands, Alaska · 1596 days ago · 13 km deep · 68 km away
  18. 1.7Rat Islands, Aleutian Islands, Alaska · 1596 days ago · 13 km deep · 68 km away
  19. 2.8Rat Islands, Aleutian Islands, Alaska · 1596 days ago · 23 km deep · 68 km away
  20. 1.9Rat Islands, Aleutian Islands, Alaska · 1596 days ago · 20 km deep · 67 km away
  21. 1.8Rat Islands, Aleutian Islands, Alaska · 1596 days ago · 19 km deep · 62 km away
  22. 1.6Rat Islands, Aleutian Islands, Alaska · 1595 days ago · 18 km deep · 65 km away
  23. 1.6Rat Islands, Aleutian Islands, Alaska · 1595 days ago · 5 km deep · 73 km away
  24. 1.6Rat Islands, Aleutian Islands, Alaska · 1595 days ago · 19 km deep · 66 km away
  25. 1.6292 km W of Adak, Alaska · 1595 days ago · 72 km deep · 24 km away
  26. 3.8Rat Islands, Aleutian Islands, Alaska · 1595 days ago · 35 km deep · 72 km away
  27. 1.7Rat Islands, Aleutian Islands, Alaska · 1595 days ago · 14 km deep · 75 km away
  28. 1.9Rat Islands, Aleutian Islands, Alaska · 1595 days ago · 101 km deep · 76 km away
  29. 2.7275 km W of Adak, Alaska · 1595 days ago · 194 km deep · 47 km away
  30. 3.0281 km WSW of Adak, Alaska · 1595 days ago · 25 km deep · 75 km away
  31. 1.6212 km W of Adak, Alaska · 1595 days ago · 110 km deep · 62 km away
  32. 1.5249 km WSW of Adak, Alaska · 1595 days ago · 26 km deep · 86 km away
  33. 1.5Rat Islands, Aleutian Islands, Alaska · 1595 days ago · 98 km deep · 76 km away
  34. 1.8179 km W of Adak, Alaska · 1595 days ago · 88 km deep · 91 km away
  35. 1.5298 km W of Adak, Alaska · 1594 days ago · 83 km deep · 29 km away
  36. 1.7Rat Islands, Aleutian Islands, Alaska · 1594 days ago · 16 km deep · 78 km away
  37. 1.9Rat Islands, Aleutian Islands, Alaska · 1594 days ago · 124 km deep · 74 km away
  38. 1.7Rat Islands, Aleutian Islands, Alaska · 1594 days ago · 15 km deep · 92 km away
  39. 1.8256 km W of Adak, Alaska · 1594 days ago · 65 km deep · 21 km away
  40. 2.7253 km WSW of Adak, Alaska · 1593 days ago · 19 km deep · 53 km away
  41. 2.8Rat Islands, Aleutian Islands, Alaska · 1593 days ago · 26 km deep · 74 km away
  42. 2.1Rat Islands, Aleutian Islands, Alaska · 1590 days ago · 16 km deep · 63 km away
  43. 2.6Rat Islands, Aleutian Islands, Alaska · 1590 days ago · 65 km deep · 37 km away
  44. 2.9Rat Islands, Aleutian Islands, Alaska · 1590 days ago · 35 km deep · 82 km away
  45. 2.9245 km WSW of Adak, Alaska · 1589 days ago · 10 km deep · 85 km away
  46. 1.9Rat Islands, Aleutian Islands, Alaska · 1589 days ago · 53 km deep · 88 km away
  47. 1.5212 km WSW of Adak, Alaska · 1589 days ago · 14 km deep · 72 km away
  48. 2.0Rat Islands, Aleutian Islands, Alaska · 1589 days ago · 60 km deep · 39 km away
  49. 2.0Rat Islands, Aleutian Islands, Alaska · 1589 days ago · 69 km deep · 51 km away
  50. 1.8266 km WSW of Adak, Alaska · 1589 days ago · 61 km deep · 22 km away
  51. 2.6Rat Islands, Aleutian Islands, Alaska · 1589 days ago · 114 km deep · 79 km away
  52. 1.7Rat Islands, Aleutian Islands, Alaska · 1588 days ago · 6 km deep · 78 km away
  53. 2.0222 km WSW of Adak, Alaska · 1588 days ago · 26 km deep · 69 km away
  54. 1.9Rat Islands, Aleutian Islands, Alaska · 1588 days ago · 34 km deep · 46 km away
  55. 1.9281 km WSW of Adak, Alaska · 1587 days ago · 26 km deep · 68 km away
  56. 1.6236 km W of Adak, Alaska · 1587 days ago · 13 km deep · 35 km away
  57. 2.9Rat Islands, Aleutian Islands, Alaska · 1587 days ago · 24 km deep · 76 km away
  58. 2.9297 km W of Adak, Alaska · 1587 days ago · 90 km deep · 31 km away
  59. 3.2298 km WSW of Adak, Alaska · 1587 days ago · 32 km deep · 67 km away
  60. 2.8Rat Islands, Aleutian Islands, Alaska · 1586 days ago · 10 km deep · 81 km away

The first 60 of at least 199.

Before

  1. 1.9Rat Islands, Aleutian Islands, Alaska · 1596 days ago · 98 km deep · 70 km away
  2. 2.8Rat Islands, Aleutian Islands, Alaska · 1597 days ago · 145 km deep · 92 km away
  3. 2.0255 km W of Adak, Alaska · 1597 days ago · 135 km deep · 44 km away
  4. 1.9289 km WSW of Adak, Alaska · 1597 days ago · 19 km deep · 67 km away
  5. 2.8Rat Islands, Aleutian Islands, Alaska · 1597 days ago · 53 km deep · 68 km away
  6. 1.6250 km W of Adak, Alaska · 1597 days ago · 57 km deep · 24 km away
  7. 3.1Rat Islands, Aleutian Islands, Alaska · 1598 days ago · 111 km deep · 78 km away
  8. 1.6298 km W of Adak, Alaska · 1598 days ago · 64 km deep · 29 km away
  9. 1.8217 km WSW of Adak, Alaska · 1598 days ago · 60 km deep · 59 km away
  10. 3.8287 km W of Adak, Alaska · 1598 days ago · 108 km deep · 24 km away
  11. 1.6255 km W of Adak, Alaska · 1599 days ago · 93 km deep · 24 km away
  12. 1.5186 km W of Adak, Alaska · 1599 days ago · 72 km deep · 84 km away
  13. 1.8Rat Islands, Aleutian Islands, Alaska · 1599 days ago · 68 km deep · 50 km away
  14. 2.0251 km W of Adak, Alaska · 1599 days ago · 175 km deep · 38 km away
  15. 3.6Rat Islands, Aleutian Islands, Alaska · 1599 days ago · 62 km deep · 65 km away
  16. 2.7Rat Islands, Aleutian Islands, Alaska · 1600 days ago · 35 km deep · 60 km away
  17. 2.5280 km WSW of Adak, Alaska · 1600 days ago · 35 km deep · 32 km away
  18. 1.6Rat Islands, Aleutian Islands, Alaska · 1600 days ago · 55 km deep · 45 km away
  19. 1.6176 km W of Adak, Alaska · 1600 days ago · 7 km deep · 94 km away
  20. 1.8262 km WSW of Adak, Alaska · 1600 days ago · 29 km deep · 38 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0226c8e5pf. Read Wed, Sep 30, 2026, 2:34 AM UTC.