Alaska earthquakes

M2.7 earthquake 263 km W of Adak, Alaska

A magnitude 2.7 earthquake struck 263 km W of Adak, Alaska on Thu, Mar 28, 2024, 6:04 AM GMT+12 (18:04 UTC), 77 km (48 mi) below the surface.

A larger quake followed: M5.8 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
2.7 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2024-03-27 18:04:42 UTC
Depth
77.4 km (48.1 mi), intermediate-depth
Epicenter
51.638° N, 179.574° E
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 · ±0.081 · 20 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 9.8 km horizontally, 10.4 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
119°
Stations used
24

Nearby

Within 100 km, magnitude 1.5 and up: 146 in the 60 days after this one and 54 in the 30 days before it.

After

  1. 2.1209 km WSW of Adak, Alaska · 918 days ago · 53 km deep · 57 km away
  2. 2.0181 km WSW of Adak, Alaska · 917 days ago · 22 km deep · 93 km away
  3. 2.1249 km W of Adak, Alaska · 917 days ago · 8 km deep · 23 km away
  4. 2.7192 km WSW of Adak, Alaska · 917 days ago · 72 km deep · 79 km away
  5. 2.6258 km W of Adak, Alaska · 917 days ago · 69 km deep · 10 km away
  6. 3.2226 km W of Adak, Alaska · 917 days ago · 111 km deep · 43 km away
  7. 2.7234 km WSW of Adak, Alaska · 916 days ago · 35 km deep · 75 km away
  8. 2.6Rat Islands, Aleutian Islands, Alaska · 915 days ago · 35 km deep · 74 km away
  9. 2.3176 km WSW of Adak, Alaska · 915 days ago · 70 km deep · 89 km away
  10. 5.8Rat Islands, Aleutian Islands, Alaska · 915 days ago · 109 km deep · 97 km away · tsunami flag
  11. 3.0Rat Islands, Aleutian Islands, Alaska · 914 days ago · 74 km deep · 86 km away
  12. 1.9216 km WSW of Adak, Alaska · 913 days ago · 15 km deep · 85 km away
  13. 2.1266 km WSW of Adak, Alaska · 913 days ago · 44 km deep · 28 km away
  14. 3.5Rat Islands, Aleutian Islands, Alaska · 913 days ago · 92 km deep · 57 km away
  15. 3.1Rat Islands, Aleutian Islands, Alaska · 912 days ago · 58 km deep · 85 km away
  16. 2.5236 km WSW of Adak, Alaska · 912 days ago · 10 km deep · 46 km away
  17. 2.7Rat Islands, Aleutian Islands, Alaska · 910 days ago · 60 km deep · 68 km away
  18. 4.0Rat Islands, Aleutian Islands, Alaska · 908 days ago · 109 km deep · 90 km away
  19. 3.0215 km W of Adak, Alaska · 908 days ago · 91 km deep · 48 km away
  20. 2.9239 km WSW of Adak, Alaska · 906 days ago · 35 km deep · 57 km away
  21. 2.3204 km W of Adak, Alaska · 906 days ago · 83 km deep · 58 km away
  22. 3.6281 km WSW of Adak, Alaska · 905 days ago · 35 km deep · 56 km away
  23. 1.6255 km W of Adak, Alaska · 905 days ago · 10 km deep · 16 km away
  24. 3.2237 km WSW of Adak, Alaska · 904 days ago · 16 km deep · 37 km away
  25. 3.1Rat Islands, Aleutian Islands, Alaska · 902 days ago · 79 km deep · 46 km away
  26. 2.2260 km W of Adak, Alaska · 902 days ago · 80 km deep · 6 km away
  27. 3.5246 km WSW of Adak, Alaska · 902 days ago · 35 km deep · 66 km away
  28. 2.0197 km WSW of Adak, Alaska · 901 days ago · 22 km deep · 84 km away
  29. 1.9289 km W of Adak, Alaska · 901 days ago · 61 km deep · 30 km away
  30. 2.1289 km W of Adak, Alaska · 900 days ago · 93 km deep · 33 km away
  31. 3.7197 km WSW of Adak, Alaska · 900 days ago · 42 km deep · 97 km away
  32. 3.7Rat Islands, Aleutian Islands, Alaska · 900 days ago · 35 km deep · 59 km away
  33. 2.8Rat Islands, Aleutian Islands, Alaska · 898 days ago · 44 km deep · 61 km away
  34. 2.9Rat Islands, Aleutian Islands, Alaska · 898 days ago · 77 km deep · 60 km away
  35. 2.4180 km W of Adak, Alaska · 897 days ago · 69 km deep · 83 km away
  36. 1.9165 km W of Adak, Alaska · 897 days ago · 7 km deep · 97 km away
  37. 2.0185 km WSW of Adak, Alaska · 896 days ago · 22 km deep · 90 km away
  38. 2.6237 km WSW of Adak, Alaska · 896 days ago · 53 km deep · 41 km away
  39. 1.8233 km WSW of Adak, Alaska · 896 days ago · 24 km deep · 54 km away
  40. 1.6261 km W of Adak, Alaska · 895 days ago · 13 km deep · 14 km away
  41. 2.8211 km W of Adak, Alaska · 895 days ago · 92 km deep · 52 km away
  42. 1.7261 km W of Adak, Alaska · 894 days ago · 62 km deep · 17 km away
  43. 1.9293 km W of Adak, Alaska · 894 days ago · 67 km deep · 30 km away
  44. 2.6Rat Islands, Aleutian Islands, Alaska · 894 days ago · 12 km deep · 98 km away
  45. 2.0Rat Islands, Aleutian Islands, Alaska · 893 days ago · 7 km deep · 92 km away
  46. 1.7Rat Islands, Aleutian Islands, Alaska · 893 days ago · 65 km deep · 57 km away
  47. 2.9270 km W of Adak, Alaska · 893 days ago · 155 km deep · 43 km away
  48. 2.7265 km W of Adak, Alaska · 892 days ago · 139 km deep · 30 km away
  49. 3.4266 km W of Adak, Alaska · 891 days ago · 66 km deep · 11 km away
  50. 4.1262 km WSW of Adak, Alaska · 890 days ago · 35 km deep · 59 km away
  51. 3.3262 km WSW of Adak, Alaska · 890 days ago · 24 km deep · 48 km away
  52. 2.5258 km WSW of Adak, Alaska · 890 days ago · 35 km deep · 48 km away
  53. 4.6248 km WSW of Adak, Alaska · 890 days ago · 36 km deep · 51 km away
  54. 2.0Rat Islands, Aleutian Islands, Alaska · 889 days ago · 13 km deep · 68 km away
  55. 2.3253 km WSW of Adak, Alaska · 889 days ago · 18 km deep · 65 km away
  56. 3.0257 km WSW of Adak, Alaska · 889 days ago · 10 km deep · 91 km away
  57. 2.7258 km WSW of Adak, Alaska · 888 days ago · 54 km deep · 26 km away
  58. 2.4209 km WSW of Adak, Alaska · 888 days ago · 58 km deep · 58 km away
  59. 2.2Rat Islands, Aleutian Islands, Alaska · 888 days ago · 98 km deep · 79 km away
  60. 2.0264 km W of Adak, Alaska · 888 days ago · 65 km deep · 13 km away

The first 60 of 146.

Before

  1. 2.2Rat Islands, Aleutian Islands, Alaska · 918 days ago · 41 km deep · 49 km away
  2. 2.1177 km W of Adak, Alaska · 918 days ago · 90 km deep · 86 km away
  3. 1.8216 km WSW of Adak, Alaska · 918 days ago · 14 km deep · 74 km away
  4. 2.2199 km WSW of Adak, Alaska · 918 days ago · 22 km deep · 75 km away
  5. 1.9186 km WSW of Adak, Alaska · 918 days ago · 24 km deep · 92 km away
  6. 2.6237 km WSW of Adak, Alaska · 919 days ago · 21 km deep · 77 km away
  7. 2.6Rat Islands, Aleutian Islands, Alaska · 919 days ago · 67 km deep · 78 km away
  8. 2.2255 km W of Adak, Alaska · 919 days ago · 97 km deep · 28 km away
  9. 2.6241 km WSW of Adak, Alaska · 919 days ago · 10 km deep · 62 km away
  10. 2.0204 km WSW of Adak, Alaska · 920 days ago · 21 km deep · 75 km away
  11. 3.0250 km WSW of Adak, Alaska · 921 days ago · 35 km deep · 79 km away
  12. 3.3242 km WSW of Adak, Alaska · 921 days ago · 52 km deep · 44 km away
  13. 2.2201 km W of Adak, Alaska · 922 days ago · 13 km deep · 62 km away
  14. 3.6246 km W of Adak, Alaska · 925 days ago · 10 km deep · 17 km away
  15. 2.7230 km W of Adak, Alaska · 926 days ago · 162 km deep · 50 km away
  16. 2.1Rat Islands, Aleutian Islands, Alaska · 926 days ago · 34 km deep · 55 km away
  17. 2.9253 km W of Adak, Alaska · 927 days ago · 96 km deep · 23 km away
  18. 3.2Rat Islands, Aleutian Islands, Alaska · 928 days ago · 139 km deep · 97 km away
  19. 2.7267 km W of Adak, Alaska · 928 days ago · 77 km deep · 6 km away
  20. 2.9198 km WSW of Adak, Alaska · 928 days ago · 35 km deep · 96 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000mctd (also filed as ak024406hxx2). Read Thu, Oct 1, 2026, 9:11 AM UTC.