Alaska earthquakes

M3.1 earthquake 246 km W of Adak, Alaska

A magnitude 3.1 earthquake struck 246 km W of Adak, Alaska on Wed, Nov 1, 2023, 6:56 PM GMT+12 (06:56 UTC), 184 km (115 mi) below the surface.

A larger quake followed: M4.4 Rat Islands, Aleutian Islands, 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
3.1 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-11-01 06:56:05 UTC
Depth
184.5 km (114.6 mi), intermediate-depth
Epicenter
51.960° N, 179.786° 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
3.1ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.081 · 20 stations
2.8ML, 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 12.8 km horizontally, 3.3 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
156°
Stations used
27

Nearby

Within 100 km, magnitude 1.5 and up: 82 in the 60 days after this one and 56 in the 30 days before it.

After

  1. 1.8235 km WSW of Adak, Alaska · 1064 days ago · 18 km deep · 73 km away
  2. 1.9Rat Islands, Aleutian Islands, Alaska · 1064 days ago · 11 km deep · 100 km away
  3. 2.9197 km W of Adak, Alaska · 1064 days ago · 104 km deep · 61 km away
  4. 3.5233 km WSW of Adak, Alaska · 1063 days ago · 60 km deep · 71 km away
  5. 3.4241 km WSW of Adak, Alaska · 1063 days ago · 24 km deep · 96 km away
  6. 2.6222 km WSW of Adak, Alaska · 1062 days ago · 74 km deep · 60 km away
  7. 2.7260 km WSW of Adak, Alaska · 1062 days ago · 74 km deep · 56 km away
  8. 4.1Rat Islands, Aleutian Islands, Alaska · 1062 days ago · 35 km deep · 98 km away
  9. 3.1Rat Islands, Aleutian Islands, Alaska · 1061 days ago · 96 km deep · 82 km away
  10. 2.7232 km W of Adak, Alaska · 1061 days ago · 10 km deep · 34 km away
  11. 3.4Rat Islands, Aleutian Islands, Alaska · 1061 days ago · 77 km deep · 84 km away
  12. 2.8288 km WSW of Adak, Alaska · 1058 days ago · 32 km deep · 88 km away
  13. 3.6219 km WSW of Adak, Alaska · 1057 days ago · 35 km deep · 95 km away
  14. 2.2Rat Islands, Aleutian Islands, Alaska · 1054 days ago · 7 km deep · 97 km away
  15. 2.2258 km WSW of Adak, Alaska · 1054 days ago · 26 km deep · 69 km away
  16. 2.8179 km WSW of Adak, Alaska · 1054 days ago · 18 km deep · 95 km away
  17. 3.2240 km W of Adak, Alaska · 1052 days ago · 74 km deep · 40 km away
  18. 4.4Rat Islands, Aleutian Islands, Alaska · 1052 days ago · 119 km deep · 98 km away
  19. 3.3Rat Islands, Aleutian Islands, Alaska · 1050 days ago · 35 km deep · 64 km away
  20. 3.0Rat Islands, Aleutian Islands, Alaska · 1049 days ago · 73 km deep · 97 km away
  21. 2.5241 km WSW of Adak, Alaska · 1049 days ago · 73 km deep · 53 km away
  22. 2.6241 km WSW of Adak, Alaska · 1049 days ago · 10 km deep · 55 km away
  23. 1.9Rat Islands, Aleutian Islands, Alaska · 1049 days ago · 24 km deep · 48 km away
  24. 2.1243 km W of Adak, Alaska · 1049 days ago · 7 km deep · 49 km away
  25. 2.1160 km WSW of Adak, Alaska · 1049 days ago · 15 km deep · 98 km away
  26. 1.9247 km W of Adak, Alaska · 1049 days ago · 23 km deep · 48 km away
  27. 2.7Rat Islands, Aleutian Islands, Alaska · 1049 days ago · 68 km deep · 73 km away
  28. 2.8243 km WSW of Adak, Alaska · 1048 days ago · 10 km deep · 57 km away
  29. 2.7243 km WSW of Adak, Alaska · 1048 days ago · 9 km deep · 53 km away
  30. 3.1254 km WSW of Adak, Alaska · 1048 days ago · 26 km deep · 81 km away
  31. 2.1240 km W of Adak, Alaska · 1048 days ago · 7 km deep · 48 km away
  32. 2.6239 km WSW of Adak, Alaska · 1048 days ago · 10 km deep · 55 km away
  33. 2.1242 km W of Adak, Alaska · 1048 days ago · 6 km deep · 50 km away
  34. 2.3209 km W of Adak, Alaska · 1047 days ago · 71 km deep · 56 km away
  35. 2.5240 km W of Adak, Alaska · 1047 days ago · 10 km deep · 52 km away
  36. 3.1239 km WSW of Adak, Alaska · 1047 days ago · 16 km deep · 95 km away
  37. 3.0205 km W of Adak, Alaska · 1045 days ago · 104 km deep · 45 km away
  38. 4.2Rat Islands, Aleutian Islands, Alaska · 1044 days ago · 76 km deep · 82 km away
  39. 2.9185 km WSW of Adak, Alaska · 1041 days ago · 79 km deep · 80 km away
  40. 3.9179 km WNW of Adak, Alaska · 1041 days ago · 246 km deep · 90 km away
  41. 3.6191 km W of Adak, Alaska · 1040 days ago · 83 km deep · 71 km away
  42. 2.7Rat Islands, Aleutian Islands, Alaska · 1035 days ago · 10 km deep · 89 km away
  43. 3.3Rat Islands, Aleutian Islands, Alaska · 1035 days ago · 101 km deep · 92 km away
  44. 2.2165 km WSW of Adak, Alaska · 1034 days ago · 12 km deep · 98 km away
  45. 2.3192 km WSW of Adak, Alaska · 1032 days ago · 65 km deep · 74 km away
  46. 2.6Rat Islands, Aleutian Islands, Alaska · 1032 days ago · 91 km deep · 88 km away
  47. 1.9299 km W of Adak, Alaska · 1030 days ago · 61 km deep · 62 km away
  48. 3.2Rat Islands, Aleutian Islands, Alaska · 1030 days ago · 66 km deep · 79 km away
  49. 2.7197 km WSW of Adak, Alaska · 1029 days ago · 72 km deep · 76 km away
  50. 2.2Rat Islands, Aleutian Islands, Alaska · 1029 days ago · 72 km deep · 90 km away
  51. 3.1Rat Islands, Aleutian Islands, Alaska · 1029 days ago · 75 km deep · 80 km away
  52. 2.0260 km WSW of Adak, Alaska · 1029 days ago · 21 km deep · 84 km away
  53. 2.8231 km W of Adak, Alaska · 1029 days ago · 131 km deep · 21 km away
  54. 2.6Rat Islands, Aleutian Islands, Alaska · 1028 days ago · 75 km deep · 76 km away
  55. 2.3297 km WSW of Adak, Alaska · 1028 days ago · 22 km deep · 100 km away
  56. 3.5174 km W of Adak, Alaska · 1028 days ago · 118 km deep · 74 km away
  57. 2.8287 km WSW of Adak, Alaska · 1027 days ago · 19 km deep · 83 km away
  58. 3.5252 km WSW of Adak, Alaska · 1026 days ago · 35 km deep · 71 km away
  59. 3.8Rat Islands, Aleutian Islands, Alaska · 1026 days ago · 31 km deep · 88 km away
  60. 2.6209 km W of Adak, Alaska · 1024 days ago · 111 km deep · 38 km away

The first 60 of 82.

Before

  1. 1.6274 km W of Adak, Alaska · 1065 days ago · 15 km deep · 33 km away
  2. 2.8Rat Islands, Aleutian Islands, Alaska · 1065 days ago · 131 km deep · 57 km away
  3. 2.7250 km W of Adak, Alaska · 1065 days ago · 166 km deep · 6 km away
  4. 1.8Rat Islands, Aleutian Islands, Alaska · 1066 days ago · 66 km deep · 75 km away
  5. 3.0Rat Islands, Aleutian Islands, Alaska · 1067 days ago · 107 km deep · 90 km away
  6. 2.7224 km WSW of Adak, Alaska · 1068 days ago · 25 km deep · 90 km away
  7. 2.6279 km W of Adak, Alaska · 1068 days ago · 151 km deep · 36 km away
  8. 1.9186 km W of Adak, Alaska · 1068 days ago · 74 km deep · 74 km away
  9. 1.8194 km WSW of Adak, Alaska · 1069 days ago · 23 km deep · 93 km away
  10. 2.7288 km WSW of Adak, Alaska · 1069 days ago · 58 km deep · 70 km away
  11. 2.7Rat Islands, Aleutian Islands, Alaska · 1069 days ago · 112 km deep · 83 km away
  12. 1.9274 km W of Adak, Alaska · 1070 days ago · 54 km deep · 58 km away
  13. 1.7Rat Islands, Aleutian Islands, Alaska · 1070 days ago · 70 km deep · 90 km away
  14. 1.9237 km WSW of Adak, Alaska · 1070 days ago · 22 km deep · 79 km away
  15. 2.0202 km WSW of Adak, Alaska · 1070 days ago · 60 km deep · 73 km away
  16. 1.8212 km W of Adak, Alaska · 1071 days ago · 65 km deep · 53 km away
  17. 2.6Rat Islands, Aleutian Islands, Alaska · 1071 days ago · 94 km deep · 82 km away
  18. 3.3206 km W of Adak, Alaska · 1071 days ago · 106 km deep · 43 km away
  19. 2.4Rat Islands, Aleutian Islands, Alaska · 1072 days ago · 83 km deep · 82 km away
  20. 2.5Rat Islands, Aleutian Islands, Alaska · 1072 days ago · 82 km deep · 91 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000lpp7 (also filed as ak023e0itgtu). Read Thu, Oct 1, 2026, 3:35 AM UTC.