Alaska earthquakes

M4.7 earthquake 204 km SE of Chiniak, Alaska

A magnitude 4.7 earthquake struck 204 km SE of Chiniak, Alaska on Tue, Jan 23, 2018, 1:43 AM AKST (10:43 UTC), 20 km (12 mi) below the surface.

A larger quake followed: M5.5 256 km ESE of Chiniak, Alaska. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
4.7 (mb), light
Local time
UTC
2018-01-23 10:43:32 UTC
Depth
19.7 km (12.3 mi), shallow
Epicenter
56.379° N, 149.782° W
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.

Location uncertainty
About 7.1 km horizontally, 4.7 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
140°
Stations used
133

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.7 and up: at least 201 in the 60 days after this one and 27 in the 30 days before it.

After

  1. 3.7213 km SE of Chiniak, Alaska · 3171 days ago · 21 km deep · 17 km away
  2. 3.8234 km SE of Chiniak, Alaska · 3171 days ago · 21 km deep · 32 km away
  3. 3.5230 km SE of Chiniak, Alaska · 3171 days ago · 20 km deep · 30 km away
  4. 3.8219 km SE of Chiniak, Alaska · 3171 days ago · 30 km deep · 47 km away
  5. 3.7237 km SE of Chiniak, Alaska · 3171 days ago · 20 km deep · 34 km away
  6. 4.3Gulf of Alaska · 3171 days ago · 14 km deep · 69 km away
  7. 3.5260 km SE of Chiniak, Alaska · 3171 days ago · 7 km deep · 67 km away
  8. 3.9224 km SE of Chiniak, Alaska · 3171 days ago · 20 km deep · 25 km away
  9. 3.4270 km SE of Chiniak, Alaska · 3171 days ago · 9 km deep · 69 km away
  10. 3.5201 km SE of Chiniak, Alaska · 3171 days ago · 21 km deep · 10 km away
  11. 3.8238 km SE of Chiniak, Alaska · 3171 days ago · 20 km deep · 50 km away
  12. 4.0244 km SE of Chiniak, Alaska · 3171 days ago · 10 km deep · 61 km away
  13. 3.8231 km SE of Chiniak, Alaska · 3171 days ago · 20 km deep · 28 km away
  14. 3.5257 km ESE of Chiniak, Alaska · 3171 days ago · 20 km deep · 76 km away
  15. 3.9233 km SE of Chiniak, Alaska · 3171 days ago · 23 km deep · 29 km away
  16. 3.4245 km ESE of Chiniak, Alaska · 3171 days ago · 20 km deep · 64 km away
  17. 4.3Gulf of Alaska · 3171 days ago · 20 km deep · 46 km away
  18. 3.7221 km SE of Chiniak, Alaska · 3171 days ago · 10 km deep · 48 km away
  19. 3.9287 km SE of Chiniak, Alaska · 3171 days ago · 9 km deep · 83 km away
  20. 3.7275 km SE of Chiniak, Alaska · 3171 days ago · 8 km deep · 72 km away
  21. 3.9216 km SE of Chiniak, Alaska · 3171 days ago · 25 km deep · 24 km away
  22. 4.5236 km SE of Chiniak, Alaska · 3171 days ago · 15 km deep · 33 km away · felt by 2
  23. 3.7238 km SE of Chiniak, Alaska · 3171 days ago · 22 km deep · 41 km away
  24. 4.4231 km SE of Chiniak, Alaska · 3171 days ago · 19 km deep · 30 km away
  25. 5.0228 km SE of Chiniak, Alaska · 3171 days ago · 17 km deep · 31 km away
  26. 3.7265 km SE of Chiniak, Alaska · 3171 days ago · 7 km deep · 66 km away
  27. 4.1233 km SE of Chiniak, Alaska · 3171 days ago · 7 km deep · 45 km away
  28. 5.5228 km SE of Chiniak, Alaska · 3171 days ago · 33 km deep · 41 km away · felt by 3
  29. 4.0276 km SE of Chiniak, Alaska · 3171 days ago · 7 km deep · 76 km away
  30. 3.7209 km SSE of Chiniak, Alaska · 3171 days ago · 27 km deep · 52 km away
  31. 3.3210 km SE of Chiniak, Alaska · 3171 days ago · 20 km deep · 11 km away
  32. 3.7262 km ESE of Chiniak, Alaska · 3171 days ago · 24 km deep · 79 km away
  33. 3.7243 km SE of Chiniak, Alaska · 3171 days ago · 7 km deep · 50 km away
  34. 4.3212 km SSE of Chiniak, Alaska · 3171 days ago · 10 km deep · 59 km away
  35. 3.5250 km SE of Chiniak, Alaska · 3171 days ago · 7 km deep · 64 km away
  36. 4.2243 km SE of Chiniak, Alaska · 3171 days ago · 10 km deep · 49 km away
  37. 4.2256 km ESE of Chiniak, Alaska · 3171 days ago · 8 km deep · 79 km away
  38. 3.8252 km SE of Chiniak, Alaska · 3171 days ago · 22 km deep · 48 km away
  39. 3.8289 km SE of Chiniak, Alaska · 3171 days ago · 20 km deep · 87 km away
  40. 4.8288 km SE of Chiniak, Alaska · 3171 days ago · 6 km deep · 88 km away · felt by 3
  41. 3.4222 km SE of Chiniak, Alaska · 3171 days ago · 21 km deep · 18 km away
  42. 4.3235 km SE of Chiniak, Alaska · 3171 days ago · 17 km deep · 41 km away
  43. 3.7264 km SE of Chiniak, Alaska · 3171 days ago · 6 km deep · 60 km away
  44. 4.1254 km ESE of Chiniak, Alaska · 3171 days ago · 19 km deep · 73 km away
  45. 3.3244 km SE of Chiniak, Alaska · 3171 days ago · 7 km deep · 58 km away
  46. 3.3246 km SE of Chiniak, Alaska · 3171 days ago · 20 km deep · 43 km away
  47. 3.3230 km SE of Chiniak, Alaska · 3171 days ago · 21 km deep · 32 km away
  48. 3.2219 km SE of Chiniak, Alaska · 3171 days ago · 20 km deep · 27 km away
  49. 4.1229 km SE of Chiniak, Alaska · 3171 days ago · 19 km deep · 33 km away
  50. 3.5245 km SE of Chiniak, Alaska · 3171 days ago · 20 km deep · 41 km away
  51. 2.8232 km SE of Chiniak, Alaska · 3171 days ago · 21 km deep · 28 km away
  52. 4.1209 km SSE of Chiniak, Alaska · 3171 days ago · 10 km deep · 51 km away
  53. 3.3254 km SE of Chiniak, Alaska · 3171 days ago · 10 km deep · 62 km away
  54. 3.5241 km ESE of Chiniak, Alaska · 3171 days ago · 10 km deep · 61 km away
  55. 3.6225 km SE of Chiniak, Alaska · 3171 days ago · 10 km deep · 31 km away
  56. 4.2261 km ESE of Chiniak, Alaska · 3171 days ago · 10 km deep · 71 km away
  57. 4.2210 km SSE of Chiniak, Alaska · 3171 days ago · 10 km deep · 65 km away
  58. 3.5255 km ESE of Chiniak, Alaska · 3171 days ago · 10 km deep · 77 km away
  59. 3.3198 km SE of Chiniak, Alaska · 3171 days ago · 10 km deep · 31 km away
  60. 3.4219 km SE of Chiniak, Alaska · 3171 days ago · 10 km deep · 41 km away

The first 60 of at least 201.

Before

  1. 4.5275 km SE of Chiniak, Alaska · 3171 days ago · 9 km deep · 73 km away
  2. 3.6230 km SE of Chiniak, Alaska · 3171 days ago · 21 km deep · 27 km away
  3. 3.2225 km SE of Chiniak, Alaska · 3171 days ago · 20 km deep · 26 km away
  4. 3.9267 km SE of Chiniak, Alaska · 3171 days ago · 9 km deep · 65 km away
  5. 4.2250 km SE of Chiniak, Alaska · 3171 days ago · 17 km deep · 47 km away
  6. 4.2248 km SE of Chiniak, Alaska · 3171 days ago · 19 km deep · 44 km away
  7. 3.6212 km SE of Chiniak, Alaska · 3171 days ago · 20 km deep · 19 km away
  8. 3.7Gulf of Alaska · 3171 days ago · 21 km deep · 28 km away
  9. 3.7253 km ESE of Chiniak, Alaska · 3171 days ago · 20 km deep · 65 km away
  10. 3.9267 km SE of Chiniak, Alaska · 3171 days ago · 24 km deep · 66 km away
  11. 4.5228 km SE of Chiniak, Alaska · 3171 days ago · 16 km deep · 36 km away
  12. 3.6210 km SE of Chiniak, Alaska · 3171 days ago · 19 km deep · 18 km away
  13. 4.1205 km SE of Chiniak, Alaska · 3171 days ago · 20 km deep · 11 km away
  14. 5.0260 km SE of Chiniak, Alaska · 3171 days ago · 13 km deep · 63 km away · felt by 3
  15. 3.0257 km ESE of Chiniak, Alaska · 3171 days ago · 21 km deep · 71 km away
  16. 4.3249 km SE of Chiniak, Alaska · 3171 days ago · 19 km deep · 46 km away
  17. 4.5256 km SE of Chiniak, Alaska · 3171 days ago · 17 km deep · 53 km away
  18. 4.7225 km SE of Chiniak, Alaska · 3171 days ago · 14 km deep · 28 km away · felt by 1
  19. 4.1283 km ESE of Chiniak, Alaska · 3171 days ago · 18 km deep · 91 km away
  20. 4.8245 km SE of Chiniak, Alaska · 3171 days ago · 17 km deep · 41 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000cefy. Read Tue, Sep 29, 2026, 8:25 PM UTC.