Alaska earthquakes

M1.9 earthquake 38 km SW of Unalaska, Alaska

A magnitude 1.9 earthquake struck 38 km SW of Unalaska, Alaska on Tue, Sep 1, 2020, 6:37 AM AKDT (14:37 UTC), 76 km (47 mi) below the surface.

A larger quake followed: M3.5 29 km WSW of Dutch Harbor, 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
1.9 (ml), micro
Local time
UTC
2020-09-01 14:37:52 UTC
Depth
76.0 km (47.2 mi), intermediate-depth
Epicenter
53.611° N, 166.904° 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
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 52 in the 60 days after this one and 42 in the 30 days before it.

After

  1. 1.546 km ESE of Unalaska, Alaska · 2217 days ago · 34 km deep · 66 km away
  2. 3.1104 km S of Unalaska, Alaska · 2216 days ago · 40 km deep · 76 km away
  3. 2.170 km WSW of Unalaska, Alaska · 2214 days ago · 6 km deep · 36 km away
  4. 1.614 km SSW of Unalaska, Alaska · 2213 days ago · 82 km deep · 24 km away
  5. 1.881 km WSW of Unalaska, Alaska · 2213 days ago · 81 km deep · 46 km away
  6. 1.8Fox Islands, Aleutian Islands, Alaska · 2211 days ago · 1 km deep · 96 km away
  7. 2.183 km S of Unalaska, Alaska · 2210 days ago · 26 km deep · 54 km away
  8. 3.281 km SSW of Unalaska, Alaska · 2210 days ago · 35 km deep · 51 km away
  9. 2.929 km SW of Unalaska, Alaska · 2210 days ago · 77 km deep · 8 km away
  10. 1.915 km WSW of Dutch Harbor, Alaska · 2208 days ago · 3 km deep · 28 km away
  11. 2.378 km NE of Nikolski, Alaska · 2208 days ago · 144 km deep · 82 km away
  12. 1.615 km WSW of Dutch Harbor, Alaska · 2208 days ago · 7 km deep · 29 km away
  13. 3.241 km ESE of Unalaska, Alaska · 2208 days ago · 36 km deep · 65 km away
  14. 1.986 km SE of Unalaska, Alaska · 2207 days ago · 49 km deep · 89 km away
  15. 2.927 km ENE of Dutch Harbor, Alaska · 2207 days ago · 105 km deep · 65 km away
  16. 3.377 km SSE of Unalaska, Alaska · 2206 days ago · 58 km deep · 69 km away
  17. 1.816 km SSW of Akutan, Alaska · 2205 days ago · 77 km deep · 82 km away
  18. 1.820 km NE of Dutch Harbor, Alaska · 2203 days ago · 99 km deep · 60 km away
  19. 1.891 km E of Nikolski, Alaska · 2202 days ago · 48 km deep · 80 km away
  20. 1.568 km SW of Unalaska, Alaska · 2202 days ago · 13 km deep · 31 km away
  21. 1.991 km E of Nikolski, Alaska · 2200 days ago · 26 km deep · 94 km away
  22. 2.558 km S of Unalaska, Alaska · 2200 days ago · 72 km deep · 33 km away
  23. 3.2100 km E of Nikolski, Alaska · 2200 days ago · 35 km deep · 97 km away
  24. 3.394 km E of Nikolski, Alaska · 2200 days ago · 35 km deep · 95 km away
  25. 2.283 km WSW of Unalaska, Alaska · 2198 days ago · 118 km deep · 52 km away
  26. 2.883 km E of Nikolski, Alaska · 2198 days ago · 58 km deep · 77 km away
  27. 1.871 km SE of Unalaska, Alaska · 2197 days ago · 24 km deep · 81 km away
  28. 1.538 km SE of Unalaska, Alaska · 2192 days ago · 32 km deep · 48 km away
  29. 3.2Fox Islands, Aleutian Islands, Alaska · 2188 days ago · 35 km deep · 83 km away
  30. 1.887 km SSW of Unalaska, Alaska · 2187 days ago · 17 km deep · 53 km away
  31. 1.896 km SSW of Unalaska, Alaska · 2187 days ago · 39 km deep · 59 km away
  32. 1.949 km SSE of Akutan, Alaska · 2187 days ago · 58 km deep · 87 km away
  33. 1.644 km S of Akutan, Alaska · 2184 days ago · 24 km deep · 73 km away
  34. 1.761 km S of Unalaska, Alaska · 2180 days ago · 43 km deep · 41 km away
  35. 1.871 km S of Unalaska, Alaska · 2179 days ago · 28 km deep · 52 km away
  36. 1.540 km S of Unalaska, Alaska · 2179 days ago · 61 km deep · 20 km away
  37. 2.765 km SW of Unalaska, Alaska · 2179 days ago · 10 km deep · 28 km away
  38. 1.945 km SW of Unalaska, Alaska · 2178 days ago · 27 km deep · 9 km away
  39. 1.768 km SE of Unalaska, Alaska · 2178 days ago · 38 km deep · 71 km away
  40. 1.974 km SW of Unalaska, Alaska · 2178 days ago · 71 km deep · 39 km away
  41. 1.667 km SE of Unalaska, Alaska · 2178 days ago · 49 km deep · 70 km away
  42. 3.529 km WSW of Dutch Harbor, Alaska · 2177 days ago · 107 km deep · 24 km away
  43. 2.070 km SSW of Unalaska, Alaska · 2174 days ago · 67 km deep · 33 km away
  44. 1.747 km SSE of Unalaska, Alaska · 2174 days ago · 52 km deep · 51 km away
  45. 1.779 km S of Unalaska, Alaska · 2173 days ago · 25 km deep · 49 km away
  46. 3.054 km SE of Unalaska, Alaska · 2172 days ago · 56 km deep · 69 km away
  47. 2.175 km E of Nikolski, Alaska · 2170 days ago · 37 km deep · 85 km away
  48. 2.622 km SSW of Akutan, Alaska · 2170 days ago · 92 km deep · 73 km away
  49. 2.555 km SE of Unalaska, Alaska · 2167 days ago · 59 km deep · 59 km away
  50. 1.568 km SSE of Akutan, Alaska · 2167 days ago · 19 km deep · 97 km away
  51. 1.968 km WSW of Unalaska, Alaska · 2163 days ago · 86 km deep · 37 km away
  52. 1.773 km S of Akutan, Alaska · 2163 days ago · 43 km deep · 87 km away

Before

  1. 2.2103 km SSW of Unalaska, Alaska · 2223 days ago · 78 km deep · 69 km away
  2. 1.715 km W of Dutch Harbor, Alaska · 2224 days ago · 7 km deep · 30 km away
  3. 1.861 km WSW of Unalaska, Alaska · 2225 days ago · 10 km deep · 29 km away
  4. 1.542 km SW of Unalaska, Alaska · 2225 days ago · 17 km deep · 12 km away
  5. 1.814 km WSW of Dutch Harbor, Alaska · 2227 days ago · 8 km deep · 29 km away
  6. 1.877 km E of Nikolski, Alaska · 2228 days ago · 37 km deep · 89 km away
  7. 1.515 km WSW of Dutch Harbor, Alaska · 2228 days ago · 6 km deep · 29 km away
  8. 2.682 km E of Nikolski, Alaska · 2228 days ago · 32 km deep · 90 km away
  9. 1.676 km SSW of Unalaska, Alaska · 2230 days ago · 30 km deep · 47 km away
  10. 1.514 km WSW of Dutch Harbor, Alaska · 2230 days ago · 10 km deep · 28 km away
  11. 2.588 km E of Nikolski, Alaska · 2232 days ago · 28 km deep · 73 km away
  12. 1.566 km SW of Unalaska, Alaska · 2233 days ago · 97 km deep · 30 km away
  13. 1.714 km WSW of Dutch Harbor, Alaska · 2233 days ago · 6 km deep · 29 km away
  14. 3.690 km SSE of Unalaska, Alaska · 2234 days ago · 35 km deep · 88 km away
  15. 1.681 km SE of Unalaska, Alaska · 2234 days ago · 25 km deep · 89 km away
  16. 1.677 km S of Akutan, Alaska · 2234 days ago · 25 km deep · 90 km away
  17. 1.5103 km SSW of Unalaska, Alaska · 2234 days ago · 48 km deep · 66 km away
  18. 2.061 km SW of Unalaska, Alaska · 2235 days ago · 14 km deep · 27 km away
  19. 1.962 km SW of Unalaska, Alaska · 2235 days ago · 6 km deep · 26 km away
  20. 3.668 km SE of Unalaska, Alaska · 2235 days ago · 38 km deep · 77 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak020b9f84xv. Read Wed, Sep 30, 2026, 9:02 PM UTC.