Alaska earthquakes

M2.3 earthquake 188 km W of Adak, Alaska

A magnitude 2.3 earthquake struck 188 km W of Adak, Alaska on Wed, Jan 20, 2021, 4:44 PM HAST (02:44 UTC), 95 km (59 mi) below the surface.

A larger quake followed: M4.8 184 km WSW of Adak, 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
2.3 (ml), micro
Local time
UTC
2021-01-21 02:44:05 UTC
Depth
95.1 km (59.1 mi), intermediate-depth
Epicenter
52.032° N, 179.368° 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
20

Nearby

Within 100 km, magnitude 1.5 and up: 41 in the 60 days after this one and 22 in the 30 days before it.

After

  1. 1.6126 km WSW of Adak, Alaska · 2075 days ago · 7 km deep · 80 km away
  2. 2.1194 km W of Adak, Alaska · 2075 days ago · 89 km deep · 41 km away
  3. 1.9131 km W of Adak, Alaska · 2073 days ago · 94 km deep · 67 km away
  4. 2.1162 km W of Adak, Alaska · 2073 days ago · 92 km deep · 49 km away
  5. 1.9137 km WSW of Adak, Alaska · 2073 days ago · 25 km deep · 99 km away
  6. 2.1131 km W of Adak, Alaska · 2066 days ago · 115 km deep · 64 km away
  7. 1.9178 km WSW of Adak, Alaska · 2063 days ago · 1 km deep · 57 km away
  8. 1.9149 km WSW of Adak, Alaska · 2061 days ago · 10 km deep · 82 km away
  9. 4.1265 km W of Adak, Alaska · 2052 days ago · 175 km deep · 77 km away
  10. 4.8184 km WSW of Adak, Alaska · 2050 days ago · 23 km deep · 66 km away
  11. 3.3Andreanof Islands, Aleutian Islands, Alaska · 2050 days ago · 35 km deep · 83 km away
  12. 3.5173 km WSW of Adak, Alaska · 2050 days ago · 10 km deep · 58 km away
  13. 2.5122 km WSW of Adak, Alaska · 2047 days ago · 75 km deep · 90 km away
  14. 2.5193 km WSW of Adak, Alaska · 2047 days ago · 27 km deep · 88 km away
  15. 1.8179 km WSW of Adak, Alaska · 2045 days ago · 13 km deep · 87 km away
  16. 2.4109 km W of Adak, Alaska · 2045 days ago · 188 km deep · 89 km away
  17. 3.0235 km W of Adak, Alaska · 2044 days ago · 172 km deep · 48 km away
  18. 2.1111 km W of Adak, Alaska · 2044 days ago · 80 km deep · 84 km away
  19. 1.7126 km WSW of Adak, Alaska · 2044 days ago · 13 km deep · 79 km away
  20. 3.1267 km W of Adak, Alaska · 2043 days ago · 35 km deep · 95 km away
  21. 1.9170 km W of Adak, Alaska · 2042 days ago · 5 km deep · 35 km away
  22. 2.0143 km WSW of Adak, Alaska · 2040 days ago · 25 km deep · 97 km away
  23. 3.7255 km W of Adak, Alaska · 2038 days ago · 83 km deep · 80 km away
  24. 1.8128 km WSW of Adak, Alaska · 2038 days ago · 13 km deep · 77 km away
  25. 2.4220 km W of Adak, Alaska · 2037 days ago · 67 km deep · 32 km away
  26. 2.0116 km WSW of Adak, Alaska · 2037 days ago · 85 km deep · 86 km away
  27. 2.2191 km WSW of Adak, Alaska · 2037 days ago · 67 km deep · 73 km away
  28. 2.0119 km W of Adak, Alaska · 2028 days ago · 9 km deep · 71 km away
  29. 1.6117 km W of Adak, Alaska · 2028 days ago · 15 km deep · 74 km away
  30. 1.8122 km WSW of Adak, Alaska · 2028 days ago · 13 km deep · 86 km away
  31. 1.7176 km W of Adak, Alaska · 2027 days ago · 14 km deep · 33 km away
  32. 2.1179 km WSW of Adak, Alaska · 2026 days ago · 20 km deep · 85 km away
  33. 3.3190 km WSW of Adak, Alaska · 2026 days ago · 68 km deep · 58 km away
  34. 4.3225 km W of Adak, Alaska · 2026 days ago · 158 km deep · 38 km away
  35. 1.5133 km W of Adak, Alaska · 2026 days ago · 7 km deep · 70 km away
  36. 1.7111 km WSW of Adak, Alaska · 2024 days ago · 13 km deep · 98 km away
  37. 3.3Andreanof Islands, Aleutian Islands, Alaska · 2023 days ago · 35 km deep · 92 km away
  38. 1.9133 km WSW of Adak, Alaska · 2021 days ago · 4 km deep · 77 km away
  39. 1.9130 km WSW of Adak, Alaska · 2020 days ago · 58 km deep · 76 km away
  40. 2.2188 km WSW of Adak, Alaska · 2020 days ago · 6 km deep · 85 km away
  41. 3.1224 km W of Adak, Alaska · 2016 days ago · 128 km deep · 46 km away

Before

  1. 2.1126 km WSW of Adak, Alaska · 2075 days ago · 7 km deep · 83 km away
  2. 2.7157 km WSW of Adak, Alaska · 2076 days ago · 17 km deep · 93 km away
  3. 1.8172 km W of Adak, Alaska · 2077 days ago · 11 km deep · 41 km away
  4. 4.0195 km WNW of Adak, Alaska · 2080 days ago · 211 km deep · 31 km away
  5. 2.2141 km WSW of Adak, Alaska · 2087 days ago · 22 km deep · 91 km away
  6. 2.8205 km WSW of Adak, Alaska · 2088 days ago · 35 km deep · 100 km away
  7. 1.5125 km WSW of Adak, Alaska · 2089 days ago · 13 km deep · 100 km away
  8. 4.1193 km WSW of Adak, Alaska · 2089 days ago · 28 km deep · 99 km away
  9. 1.9185 km WSW of Adak, Alaska · 2090 days ago · 12 km deep · 69 km away
  10. 2.1176 km WSW of Adak, Alaska · 2092 days ago · 76 km deep · 59 km away
  11. 4.0231 km WSW of Adak, Alaska · 2092 days ago · 35 km deep · 97 km away
  12. 3.7230 km W of Adak, Alaska · 2093 days ago · 6 km deep · 53 km away
  13. 4.0236 km WSW of Adak, Alaska · 2093 days ago · 31 km deep · 95 km away
  14. 6.1230 km WSW of Adak, Alaska · 2093 days ago · 21 km deep · 95 km away · felt by 3 · tsunami flag
  15. 4.1204 km WSW of Adak, Alaska · 2095 days ago · 35 km deep · 66 km away
  16. 2.7120 km WSW of Adak, Alaska · 2097 days ago · 21 km deep · 85 km away
  17. 2.1111 km WSW of Adak, Alaska · 2097 days ago · 69 km deep · 94 km away
  18. 2.7239 km WSW of Adak, Alaska · 2097 days ago · 35 km deep · 93 km away
  19. 3.2127 km WSW of Adak, Alaska · 2098 days ago · 10 km deep · 91 km away
  20. 2.090 km W of Adak, Alaska · 2101 days ago · 11 km deep · 99 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021yrqlhq. Read Sun, Sep 27, 2026, 4:34 AM UTC.