Alaska earthquakes

M2.8 earthquake 206 km W of Adak, Alaska

A magnitude 2.8 earthquake struck 206 km W of Adak, Alaska on Mon, May 22, 2023, 10:31 AM HADT (19:31 UTC), 106 km (66 mi) below the surface.

A larger quake followed: M5.3 135 km WSW of Adak, 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
2.8 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-05-22 19:31:23 UTC
Depth
106.1 km (65.9 mi), intermediate-depth
Epicenter
51.865° N, 179.630° 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
2.8ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.085 · 18 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 9.1 km horizontally, 6.6 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
156°
Stations used
17

Nearby

Within 100 km, magnitude 1.5 and up: 196 in the 60 days after this one and 42 in the 30 days before it.

After

  1. 1.8Andreanof Islands, Aleutian Islands, Alaska · 1228 days ago · 20 km deep · 69 km away
  2. 2.1Rat Islands, Aleutian Islands, Alaska · 1228 days ago · 163 km deep · 58 km away
  3. 2.6191 km WSW of Adak, Alaska · 1227 days ago · 35 km deep · 79 km away
  4. 1.9187 km WSW of Adak, Alaska · 1227 days ago · 22 km deep · 77 km away
  5. 2.7174 km WSW of Adak, Alaska · 1226 days ago · 29 km deep · 68 km away
  6. 2.9290 km W of Adak, Alaska · 1226 days ago · 15 km deep · 87 km away
  7. 1.9251 km WSW of Adak, Alaska · 1226 days ago · 7 km deep · 61 km away
  8. 3.1250 km WSW of Adak, Alaska · 1226 days ago · 35 km deep · 97 km away
  9. 2.6150 km WSW of Adak, Alaska · 1226 days ago · 26 km deep · 86 km away
  10. 3.0259 km W of Adak, Alaska · 1224 days ago · 100 km deep · 54 km away
  11. 2.2193 km WSW of Adak, Alaska · 1222 days ago · 23 km deep · 59 km away
  12. 2.1236 km WSW of Adak, Alaska · 1222 days ago · 13 km deep · 80 km away
  13. 3.2151 km W of Adak, Alaska · 1221 days ago · 93 km deep · 57 km away
  14. 2.2194 km WSW of Adak, Alaska · 1221 days ago · 26 km deep · 69 km away
  15. 1.7Andreanof Islands, Aleutian Islands, Alaska · 1220 days ago · 13 km deep · 17 km away
  16. 1.8161 km WSW of Adak, Alaska · 1219 days ago · 13 km deep · 62 km away
  17. 3.5208 km W of Adak, Alaska · 1217 days ago · 80 km deep · 27 km away
  18. 4.1149 km WNW of Adak, Alaska · 1217 days ago · 187 km deep · 80 km away
  19. 3.9185 km WNW of Adak, Alaska · 1216 days ago · 205 km deep · 52 km away
  20. 3.1203 km WSW of Adak, Alaska · 1215 days ago · 35 km deep · 91 km away
  21. 2.2152 km WSW of Adak, Alaska · 1214 days ago · 65 km deep · 71 km away
  22. 1.9134 km WSW of Adak, Alaska · 1213 days ago · 23 km deep · 98 km away
  23. 3.6184 km WSW of Adak, Alaska · 1213 days ago · 32 km deep · 92 km away
  24. 3.6190 km WSW of Adak, Alaska · 1213 days ago · 33 km deep · 90 km away
  25. 3.8131 km W of Adak, Alaska · 1212 days ago · 133 km deep · 75 km away
  26. 1.9190 km WSW of Adak, Alaska · 1212 days ago · 22 km deep · 63 km away
  27. 2.5126 km WSW of Adak, Alaska · 1212 days ago · 20 km deep · 92 km away
  28. 2.9262 km W of Adak, Alaska · 1211 days ago · 162 km deep · 58 km away
  29. 4.0267 km W of Adak, Alaska · 1211 days ago · 113 km deep · 60 km away
  30. 1.8147 km WSW of Adak, Alaska · 1211 days ago · 11 km deep · 79 km away
  31. 2.1181 km W of Adak, Alaska · 1210 days ago · 112 km deep · 25 km away
  32. 2.6163 km WSW of Adak, Alaska · 1210 days ago · 25 km deep · 63 km away
  33. 3.2181 km WSW of Adak, Alaska · 1210 days ago · 31 km deep · 83 km away
  34. 2.1159 km W of Adak, Alaska · 1210 days ago · 79 km deep · 48 km away
  35. 2.0155 km WSW of Adak, Alaska · 1210 days ago · 17 km deep · 70 km away
  36. 1.9236 km WSW of Adak, Alaska · 1210 days ago · 20 km deep · 63 km away
  37. 3.8129 km WNW of Adak, Alaska · 1209 days ago · 125 km deep · 89 km away
  38. 1.7Andreanof Islands, Aleutian Islands, Alaska · 1208 days ago · 7 km deep · 96 km away
  39. 2.5211 km W of Adak, Alaska · 1208 days ago · 84 km deep · 18 km away
  40. 1.6231 km W of Adak, Alaska · 1208 days ago · 13 km deep · 27 km away
  41. 2.1Andreanof Islands, Aleutian Islands, Alaska · 1208 days ago · 147 km deep · 77 km away
  42. 3.1Andreanof Islands, Aleutian Islands, Alaska · 1208 days ago · 94 km deep · 14 km away
  43. 3.6165 km WSW of Adak, Alaska · 1208 days ago · 29 km deep · 96 km away
  44. 1.5164 km WSW of Adak, Alaska · 1208 days ago · 11 km deep · 61 km away
  45. 1.8180 km W of Adak, Alaska · 1208 days ago · 65 km deep · 41 km away
  46. 1.9265 km W of Adak, Alaska · 1208 days ago · 152 km deep · 59 km away
  47. 1.7Andreanof Islands, Aleutian Islands, Alaska · 1208 days ago · 11 km deep · 93 km away
  48. 3.0Andreanof Islands, Aleutian Islands, Alaska · 1208 days ago · 10 km deep · 87 km away
  49. 2.0256 km W of Adak, Alaska · 1208 days ago · 179 km deep · 52 km away
  50. 2.0Andreanof Islands, Aleutian Islands, Alaska · 1208 days ago · 145 km deep · 79 km away
  51. 2.6187 km WSW of Adak, Alaska · 1208 days ago · 28 km deep · 73 km away
  52. 1.6183 km WSW of Adak, Alaska · 1208 days ago · 24 km deep · 69 km away
  53. 3.4127 km WSW of Adak, Alaska · 1208 days ago · 10 km deep · 89 km away
  54. 2.2Andreanof Islands, Aleutian Islands, Alaska · 1208 days ago · 236 km deep · 78 km away
  55. 3.3Rat Islands, Aleutian Islands, Alaska · 1207 days ago · 26 km deep · 98 km away
  56. 3.2255 km WSW of Adak, Alaska · 1207 days ago · 50 km deep · 70 km away
  57. 2.0233 km W of Adak, Alaska · 1207 days ago · 71 km deep · 42 km away
  58. 2.0228 km W of Adak, Alaska · 1207 days ago · 169 km deep · 30 km away
  59. 5.3135 km WSW of Adak, Alaska · 1206 days ago · 19 km deep · 87 km away · felt by 1 · tsunami flag
  60. 2.8136 km WSW of Adak, Alaska · 1206 days ago · 24 km deep · 90 km away

The first 60 of 196.

Before

  1. 1.9197 km WSW of Adak, Alaska · 1229 days ago · 65 km deep · 38 km away
  2. 2.7204 km WSW of Adak, Alaska · 1229 days ago · 35 km deep · 66 km away
  3. 2.9241 km WSW of Adak, Alaska · 1230 days ago · 35 km deep · 81 km away
  4. 1.7117 km WNW of Adak, Alaska · 1230 days ago · 114 km deep · 99 km away
  5. 1.5136 km WSW of Adak, Alaska · 1230 days ago · 26 km deep · 96 km away
  6. 1.9178 km WSW of Adak, Alaska · 1230 days ago · 23 km deep · 91 km away
  7. 2.6178 km WSW of Adak, Alaska · 1230 days ago · 35 km deep · 87 km away
  8. 1.8170 km WSW of Adak, Alaska · 1231 days ago · 22 km deep · 61 km away
  9. 1.7108 km W of Adak, Alaska · 1231 days ago · 12 km deep · 98 km away
  10. 2.0218 km WSW of Adak, Alaska · 1231 days ago · 20 km deep · 69 km away
  11. 1.9191 km WSW of Adak, Alaska · 1232 days ago · 21 km deep · 86 km away
  12. 3.4219 km W of Adak, Alaska · 1232 days ago · 183 km deep · 21 km away
  13. 1.7205 km WSW of Adak, Alaska · 1232 days ago · 22 km deep · 91 km away
  14. 2.5174 km WSW of Adak, Alaska · 1233 days ago · 32 km deep · 68 km away
  15. 2.2170 km WSW of Adak, Alaska · 1234 days ago · 43 km deep · 81 km away
  16. 2.0150 km WSW of Adak, Alaska · 1234 days ago · 20 km deep · 84 km away
  17. 1.9178 km W of Adak, Alaska · 1235 days ago · 11 km deep · 30 km away
  18. 3.2180 km WSW of Adak, Alaska · 1236 days ago · 60 km deep · 69 km away
  19. 1.8135 km WSW of Adak, Alaska · 1236 days ago · 45 km deep · 94 km away
  20. 1.8129 km WSW of Adak, Alaska · 1237 days ago · 11 km deep · 83 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000k490 (also filed as ak0236j5t7o6). Read Fri, Oct 2, 2026, 3:31 AM UTC.