Alaska earthquakes

M3.8 earthquake 132 km ENE of Atka, Alaska

A magnitude 3.8 earthquake struck 132 km ENE of Atka, Alaska on Sun, Jun 25, 2023, 5:45 PM HADT (02:45 UTC), 146 km (91 mi) below the surface.

A larger quake followed: M4.1 108 km NE of Atka, 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
3.8 (mb, body-wave), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-06-26 02:45:51 UTC
Depth
146.0 km (90.7 mi), intermediate-depth
Epicenter
52.645° N, 172.390° 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
3.8mb, body-waveUSGS National Earthquake Information CenterPreferred · Reviewed · ±0.207 · 6 stations
3.3ML, 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 10.8 km horizontally, 9.0 km in depth
Magnitude uncertainty
±0.21
Depth from
From location
Station coverage gap
162°
Stations used
33

Nearby

Within 100 km, magnitude 1.5 and up: 31 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 3.0177 km ESE of Atka, Alaska · 1193 days ago · 35 km deep · 99 km away
  2. 4.1108 km NE of Atka, Alaska · 1188 days ago · 187 km deep · 40 km away
  3. 2.3176 km ENE of Atka, Alaska · 1177 days ago · 10 km deep · 44 km away
  4. 2.8Fox Islands, Aleutian Islands, Alaska · 1172 days ago · 207 km deep · 66 km away
  5. 3.4174 km WSW of Nikolski, Alaska · 1169 days ago · 57 km deep · 94 km away
  6. 2.263 km ESE of Atka, Alaska · 1167 days ago · 22 km deep · 90 km away
  7. 2.6145 km WSW of Nikolski, Alaska · 1166 days ago · 155 km deep · 95 km away
  8. 3.199 km ENE of Atka, Alaska · 1164 days ago · 10 km deep · 33 km away
  9. 3.1160 km W of Nikolski, Alaska · 1163 days ago · 193 km deep · 87 km away
  10. 2.142 km E of Atka, Alaska · 1158 days ago · 16 km deep · 99 km away
  11. 2.945 km NE of Atka, Alaska · 1150 days ago · 161 km deep · 91 km away
  12. 2.896 km ESE of Atka, Alaska · 1145 days ago · 149 km deep · 95 km away
  13. 3.048 km NNE of Atka, Alaska · 1145 days ago · 180 km deep · 99 km away
  14. 2.079 km ESE of Atka, Alaska · 1140 days ago · 32 km deep · 99 km away
  15. 4.0146 km WSW of Nikolski, Alaska · 1140 days ago · 10 km deep · 95 km away
  16. 2.4145 km WSW of Nikolski, Alaska · 1140 days ago · 5 km deep · 95 km away
  17. 3.7145 km WSW of Nikolski, Alaska · 1140 days ago · 10 km deep · 96 km away
  18. 2.0146 km WSW of Nikolski, Alaska · 1140 days ago · 8 km deep · 95 km away
  19. 2.3151 km WSW of Nikolski, Alaska · 1140 days ago · 5 km deep · 92 km away
  20. 2.5Fox Islands, Aleutian Islands, Alaska · 1138 days ago · 10 km deep · 95 km away
  21. 2.3151 km WSW of Nikolski, Alaska · 1138 days ago · 3 km deep · 91 km away
  22. 1.8Fox Islands, Aleutian Islands, Alaska · 1138 days ago · 1 km deep · 95 km away
  23. 1.7143 km WSW of Nikolski, Alaska · 1138 days ago · 5 km deep · 99 km away
  24. 2.7Fox Islands, Aleutian Islands, Alaska · 1136 days ago · 11 km deep · 99 km away
  25. 2.3151 km WSW of Nikolski, Alaska · 1136 days ago · 5 km deep · 91 km away
  26. 1.848 km E of Atka, Alaska · 1136 days ago · 5 km deep · 95 km away
  27. 1.938 km E of Atka, Alaska · 1135 days ago · 21 km deep · 99 km away
  28. 1.841 km E of Atka, Alaska · 1135 days ago · 22 km deep · 96 km away
  29. 3.5144 km W of Nikolski, Alaska · 1135 days ago · 262 km deep · 95 km away
  30. 1.939 km E of Atka, Alaska · 1135 days ago · 21 km deep · 99 km away
  31. 3.9194 km E of Atka, Alaska · 1134 days ago · 46 km deep · 99 km away · felt by 1

Before

  1. 2.994 km NE of Atka, Alaska · 1202 days ago · 76 km deep · 69 km away
  2. 3.2176 km E of Atka, Alaska · 1203 days ago · 106 km deep · 56 km away
  3. 3.7107 km E of Atka, Alaska · 1206 days ago · 76 km deep · 56 km away
  4. 2.343 km E of Atka, Alaska · 1207 days ago · 153 km deep · 95 km away
  5. 3.481 km NE of Atka, Alaska · 1219 days ago · 180 km deep · 76 km away
  6. 3.0108 km E of Atka, Alaska · 1219 days ago · 10 km deep · 72 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000kpad (also filed as ak02384rl1rj). Read Thu, Oct 1, 2026, 6:28 AM UTC.