Alaska earthquakes

M3.4 earthquake 145 km WSW of Nikolski, Alaska

A magnitude 3.4 earthquake struck 145 km WSW of Nikolski, Alaska on Fri, May 26, 2023, 2:23 PM HADT (23:23 UTC), 56 km (35 mi) below the surface.

A larger quake followed: M4.8 88 km WSW of Nikolski, 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
3.4 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-05-26 23:23:52 UTC
Depth
56.2 km (34.9 mi), shallow
Epicenter
52.324° N, 170.759° 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
3.4ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.085 · 18 stations
3.1ML, 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 8.6 km horizontally, 23.7 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
205°, poorly surrounded by stations
Stations used
19

Nearby

Within 100 km, magnitude 1.5 and up: 61 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 3.871 km SW of Nikolski, Alaska · 1222 days ago · 32 km deep · 74 km away
  2. 2.046 km SW of Nikolski, Alaska · 1221 days ago · 13 km deep · 99 km away
  3. 3.6Fox Islands, Aleutian Islands, Alaska · 1220 days ago · 11 km deep · 77 km away
  4. 3.470 km WSW of Nikolski, Alaska · 1215 days ago · 81 km deep · 75 km away
  5. 1.963 km SW of Nikolski, Alaska · 1214 days ago · 16 km deep · 83 km away
  6. 1.8Fox Islands, Aleutian Islands, Alaska · 1214 days ago · 15 km deep · 100 km away
  7. 1.980 km WSW of Nikolski, Alaska · 1214 days ago · 25 km deep · 64 km away
  8. 2.6191 km ESE of Atka, Alaska · 1211 days ago · 35 km deep · 69 km away
  9. 1.546 km WSW of Nikolski, Alaska · 1210 days ago · 13 km deep · 98 km away
  10. 4.0107 km W of Nikolski, Alaska · 1208 days ago · 121 km deep · 65 km away
  11. 1.9Fox Islands, Aleutian Islands, Alaska · 1206 days ago · 23 km deep · 37 km away
  12. 2.6101 km SW of Nikolski, Alaska · 1206 days ago · 35 km deep · 62 km away
  13. 2.1132 km SSW of Nikolski, Alaska · 1206 days ago · 16 km deep · 92 km away
  14. 2.8127 km SW of Nikolski, Alaska · 1206 days ago · 35 km deep · 28 km away
  15. 1.5Fox Islands, Aleutian Islands, Alaska · 1205 days ago · 24 km deep · 91 km away
  16. 3.2176 km E of Atka, Alaska · 1204 days ago · 106 km deep · 61 km away
  17. 3.2119 km WSW of Nikolski, Alaska · 1204 days ago · 87 km deep · 33 km away
  18. 2.6103 km SW of Nikolski, Alaska · 1203 days ago · 35 km deep · 55 km away
  19. 2.8Fox Islands, Aleutian Islands, Alaska · 1203 days ago · 35 km deep · 23 km away
  20. 2.687 km SW of Nikolski, Alaska · 1203 days ago · 35 km deep · 79 km away
  21. 2.0Fox Islands, Aleutian Islands, Alaska · 1200 days ago · 15 km deep · 100 km away
  22. 2.8144 km SW of Nikolski, Alaska · 1200 days ago · 10 km deep · 66 km away
  23. 3.0161 km WSW of Nikolski, Alaska · 1198 days ago · 35 km deep · 17 km away
  24. 3.0100 km WSW of Nikolski, Alaska · 1198 days ago · 107 km deep · 45 km away
  25. 1.866 km SW of Nikolski, Alaska · 1198 days ago · 18 km deep · 88 km away
  26. 3.1137 km W of Nikolski, Alaska · 1197 days ago · 63 km deep · 44 km away
  27. 3.5157 km SW of Nikolski, Alaska · 1196 days ago · 35 km deep · 24 km away
  28. 3.0177 km ESE of Atka, Alaska · 1194 days ago · 35 km deep · 80 km away
  29. 2.6Fox Islands, Aleutian Islands, Alaska · 1190 days ago · 35 km deep · 80 km away
  30. 1.650 km WSW of Nikolski, Alaska · 1190 days ago · 16 km deep · 95 km away
  31. 4.888 km WSW of Nikolski, Alaska · 1189 days ago · 80 km deep · 61 km away · felt by 9
  32. 3.6181 km SW of Nikolski, Alaska · 1182 days ago · 35 km deep · 41 km away
  33. 3.3185 km SW of Nikolski, Alaska · 1181 days ago · 35 km deep · 47 km away
  34. 3.8Fox Islands, Aleutian Islands, Alaska · 1181 days ago · 44 km deep · 74 km away
  35. 2.9Fox Islands, Aleutian Islands, Alaska · 1180 days ago · 35 km deep · 51 km away
  36. 2.9187 km ESE of Atka, Alaska · 1179 days ago · 35 km deep · 83 km away
  37. 2.3176 km ENE of Atka, Alaska · 1178 days ago · 10 km deep · 90 km away
  38. 2.0116 km SW of Nikolski, Alaska · 1177 days ago · 60 km deep · 37 km away
  39. 2.899 km SW of Nikolski, Alaska · 1176 days ago · 35 km deep · 52 km away
  40. 1.647 km SW of Nikolski, Alaska · 1175 days ago · 18 km deep · 98 km away
  41. 2.2111 km SW of Nikolski, Alaska · 1174 days ago · 26 km deep · 57 km away
  42. 2.8Fox Islands, Aleutian Islands, Alaska · 1173 days ago · 207 km deep · 95 km away
  43. 2.9141 km SW of Nikolski, Alaska · 1173 days ago · 35 km deep · 21 km away
  44. 2.1126 km SW of Nikolski, Alaska · 1173 days ago · 22 km deep · 34 km away
  45. 2.296 km WSW of Nikolski, Alaska · 1172 days ago · 153 km deep · 58 km away
  46. 2.4112 km WSW of Nikolski, Alaska · 1172 days ago · 35 km deep · 33 km away
  47. 3.775 km SW of Nikolski, Alaska · 1172 days ago · 63 km deep · 78 km away
  48. 2.9122 km SW of Nikolski, Alaska · 1172 days ago · 58 km deep · 29 km away
  49. 2.1122 km SW of Nikolski, Alaska · 1171 days ago · 22 km deep · 39 km away
  50. 1.971 km WSW of Nikolski, Alaska · 1171 days ago · 6 km deep · 80 km away
  51. 3.0197 km SW of Nikolski, Alaska · 1170 days ago · 35 km deep · 55 km away
  52. 2.079 km SSW of Nikolski, Alaska · 1170 days ago · 25 km deep · 84 km away
  53. 3.4174 km WSW of Nikolski, Alaska · 1169 days ago · 57 km deep · 29 km away
  54. 2.382 km SSW of Nikolski, Alaska · 1168 days ago · 34 km deep · 85 km away
  55. 3.069 km SW of Nikolski, Alaska · 1167 days ago · 35 km deep · 80 km away
  56. 2.6145 km WSW of Nikolski, Alaska · 1167 days ago · 155 km deep · 44 km away
  57. 2.069 km WSW of Nikolski, Alaska · 1167 days ago · 85 km deep · 77 km away
  58. 1.665 km WSW of Nikolski, Alaska · 1166 days ago · 11 km deep · 80 km away
  59. 2.383 km SW of Nikolski, Alaska · 1165 days ago · 33 km deep · 68 km away
  60. 3.787 km SW of Nikolski, Alaska · 1165 days ago · 35 km deep · 61 km away

The first 60 of 61.

Before

  1. 2.697 km SW of Nikolski, Alaska · 1226 days ago · 35 km deep · 75 km away
  2. 3.7197 km SW of Nikolski, Alaska · 1227 days ago · 35 km deep · 56 km away
  3. 2.070 km SW of Nikolski, Alaska · 1228 days ago · 20 km deep · 86 km away
  4. 2.6142 km WSW of Nikolski, Alaska · 1230 days ago · 35 km deep · 8 km away
  5. 3.1130 km SW of Nikolski, Alaska · 1231 days ago · 35 km deep · 21 km away
  6. 3.8180 km ESE of Atka, Alaska · 1238 days ago · 35 km deep · 89 km away
  7. 3.7147 km ENE of Atka, Alaska · 1238 days ago · 113 km deep · 91 km away
  8. 2.9114 km SW of Nikolski, Alaska · 1245 days ago · 35 km deep · 34 km away
  9. 2.984 km SSW of Nikolski, Alaska · 1250 days ago · 35 km deep · 92 km away
  10. 2.7169 km E of Atka, Alaska · 1252 days ago · 35 km deep · 73 km away
  11. 2.290 km SW of Nikolski, Alaska · 1253 days ago · 34 km deep · 61 km away
  12. 2.162 km SW of Nikolski, Alaska · 1253 days ago · 40 km deep · 88 km away
  13. 3.078 km SW of Nikolski, Alaska · 1253 days ago · 26 km deep · 69 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000k4e2 (also filed as ak0236puasdy). Read Fri, Oct 2, 2026, 3:20 AM UTC.