Alaska earthquakes

M2.1 earthquake 234 km W of Adak, Alaska

A magnitude 2.1 earthquake struck 234 km W of Adak, Alaska on Thu, Feb 8, 2018, 11:56 AM HAST (21:56 UTC), 91 km (56 mi) below the surface.

A larger quake followed: M5.0 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
2.1 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2018-02-08 21:56:11 UTC
Depth
90.8 km (56.4 mi), intermediate-depth
Epicenter
51.733° N, 179.976° 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
11

Nearby

Within 100 km, magnitude 1.5 and up: 68 in the 60 days after this one and 40 in the 30 days before it.

After

  1. 4.2236 km W of Adak, Alaska · 3158 days ago · 76 km deep · 7 km away
  2. 3.0175 km W of Adak, Alaska · 3158 days ago · 236 km deep · 68 km away
  3. 1.8171 km WSW of Adak, Alaska · 3157 days ago · 7 km deep · 77 km away
  4. 2.8Rat Islands, Aleutian Islands, Alaska · 3157 days ago · 44 km deep · 97 km away
  5. 3.2187 km WSW of Adak, Alaska · 3155 days ago · 18 km deep · 84 km away
  6. 2.5243 km WSW of Adak, Alaska · 3150 days ago · 63 km deep · 33 km away
  7. 2.2Rat Islands, Aleutian Islands, Alaska · 3150 days ago · 90 km deep · 90 km away
  8. 1.9265 km W of Adak, Alaska · 3148 days ago · 8 km deep · 36 km away
  9. 2.6Rat Islands, Aleutian Islands, Alaska · 3148 days ago · 73 km deep · 98 km away
  10. 2.0Rat Islands, Aleutian Islands, Alaska · 3145 days ago · 13 km deep · 77 km away
  11. 2.4246 km WSW of Adak, Alaska · 3144 days ago · 18 km deep · 41 km away
  12. 2.8200 km W of Adak, Alaska · 3141 days ago · 123 km deep · 34 km away
  13. 3.6Rat Islands, Aleutian Islands, Alaska · 3140 days ago · 42 km deep · 89 km away
  14. 2.4187 km W of Adak, Alaska · 3140 days ago · 41 km deep · 49 km away
  15. 5.0Rat Islands, Aleutian Islands, Alaska · 3137 days ago · 96 km deep · 88 km away · tsunami flag
  16. 2.3282 km WSW of Adak, Alaska · 3136 days ago · 10 km deep · 83 km away
  17. 2.2276 km WSW of Adak, Alaska · 3136 days ago · 9 km deep · 78 km away
  18. 2.5241 km WSW of Adak, Alaska · 3135 days ago · 18 km deep · 78 km away
  19. 2.9Rat Islands, Aleutian Islands, Alaska · 3135 days ago · 158 km deep · 79 km away
  20. 2.1209 km WSW of Adak, Alaska · 3132 days ago · 16 km deep · 50 km away
  21. 2.3199 km W of Adak, Alaska · 3128 days ago · 66 km deep · 39 km away
  22. 2.3241 km WSW of Adak, Alaska · 3128 days ago · 14 km deep · 68 km away
  23. 2.8228 km WSW of Adak, Alaska · 3127 days ago · 30 km deep · 87 km away
  24. 2.2229 km WSW of Adak, Alaska · 3127 days ago · 17 km deep · 70 km away
  25. 2.5240 km WSW of Adak, Alaska · 3127 days ago · 9 km deep · 78 km away
  26. 2.2210 km WSW of Adak, Alaska · 3127 days ago · 7 km deep · 93 km away
  27. 2.3Rat Islands, Aleutian Islands, Alaska · 3127 days ago · 67 km deep · 80 km away
  28. 2.7195 km WSW of Adak, Alaska · 3127 days ago · 22 km deep · 97 km away
  29. 2.1290 km W of Adak, Alaska · 3126 days ago · 76 km deep · 56 km away
  30. 3.7Rat Islands, Aleutian Islands, Alaska · 3126 days ago · 40 km deep · 93 km away
  31. 2.4242 km WSW of Adak, Alaska · 3126 days ago · 7 km deep · 78 km away
  32. 1.8Rat Islands, Aleutian Islands, Alaska · 3126 days ago · 34 km deep · 87 km away
  33. 2.8287 km WSW of Adak, Alaska · 3125 days ago · 31 km deep · 85 km away
  34. 1.9270 km WSW of Adak, Alaska · 3125 days ago · 51 km deep · 47 km away
  35. 2.3227 km W of Adak, Alaska · 3124 days ago · 86 km deep · 7 km away
  36. 3.2Rat Islands, Aleutian Islands, Alaska · 3124 days ago · 106 km deep · 83 km away
  37. 2.4Andreanof Islands, Aleutian Islands, Alaska · 3122 days ago · 27 km deep · 74 km away
  38. 2.4221 km W of Adak, Alaska · 3121 days ago · 66 km deep · 26 km away
  39. 1.8174 km W of Adak, Alaska · 3120 days ago · 10 km deep · 59 km away
  40. 2.8Rat Islands, Aleutian Islands, Alaska · 3119 days ago · 109 km deep · 98 km away
  41. 4.0Rat Islands, Aleutian Islands, Alaska · 3118 days ago · 72 km deep · 89 km away
  42. 3.9251 km WSW of Adak, Alaska · 3117 days ago · 59 km deep · 47 km away
  43. 2.9256 km WSW of Adak, Alaska · 3117 days ago · 47 km deep · 61 km away
  44. 3.9180 km WSW of Adak, Alaska · 3112 days ago · 40 km deep · 86 km away
  45. 2.3190 km WSW of Adak, Alaska · 3112 days ago · 12 km deep · 90 km away
  46. 1.9232 km W of Adak, Alaska · 3111 days ago · 69 km deep · 24 km away
  47. 1.7187 km WSW of Adak, Alaska · 3111 days ago · 23 km deep · 72 km away
  48. 3.8220 km W of Adak, Alaska · 3111 days ago · 177 km deep · 26 km away
  49. 2.7230 km W of Adak, Alaska · 3111 days ago · 196 km deep · 39 km away
  50. 3.6Rat Islands, Aleutian Islands, Alaska · 3110 days ago · 73 km deep · 80 km away
  51. 2.3245 km WSW of Adak, Alaska · 3110 days ago · 48 km deep · 38 km away
  52. 2.8187 km W of Adak, Alaska · 3109 days ago · 217 km deep · 54 km away
  53. 2.2208 km WSW of Adak, Alaska · 3108 days ago · 55 km deep · 45 km away
  54. 1.5158 km WSW of Adak, Alaska · 3108 days ago · 18 km deep · 81 km away
  55. 3.2245 km W of Adak, Alaska · 3108 days ago · 19 km deep · 20 km away
  56. 2.3277 km WSW of Adak, Alaska · 3107 days ago · 49 km deep · 58 km away
  57. 2.1Rat Islands, Aleutian Islands, Alaska · 3105 days ago · 7 km deep · 98 km away
  58. 2.2210 km WSW of Adak, Alaska · 3104 days ago · 9 km deep · 58 km away
  59. 2.2213 km W of Adak, Alaska · 3104 days ago · 86 km deep · 21 km away
  60. 2.2258 km W of Adak, Alaska · 3103 days ago · 74 km deep · 24 km away

The first 60 of 68.

Before

  1. 2.8Andreanof Islands, Aleutian Islands, Alaska · 3160 days ago · 118 km deep · 29 km away
  2. 3.4Rat Islands, Aleutian Islands, Alaska · 3160 days ago · 60 km deep · 83 km away
  3. 1.7151 km W of Adak, Alaska · 3160 days ago · 16 km deep · 85 km away
  4. 2.6240 km WSW of Adak, Alaska · 3160 days ago · 13 km deep · 78 km away
  5. 2.0286 km W of Adak, Alaska · 3160 days ago · 76 km deep · 52 km away
  6. 2.5256 km W of Adak, Alaska · 3160 days ago · 86 km deep · 24 km away
  7. 2.6233 km WSW of Adak, Alaska · 3161 days ago · 22 km deep · 49 km away
  8. 1.6260 km W of Adak, Alaska · 3166 days ago · 12 km deep · 34 km away
  9. 4.1252 km W of Adak, Alaska · 3168 days ago · 255 km deep · 69 km away
  10. 1.8149 km WSW of Adak, Alaska · 3172 days ago · 11 km deep · 98 km away
  11. 2.1230 km WSW of Adak, Alaska · 3172 days ago · 11 km deep · 56 km away
  12. 2.5254 km WSW of Adak, Alaska · 3172 days ago · 35 km deep · 55 km away
  13. 2.0172 km WSW of Adak, Alaska · 3173 days ago · 50 km deep · 81 km away
  14. 4.0Rat Islands, Aleutian Islands, Alaska · 3174 days ago · 133 km deep · 85 km away
  15. 2.5Rat Islands, Aleutian Islands, Alaska · 3174 days ago · 141 km deep · 91 km away
  16. 3.8241 km WSW of Adak, Alaska · 3174 days ago · 40 km deep · 75 km away
  17. 2.2Rat Islands, Aleutian Islands, Alaska · 3174 days ago · 121 km deep · 99 km away
  18. 2.0278 km WSW of Adak, Alaska · 3175 days ago · 21 km deep · 79 km away
  19. 1.8163 km W of Adak, Alaska · 3175 days ago · 5 km deep · 72 km away
  20. 2.1272 km WSW of Adak, Alaska · 3176 days ago · 24 km deep · 68 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0181susny2 (also filed as ak18439001). Read Sun, Oct 4, 2026, 3:07 AM UTC.