Alaska earthquakes

M1.8 earthquake 87 km SSW of Unalaska, Alaska

A magnitude 1.8 earthquake struck 87 km SSW of Unalaska, Alaska on Sun, Oct 4, 2020, 3:35 AM AKDT (11:35 UTC), 17 km (11 mi) below the surface.

A larger quake followed: M6.4 46 km ESE of Nikolski, 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
1.8 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2020-10-04 11:35:24 UTC
Depth
17.3 km (10.7 mi), shallow
Epicenter
53.139° N, 167.017° 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.

Stations used
23

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 157 in the 60 days after this one and 29 in the 30 days before it.

After

  1. 1.896 km SSW of Unalaska, Alaska · 2190 days ago · 39 km deep · 18 km away
  2. 3.467 km ESE of Nikolski, Alaska · 2187 days ago · 35 km deep · 77 km away
  3. 5.743 km ESE of Nikolski, Alaska · 2186 days ago · 32 km deep · 94 km away · felt by 1 · tsunami flag
  4. 3.264 km SE of Nikolski, Alaska · 2186 days ago · 27 km deep · 91 km away
  5. 3.144 km ESE of Nikolski, Alaska · 2186 days ago · 35 km deep · 90 km away
  6. 3.457 km ESE of Nikolski, Alaska · 2185 days ago · 35 km deep · 90 km away
  7. 3.659 km ESE of Nikolski, Alaska · 2185 days ago · 30 km deep · 90 km away
  8. 2.956 km ESE of Nikolski, Alaska · 2185 days ago · 34 km deep · 88 km away
  9. 2.860 km ESE of Nikolski, Alaska · 2185 days ago · 35 km deep · 87 km away
  10. 2.961 km SE of Nikolski, Alaska · 2184 days ago · 35 km deep · 92 km away
  11. 2.238 km E of Nikolski, Alaska · 2184 days ago · 54 km deep · 91 km away
  12. 2.951 km ESE of Nikolski, Alaska · 2183 days ago · 29 km deep · 89 km away
  13. 1.761 km S of Unalaska, Alaska · 2183 days ago · 43 km deep · 39 km away
  14. 1.871 km S of Unalaska, Alaska · 2182 days ago · 28 km deep · 41 km away
  15. 1.540 km S of Unalaska, Alaska · 2182 days ago · 61 km deep · 48 km away
  16. 2.765 km SW of Unalaska, Alaska · 2181 days ago · 10 km deep · 34 km away
  17. 1.945 km SW of Unalaska, Alaska · 2181 days ago · 27 km deep · 44 km away
  18. 1.768 km SE of Unalaska, Alaska · 2180 days ago · 38 km deep · 81 km away
  19. 1.974 km SW of Unalaska, Alaska · 2180 days ago · 71 km deep · 49 km away
  20. 1.667 km SE of Unalaska, Alaska · 2180 days ago · 49 km deep · 78 km away
  21. 3.529 km WSW of Dutch Harbor, Alaska · 2179 days ago · 107 km deep · 76 km away
  22. 3.348 km ESE of Nikolski, Alaska · 2178 days ago · 36 km deep · 91 km away
  23. 2.070 km SSW of Unalaska, Alaska · 2177 days ago · 67 km deep · 23 km away
  24. 1.747 km SSE of Unalaska, Alaska · 2177 days ago · 52 km deep · 71 km away
  25. 2.1144 km ESE of Nikolski, Alaska · 2176 days ago · 26 km deep · 75 km away
  26. 1.779 km S of Unalaska, Alaska · 2176 days ago · 25 km deep · 18 km away
  27. 3.2129 km S of Unalaska, Alaska · 2176 days ago · 30 km deep · 51 km away
  28. 3.054 km SE of Unalaska, Alaska · 2175 days ago · 56 km deep · 93 km away
  29. 2.175 km E of Nikolski, Alaska · 2173 days ago · 37 km deep · 50 km away
  30. 4.040 km ESE of Nikolski, Alaska · 2171 days ago · 35 km deep · 99 km away
  31. 2.555 km SE of Unalaska, Alaska · 2170 days ago · 59 km deep · 74 km away
  32. 1.971 km E of Nikolski, Alaska · 2168 days ago · 33 km deep · 61 km away
  33. 2.752 km ESE of Nikolski, Alaska · 2168 days ago · 29 km deep · 92 km away
  34. 1.968 km WSW of Unalaska, Alaska · 2166 days ago · 86 km deep · 61 km away
  35. 3.242 km ESE of Nikolski, Alaska · 2163 days ago · 50 km deep · 95 km away
  36. 4.248 km ESE of Nikolski, Alaska · 2162 days ago · 42 km deep · 89 km away
  37. 3.243 km ESE of Nikolski, Alaska · 2162 days ago · 41 km deep · 90 km away
  38. 2.856 km ESE of Nikolski, Alaska · 2162 days ago · 35 km deep · 90 km away
  39. 3.549 km ESE of Nikolski, Alaska · 2162 days ago · 35 km deep · 93 km away
  40. 3.268 km SW of Unalaska, Alaska · 2161 days ago · 76 km deep · 35 km away
  41. 1.867 km SE of Unalaska, Alaska · 2160 days ago · 29 km deep · 82 km away
  42. 2.272 km SE of Unalaska, Alaska · 2159 days ago · 34 km deep · 97 km away
  43. 3.053 km ESE of Nikolski, Alaska · 2159 days ago · 35 km deep · 92 km away
  44. 2.382 km S of Unalaska, Alaska · 2158 days ago · 25 km deep · 17 km away
  45. 2.175 km SSE of Unalaska, Alaska · 2157 days ago · 21 km deep · 76 km away
  46. 1.531 km SE of Unalaska, Alaska · 2157 days ago · 70 km deep · 83 km away
  47. 1.957 km E of Nikolski, Alaska · 2156 days ago · 23 km deep · 74 km away
  48. 2.9136 km ESE of Nikolski, Alaska · 2155 days ago · 10 km deep · 67 km away
  49. 3.783 km SSW of Unalaska, Alaska · 2155 days ago · 35 km deep · 15 km away
  50. 1.881 km S of Unalaska, Alaska · 2155 days ago · 26 km deep · 19 km away
  51. 3.155 km ESE of Nikolski, Alaska · 2154 days ago · 42 km deep · 85 km away
  52. 1.646 km ESE of Unalaska, Alaska · 2154 days ago · 24 km deep · 98 km away
  53. 1.849 km S of Akutan, Alaska · 2152 days ago · 29 km deep · 99 km away
  54. 1.827 km SSW of Unalaska, Alaska · 2151 days ago · 75 km deep · 60 km away
  55. 3.279 km SSW of Unalaska, Alaska · 2150 days ago · 35 km deep · 14 km away
  56. 1.880 km S of Unalaska, Alaska · 2150 days ago · 26 km deep · 17 km away
  57. 2.290 km S of Unalaska, Alaska · 2148 days ago · 26 km deep · 21 km away
  58. 1.944 km SW of Unalaska, Alaska · 2148 days ago · 15 km deep · 52 km away
  59. 3.639 km E of Nikolski, Alaska · 2148 days ago · 56 km deep · 87 km away
  60. 2.980 km E of Nikolski, Alaska · 2147 days ago · 68 km deep · 45 km away

The first 60 of 157.

Before

  1. 3.2Fox Islands, Aleutian Islands, Alaska · 2191 days ago · 35 km deep · 96 km away
  2. 1.538 km SE of Unalaska, Alaska · 2195 days ago · 32 km deep · 75 km away
  3. 2.236 km ENE of Nikolski, Alaska · 2199 days ago · 107 km deep · 92 km away
  4. 1.871 km SE of Unalaska, Alaska · 2200 days ago · 24 km deep · 95 km away
  5. 2.883 km E of Nikolski, Alaska · 2200 days ago · 58 km deep · 42 km away
  6. 2.283 km WSW of Unalaska, Alaska · 2201 days ago · 118 km deep · 66 km away
  7. 3.394 km E of Nikolski, Alaska · 2202 days ago · 35 km deep · 46 km away
  8. 3.2100 km E of Nikolski, Alaska · 2203 days ago · 35 km deep · 46 km away
  9. 2.558 km S of Unalaska, Alaska · 2203 days ago · 72 km deep · 34 km away
  10. 1.991 km E of Nikolski, Alaska · 2203 days ago · 26 km deep · 46 km away
  11. 1.568 km SW of Unalaska, Alaska · 2204 days ago · 13 km deep · 42 km away
  12. 1.891 km E of Nikolski, Alaska · 2204 days ago · 48 km deep · 36 km away
  13. 3.377 km SSE of Unalaska, Alaska · 2208 days ago · 58 km deep · 64 km away
  14. 1.871 km ESE of Nikolski, Alaska · 2209 days ago · 11 km deep · 77 km away
  15. 1.986 km SE of Unalaska, Alaska · 2209 days ago · 49 km deep · 92 km away
  16. 3.241 km ESE of Unalaska, Alaska · 2210 days ago · 36 km deep · 98 km away
  17. 1.615 km WSW of Dutch Harbor, Alaska · 2210 days ago · 7 km deep · 82 km away
  18. 2.378 km NE of Nikolski, Alaska · 2210 days ago · 144 km deep · 84 km away
  19. 1.915 km WSW of Dutch Harbor, Alaska · 2211 days ago · 3 km deep · 80 km away
  20. 2.929 km SW of Unalaska, Alaska · 2212 days ago · 77 km deep · 60 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak020cry5t1w. Read Sat, Oct 3, 2026, 11:33 AM UTC.