Alaska earthquakes

M2.7 earthquake 288 km WSW of Adak, Alaska

A magnitude 2.7 earthquake struck 288 km WSW of Adak, Alaska on Sun, Oct 29, 2023, 1:18 AM GMT+12 (13:18 UTC), 58 km (36 mi) below the surface.

A larger quake followed: M5.1 Rat Islands, Aleutian Islands, Alaska. This one was a foreshock.

More in Alaska

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
2.7 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-10-28 13:18:46 UTC
Depth
57.7 km (35.8 mi), shallow
Epicenter
51.423° N, 179.259° 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 · ±0.105 · 16 stations
2.5ML, 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 8.3 km horizontally, 24.1 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
169°
Stations used
19

Nearby

Within 100 km, magnitude 1.5 and up: 102 in the 60 days after this one and 71 in the 30 days before it.

After

  1. 1.8194 km WSW of Adak, Alaska · 1069 days ago · 23 km deep · 99 km away
  2. 2.6279 km W of Adak, Alaska · 1069 days ago · 151 km deep · 76 km away
  3. 2.7224 km WSW of Adak, Alaska · 1068 days ago · 25 km deep · 76 km away
  4. 2.9Rat Islands, Aleutian Islands, Alaska · 1067 days ago · 35 km deep · 62 km away
  5. 3.0Rat Islands, Aleutian Islands, Alaska · 1067 days ago · 107 km deep · 71 km away
  6. 3.7Rat Islands, Aleutian Islands, Alaska · 1067 days ago · 50 km deep · 68 km away
  7. 1.8Rat Islands, Aleutian Islands, Alaska · 1067 days ago · 66 km deep · 38 km away
  8. 1.7Rat Islands, Aleutian Islands, Alaska · 1066 days ago · 7 km deep · 86 km away
  9. 2.7250 km W of Adak, Alaska · 1066 days ago · 166 km deep · 63 km away
  10. 2.8Rat Islands, Aleutian Islands, Alaska · 1066 days ago · 131 km deep · 60 km away
  11. 1.6274 km W of Adak, Alaska · 1066 days ago · 15 km deep · 42 km away
  12. 3.1246 km W of Adak, Alaska · 1065 days ago · 184 km deep · 70 km away
  13. 2.3299 km WSW of Adak, Alaska · 1065 days ago · 23 km deep · 37 km away
  14. 2.1276 km WSW of Adak, Alaska · 1065 days ago · 15 km deep · 55 km away
  15. 1.8235 km WSW of Adak, Alaska · 1065 days ago · 18 km deep · 58 km away
  16. 1.9Rat Islands, Aleutian Islands, Alaska · 1064 days ago · 11 km deep · 88 km away
  17. 2.9197 km W of Adak, Alaska · 1064 days ago · 104 km deep · 91 km away
  18. 3.5233 km WSW of Adak, Alaska · 1064 days ago · 60 km deep · 59 km away
  19. 3.4241 km WSW of Adak, Alaska · 1063 days ago · 24 km deep · 67 km away
  20. 2.6222 km WSW of Adak, Alaska · 1063 days ago · 74 km deep · 66 km away
  21. 2.7260 km WSW of Adak, Alaska · 1063 days ago · 74 km deep · 28 km away
  22. 3.4Rat Islands, Aleutian Islands, Alaska · 1062 days ago · 29 km deep · 45 km away
  23. 4.1Rat Islands, Aleutian Islands, Alaska · 1062 days ago · 35 km deep · 28 km away
  24. 3.1Rat Islands, Aleutian Islands, Alaska · 1062 days ago · 96 km deep · 54 km away
  25. 2.7232 km W of Adak, Alaska · 1061 days ago · 10 km deep · 59 km away
  26. 3.3Rat Islands, Aleutian Islands, Alaska · 1061 days ago · 108 km deep · 97 km away
  27. 3.4Rat Islands, Aleutian Islands, Alaska · 1061 days ago · 77 km deep · 50 km away
  28. 5.1Rat Islands, Aleutian Islands, Alaska · 1061 days ago · 70 km deep · 63 km away · tsunami flag
  29. 2.8288 km WSW of Adak, Alaska · 1059 days ago · 32 km deep · 24 km away
  30. 3.6219 km WSW of Adak, Alaska · 1057 days ago · 35 km deep · 83 km away
  31. 2.8220 km WSW of Adak, Alaska · 1056 days ago · 35 km deep · 98 km away
  32. 2.9212 km WSW of Adak, Alaska · 1055 days ago · 10 km deep · 100 km away
  33. 2.2Rat Islands, Aleutian Islands, Alaska · 1055 days ago · 7 km deep · 90 km away
  34. 2.2258 km WSW of Adak, Alaska · 1055 days ago · 26 km deep · 34 km away
  35. 3.2240 km W of Adak, Alaska · 1053 days ago · 74 km deep · 49 km away
  36. 4.4Rat Islands, Aleutian Islands, Alaska · 1052 days ago · 119 km deep · 96 km away
  37. 4.0Rat Islands, Aleutian Islands, Alaska · 1051 days ago · 140 km deep · 82 km away
  38. 3.3Rat Islands, Aleutian Islands, Alaska · 1050 days ago · 35 km deep · 34 km away
  39. 3.0Rat Islands, Aleutian Islands, Alaska · 1050 days ago · 73 km deep · 68 km away
  40. 2.5241 km WSW of Adak, Alaska · 1050 days ago · 73 km deep · 47 km away
  41. 2.6241 km WSW of Adak, Alaska · 1050 days ago · 10 km deep · 47 km away
  42. 1.9Rat Islands, Aleutian Islands, Alaska · 1050 days ago · 24 km deep · 42 km away
  43. 2.1243 km W of Adak, Alaska · 1049 days ago · 7 km deep · 45 km away
  44. 1.9247 km W of Adak, Alaska · 1049 days ago · 23 km deep · 41 km away
  45. 2.7Rat Islands, Aleutian Islands, Alaska · 1049 days ago · 68 km deep · 39 km away
  46. 2.8243 km WSW of Adak, Alaska · 1049 days ago · 10 km deep · 46 km away
  47. 2.7243 km WSW of Adak, Alaska · 1049 days ago · 9 km deep · 45 km away
  48. 3.1254 km WSW of Adak, Alaska · 1049 days ago · 26 km deep · 46 km away
  49. 2.1240 km W of Adak, Alaska · 1048 days ago · 7 km deep · 48 km away
  50. 2.6239 km WSW of Adak, Alaska · 1048 days ago · 10 km deep · 49 km away
  51. 2.1242 km W of Adak, Alaska · 1048 days ago · 6 km deep · 46 km away
  52. 2.3209 km W of Adak, Alaska · 1048 days ago · 71 km deep · 80 km away
  53. 2.5240 km W of Adak, Alaska · 1048 days ago · 10 km deep · 48 km away
  54. 3.1239 km WSW of Adak, Alaska · 1047 days ago · 16 km deep · 68 km away
  55. 3.0205 km W of Adak, Alaska · 1046 days ago · 104 km deep · 88 km away
  56. 4.2Rat Islands, Aleutian Islands, Alaska · 1044 days ago · 76 km deep · 51 km away
  57. 3.0Rat Islands, Aleutian Islands, Alaska · 1041 days ago · 35 km deep · 64 km away
  58. 3.6191 km W of Adak, Alaska · 1041 days ago · 83 km deep · 97 km away
  59. 3.8292 km WSW of Adak, Alaska · 1039 days ago · 35 km deep · 52 km away
  60. 3.3Rat Islands, Aleutian Islands, Alaska · 1038 days ago · 111 km deep · 84 km away

The first 60 of 102.

Before

  1. 2.7Rat Islands, Aleutian Islands, Alaska · 1070 days ago · 112 km deep · 60 km away
  2. 2.9Rat Islands, Aleutian Islands, Alaska · 1070 days ago · 59 km deep · 57 km away
  3. 1.9274 km W of Adak, Alaska · 1070 days ago · 54 km deep · 14 km away
  4. 1.7Rat Islands, Aleutian Islands, Alaska · 1071 days ago · 70 km deep · 48 km away
  5. 1.9237 km WSW of Adak, Alaska · 1071 days ago · 22 km deep · 59 km away
  6. 2.0202 km WSW of Adak, Alaska · 1071 days ago · 60 km deep · 87 km away
  7. 1.8212 km W of Adak, Alaska · 1071 days ago · 65 km deep · 77 km away
  8. 3.2Rat Islands, Aleutian Islands, Alaska · 1071 days ago · 137 km deep · 96 km away
  9. 2.6Rat Islands, Aleutian Islands, Alaska · 1072 days ago · 94 km deep · 55 km away
  10. 3.3Rat Islands, Aleutian Islands, Alaska · 1072 days ago · 151 km deep · 97 km away
  11. 3.3206 km W of Adak, Alaska · 1072 days ago · 106 km deep · 88 km away
  12. 2.4Rat Islands, Aleutian Islands, Alaska · 1072 days ago · 83 km deep · 59 km away
  13. 2.5Rat Islands, Aleutian Islands, Alaska · 1073 days ago · 82 km deep · 52 km away
  14. 2.8263 km WSW of Adak, Alaska · 1073 days ago · 25 km deep · 41 km away
  15. 2.8204 km W of Adak, Alaska · 1073 days ago · 92 km deep · 85 km away
  16. 1.9Rat Islands, Aleutian Islands, Alaska · 1073 days ago · 71 km deep · 37 km away
  17. 2.6Rat Islands, Aleutian Islands, Alaska · 1074 days ago · 24 km deep · 58 km away
  18. 2.7Rat Islands, Aleutian Islands, Alaska · 1074 days ago · 24 km deep · 48 km away
  19. 2.8297 km WSW of Adak, Alaska · 1074 days ago · 26 km deep · 45 km away
  20. 2.9Rat Islands, Aleutian Islands, Alaska · 1074 days ago · 22 km deep · 51 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000la4v (also filed as ak023du0m20b). Read Thu, Oct 1, 2026, 3:21 PM UTC.