Alaska earthquakes

M2.5 earthquake 236 km WSW of Adak, Alaska

A magnitude 2.5 earthquake struck 236 km WSW of Adak, Alaska on Mon, Apr 1, 2024, 5:00 PM GMT-12 (05:00 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.9 254 km WSW of Adak, Alaska. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.5 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2024-04-02 05:00:27 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
51.353° N, 179.952° 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
2.5ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.105 · 12 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 1.9 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.10
Depth from
Operator assigned
Station coverage gap
199°, poorly surrounded by stations
Stations used
13

Nearby

Within 100 km, magnitude 1.5 and up: 144 in the 60 days after this one and 63 in the 30 days before it.

After

  1. 2.7Rat Islands, Aleutian Islands, Alaska · 910 days ago · 60 km deep · 99 km away
  2. 3.0215 km W of Adak, Alaska · 908 days ago · 91 km deep · 44 km away
  3. 2.9239 km WSW of Adak, Alaska · 906 days ago · 35 km deep · 14 km away
  4. 2.3204 km W of Adak, Alaska · 906 days ago · 83 km deep · 49 km away
  5. 3.6281 km WSW of Adak, Alaska · 905 days ago · 35 km deep · 46 km away
  6. 1.6255 km W of Adak, Alaska · 905 days ago · 10 km deep · 30 km away
  7. 3.2237 km WSW of Adak, Alaska · 904 days ago · 16 km deep · 10 km away
  8. 3.1Rat Islands, Aleutian Islands, Alaska · 902 days ago · 79 km deep · 86 km away
  9. 2.2260 km W of Adak, Alaska · 902 days ago · 80 km deep · 48 km away
  10. 3.5246 km WSW of Adak, Alaska · 902 days ago · 35 km deep · 26 km away
  11. 2.0197 km WSW of Adak, Alaska · 901 days ago · 22 km deep · 43 km away
  12. 2.1168 km WSW of Adak, Alaska · 901 days ago · 26 km deep · 84 km away
  13. 1.9289 km W of Adak, Alaska · 901 days ago · 61 km deep · 74 km away
  14. 2.1289 km W of Adak, Alaska · 900 days ago · 93 km deep · 79 km away
  15. 3.7197 km WSW of Adak, Alaska · 900 days ago · 42 km deep · 53 km away
  16. 3.7Rat Islands, Aleutian Islands, Alaska · 900 days ago · 35 km deep · 85 km away
  17. 2.8Rat Islands, Aleutian Islands, Alaska · 898 days ago · 44 km deep · 89 km away
  18. 2.9Rat Islands, Aleutian Islands, Alaska · 898 days ago · 77 km deep · 96 km away
  19. 2.4180 km W of Adak, Alaska · 897 days ago · 69 km deep · 70 km away
  20. 1.9165 km W of Adak, Alaska · 897 days ago · 7 km deep · 78 km away
  21. 2.0185 km WSW of Adak, Alaska · 896 days ago · 22 km deep · 53 km away
  22. 2.6237 km WSW of Adak, Alaska · 896 days ago · 53 km deep · 4 km away
  23. 1.8233 km WSW of Adak, Alaska · 896 days ago · 24 km deep · 9 km away
  24. 1.8145 km WSW of Adak, Alaska · 895 days ago · 15 km deep · 93 km away
  25. 1.6261 km W of Adak, Alaska · 895 days ago · 13 km deep · 56 km away
  26. 1.9171 km WSW of Adak, Alaska · 895 days ago · 36 km deep · 68 km away
  27. 2.6157 km WSW of Adak, Alaska · 895 days ago · 40 km deep · 85 km away
  28. 2.8211 km W of Adak, Alaska · 895 days ago · 92 km deep · 47 km away
  29. 1.6153 km WSW of Adak, Alaska · 894 days ago · 16 km deep · 84 km away
  30. 1.7261 km W of Adak, Alaska · 894 days ago · 62 km deep · 33 km away
  31. 1.9293 km W of Adak, Alaska · 894 days ago · 67 km deep · 69 km away
  32. 1.7Rat Islands, Aleutian Islands, Alaska · 893 days ago · 65 km deep · 95 km away
  33. 2.9270 km W of Adak, Alaska · 893 days ago · 155 km deep · 84 km away
  34. 2.7265 km W of Adak, Alaska · 892 days ago · 139 km deep · 72 km away
  35. 3.0147 km WSW of Adak, Alaska · 892 days ago · 58 km deep · 95 km away
  36. 3.4266 km W of Adak, Alaska · 891 days ago · 66 km deep · 40 km away
  37. 4.1262 km WSW of Adak, Alaska · 890 days ago · 35 km deep · 32 km away
  38. 3.3262 km WSW of Adak, Alaska · 890 days ago · 24 km deep · 26 km away
  39. 2.5258 km WSW of Adak, Alaska · 890 days ago · 35 km deep · 23 km away
  40. 4.6248 km WSW of Adak, Alaska · 889 days ago · 36 km deep · 15 km away
  41. 2.3253 km WSW of Adak, Alaska · 889 days ago · 18 km deep · 29 km away
  42. 3.0257 km WSW of Adak, Alaska · 889 days ago · 10 km deep · 54 km away
  43. 2.7258 km WSW of Adak, Alaska · 888 days ago · 54 km deep · 26 km away
  44. 2.4209 km WSW of Adak, Alaska · 888 days ago · 58 km deep · 29 km away
  45. 2.0264 km W of Adak, Alaska · 888 days ago · 65 km deep · 37 km away
  46. 1.6Rat Islands, Aleutian Islands, Alaska · 888 days ago · 7 km deep · 82 km away
  47. 4.9254 km WSW of Adak, Alaska · 887 days ago · 56 km deep · 20 km away
  48. 1.9253 km WSW of Adak, Alaska · 887 days ago · 38 km deep · 19 km away
  49. 2.1253 km WSW of Adak, Alaska · 887 days ago · 41 km deep · 18 km away
  50. 2.2230 km W of Adak, Alaska · 887 days ago · 70 km deep · 22 km away
  51. 2.7264 km W of Adak, Alaska · 887 days ago · 72 km deep · 42 km away
  52. 1.9157 km WSW of Adak, Alaska · 887 days ago · 26 km deep · 87 km away
  53. 3.3255 km WSW of Adak, Alaska · 886 days ago · 48 km deep · 19 km away
  54. 1.9169 km W of Adak, Alaska · 886 days ago · 13 km deep · 72 km away
  55. 1.9290 km WSW of Adak, Alaska · 886 days ago · 22 km deep · 53 km away
  56. 2.6242 km W of Adak, Alaska · 885 days ago · 166 km deep · 74 km away
  57. 2.2192 km WSW of Adak, Alaska · 883 days ago · 18 km deep · 59 km away
  58. 1.8Rat Islands, Aleutian Islands, Alaska · 883 days ago · 6 km deep · 83 km away
  59. 2.1234 km WSW of Adak, Alaska · 883 days ago · 17 km deep · 27 km away
  60. 1.8148 km W of Adak, Alaska · 882 days ago · 15 km deep · 90 km away

The first 60 of 144.

Before

  1. 3.6184 km WSW of Adak, Alaska · 912 days ago · 26 km deep · 60 km away
  2. 3.5Rat Islands, Aleutian Islands, Alaska · 913 days ago · 92 km deep · 96 km away
  3. 2.1266 km WSW of Adak, Alaska · 913 days ago · 44 km deep · 31 km away
  4. 1.9216 km WSW of Adak, Alaska · 913 days ago · 15 km deep · 40 km away
  5. 2.3176 km WSW of Adak, Alaska · 915 days ago · 70 km deep · 60 km away
  6. 2.6Rat Islands, Aleutian Islands, Alaska · 915 days ago · 35 km deep · 91 km away
  7. 2.7234 km WSW of Adak, Alaska · 916 days ago · 35 km deep · 31 km away
  8. 2.2169 km WSW of Adak, Alaska · 917 days ago · 32 km deep · 67 km away
  9. 3.2226 km W of Adak, Alaska · 917 days ago · 111 km deep · 58 km away
  10. 2.6258 km W of Adak, Alaska · 917 days ago · 69 km deep · 36 km away
  11. 2.7192 km WSW of Adak, Alaska · 917 days ago · 72 km deep · 44 km away
  12. 2.1249 km W of Adak, Alaska · 917 days ago · 8 km deep · 23 km away
  13. 2.0181 km WSW of Adak, Alaska · 917 days ago · 22 km deep · 56 km away
  14. 1.7141 km WSW of Adak, Alaska · 918 days ago · 12 km deep · 96 km away
  15. 2.1209 km WSW of Adak, Alaska · 918 days ago · 53 km deep · 31 km away
  16. 2.7263 km W of Adak, Alaska · 918 days ago · 77 km deep · 46 km away
  17. 2.2Rat Islands, Aleutian Islands, Alaska · 918 days ago · 41 km deep · 76 km away
  18. 1.8167 km WSW of Adak, Alaska · 918 days ago · 21 km deep · 77 km away
  19. 2.1177 km W of Adak, Alaska · 918 days ago · 90 km deep · 72 km away
  20. 1.8216 km WSW of Adak, Alaska · 918 days ago · 14 km deep · 29 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000mu63 (also filed as ak02449vyi47). Read Thu, Oct 1, 2026, 8:52 AM UTC.