Alaska earthquakes

M3.8 earthquake 177 km SSE of Adak, Alaska

A magnitude 3.8 earthquake struck 177 km SSE of Adak, Alaska on Wed, Dec 6, 2023, 6:37 PM HAST (04:37 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M6.1 116 km SE of Adak, Alaska. This one was a foreshock.

More in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
3.8 (mb, body-wave), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-12-07 04:37:28 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
50.489° N, 175.359° 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 · ±0.227 · 7 stations
3.2ML, 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 6.4 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.23
Depth from
Operator assigned
Station coverage gap
224°, poorly surrounded by stations
Stations used
39

Nearby

Within 100 km, magnitude 1.5 and up: 45 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 2.8185 km S of Atka, Alaska · 1024 days ago · 10 km deep · 53 km away
  2. 2.9116 km ESE of Adak, Alaska · 1018 days ago · 10 km deep · 94 km away
  3. 6.1116 km SE of Adak, Alaska · 1015 days ago · 20 km deep · 80 km away · felt by 3 · tsunami flag
  4. 3.3108 km ESE of Adak, Alaska · 1015 days ago · 34 km deep · 97 km away
  5. 2.6109 km SE of Adak, Alaska · 1015 days ago · 25 km deep · 87 km away
  6. 3.2113 km SE of Adak, Alaska · 1015 days ago · 35 km deep · 82 km away
  7. 2.9110 km SE of Adak, Alaska · 1015 days ago · 35 km deep · 92 km away
  8. 2.8108 km SE of Adak, Alaska · 1015 days ago · 29 km deep · 86 km away
  9. 3.1109 km SE of Adak, Alaska · 1015 days ago · 35 km deep · 88 km away
  10. 2.7107 km ESE of Adak, Alaska · 1015 days ago · 21 km deep · 99 km away
  11. 4.6119 km SE of Adak, Alaska · 1015 days ago · 18 km deep · 83 km away · felt by 1
  12. 3.0114 km SE of Adak, Alaska · 1015 days ago · 35 km deep · 80 km away
  13. 4.7120 km SE of Adak, Alaska · 1015 days ago · 29 km deep · 83 km away
  14. 3.3128 km SE of Adak, Alaska · 1014 days ago · 35 km deep · 72 km away
  15. 3.6116 km SE of Adak, Alaska · 1014 days ago · 35 km deep · 80 km away
  16. 2.7107 km SE of Adak, Alaska · 1014 days ago · 35 km deep · 90 km away
  17. 4.1105 km SE of Adak, Alaska · 1014 days ago · 38 km deep · 90 km away
  18. 3.8106 km SE of Adak, Alaska · 1014 days ago · 35 km deep · 90 km away
  19. 4.0114 km SE of Adak, Alaska · 1014 days ago · 34 km deep · 82 km away
  20. 3.0112 km SE of Adak, Alaska · 1014 days ago · 10 km deep · 82 km away
  21. 3.3117 km SE of Adak, Alaska · 1013 days ago · 10 km deep · 87 km away
  22. 2.9105 km ESE of Adak, Alaska · 1013 days ago · 35 km deep · 99 km away
  23. 4.1110 km SE of Adak, Alaska · 1013 days ago · 42 km deep · 84 km away · felt by 1
  24. 2.6111 km SE of Adak, Alaska · 1013 days ago · 16 km deep · 85 km away
  25. 4.0113 km SE of Adak, Alaska · 1013 days ago · 22 km deep · 82 km away
  26. 2.1108 km SE of Adak, Alaska · 1013 days ago · 13 km deep · 86 km away
  27. 2.6120 km SE of Adak, Alaska · 1012 days ago · 10 km deep · 77 km away
  28. 3.6110 km ESE of Adak, Alaska · 1012 days ago · 30 km deep · 94 km away
  29. 2.3224 km SSE of Adak, Alaska · 1012 days ago · 10 km deep · 48 km away
  30. 1.9105 km ESE of Adak, Alaska · 1011 days ago · 26 km deep · 99 km away
  31. 3.7110 km SE of Adak, Alaska · 1011 days ago · 35 km deep · 86 km away
  32. 2.0103 km ESE of Adak, Alaska · 1011 days ago · 26 km deep · 99 km away
  33. 3.2109 km ESE of Adak, Alaska · 1010 days ago · 28 km deep · 98 km away
  34. 3.0108 km SE of Adak, Alaska · 1009 days ago · 35 km deep · 93 km away
  35. 3.9109 km ESE of Adak, Alaska · 1009 days ago · 35 km deep · 96 km away
  36. 2.3131 km SE of Adak, Alaska · 1007 days ago · 26 km deep · 76 km away
  37. 4.1115 km ESE of Adak, Alaska · 1006 days ago · 39 km deep · 86 km away
  38. 3.8124 km SE of Adak, Alaska · 1006 days ago · 35 km deep · 82 km away
  39. 3.0118 km SE of Adak, Alaska · 1006 days ago · 10 km deep · 71 km away
  40. 3.0207 km S of Atka, Alaska · 1004 days ago · 10 km deep · 53 km away
  41. 3.5113 km SE of Adak, Alaska · 995 days ago · 35 km deep · 90 km away
  42. 4.9124 km SSW of Atka, Alaska · 995 days ago · 10 km deep · 82 km away
  43. 3.3129 km SSW of Atka, Alaska · 994 days ago · 35 km deep · 77 km away
  44. 3.8129 km SSW of Atka, Alaska · 994 days ago · 25 km deep · 77 km away
  45. 2.8195 km SE of Adak, Alaska · 971 days ago · 10 km deep · 28 km away

Before

  1. 2.3129 km SSE of Adak, Alaska · 1033 days ago · 29 km deep · 48 km away
  2. 2.5181 km S of Adak, Alaska · 1035 days ago · 10 km deep · 64 km away
  3. 3.2198 km SE of Adak, Alaska · 1041 days ago · 10 km deep · 32 km away
  4. 2.6175 km S of Adak, Alaska · 1047 days ago · 10 km deep · 63 km away
  5. 2.9169 km S of Atka, Alaska · 1050 days ago · 10 km deep · 95 km away
  6. 3.2201 km SSW of Atka, Alaska · 1058 days ago · 24 km deep · 36 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000limv (also filed as ak023fo0v2rg). Read Thu, Oct 1, 2026, 8:12 AM UTC.