Alaska earthquakes

M2.3 earthquake 223 km W of Adak, Alaska

A magnitude 2.3 earthquake struck 223 km W of Adak, Alaska on Mon, May 18, 2020, 7:49 AM HADT (16:49 UTC), 84 km (52 mi) below the surface.

A larger quake followed: M5.2 186 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
2020-05-18 16:49:57 UTC
Depth
84.0 km (52.2 mi), intermediate-depth
Epicenter
51.796° N, 179.874° 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
24

Nearby

Within 100 km, magnitude 1.5 and up: 113 in the 60 days after this one and 54 in the 30 days before it.

After

  1. 2.8298 km W of Adak, Alaska · 2325 days ago · 91 km deep · 75 km away
  2. 2.1192 km WSW of Adak, Alaska · 2325 days ago · 26 km deep · 87 km away
  3. 3.9242 km WSW of Adak, Alaska · 2325 days ago · 38 km deep · 73 km away
  4. 3.6134 km W of Adak, Alaska · 2323 days ago · 134 km deep · 90 km away
  5. 2.2196 km W of Adak, Alaska · 2323 days ago · 69 km deep · 32 km away
  6. 1.8150 km WSW of Adak, Alaska · 2321 days ago · 11 km deep · 93 km away
  7. 2.2242 km WSW of Adak, Alaska · 2321 days ago · 18 km deep · 74 km away
  8. 1.7178 km W of Adak, Alaska · 2320 days ago · 9 km deep · 46 km away
  9. 2.8270 km WSW of Adak, Alaska · 2319 days ago · 58 km deep · 58 km away
  10. 3.9240 km WSW of Adak, Alaska · 2318 days ago · 35 km deep · 59 km away
  11. 2.6266 km WSW of Adak, Alaska · 2318 days ago · 69 km deep · 55 km away
  12. 2.0Rat Islands, Aleutian Islands, Alaska · 2318 days ago · 89 km deep · 39 km away
  13. 2.5247 km WSW of Adak, Alaska · 2317 days ago · 10 km deep · 85 km away
  14. 1.9173 km WSW of Adak, Alaska · 2316 days ago · 24 km deep · 73 km away
  15. 1.8142 km WSW of Adak, Alaska · 2316 days ago · 7 km deep · 92 km away
  16. 2.3246 km WSW of Adak, Alaska · 2316 days ago · 16 km deep · 75 km away
  17. 2.4210 km W of Adak, Alaska · 2316 days ago · 102 km deep · 17 km away
  18. 1.5242 km W of Adak, Alaska · 2315 days ago · 27 km deep · 21 km away
  19. 2.1240 km WSW of Adak, Alaska · 2314 days ago · 8 km deep · 97 km away
  20. 1.9167 km W of Adak, Alaska · 2314 days ago · 8 km deep · 57 km away
  21. 2.1258 km WSW of Adak, Alaska · 2314 days ago · 6 km deep · 62 km away
  22. 2.5260 km WSW of Adak, Alaska · 2314 days ago · 7 km deep · 71 km away
  23. 2.9255 km W of Adak, Alaska · 2313 days ago · 104 km deep · 33 km away
  24. 2.2233 km W of Adak, Alaska · 2313 days ago · 126 km deep · 15 km away
  25. 2.1149 km W of Adak, Alaska · 2312 days ago · 93 km deep · 76 km away
  26. 2.9188 km WNW of Adak, Alaska · 2312 days ago · 237 km deep · 67 km away
  27. 2.6257 km W of Adak, Alaska · 2312 days ago · 98 km deep · 34 km away
  28. 1.9260 km W of Adak, Alaska · 2312 days ago · 7 km deep · 46 km away
  29. 2.1153 km W of Adak, Alaska · 2311 days ago · 77 km deep · 74 km away
  30. 1.7201 km WSW of Adak, Alaska · 2311 days ago · 20 km deep · 79 km away
  31. 1.8228 km WSW of Adak, Alaska · 2311 days ago · 68 km deep · 36 km away
  32. 1.9269 km W of Adak, Alaska · 2311 days ago · 75 km deep · 46 km away
  33. 2.0205 km W of Adak, Alaska · 2310 days ago · 80 km deep · 29 km away
  34. 1.7280 km W of Adak, Alaska · 2310 days ago · 69 km deep · 57 km away
  35. 1.5238 km W of Adak, Alaska · 2308 days ago · 74 km deep · 26 km away
  36. 1.8208 km W of Adak, Alaska · 2307 days ago · 72 km deep · 28 km away
  37. 2.1Rat Islands, Aleutian Islands, Alaska · 2305 days ago · 89 km deep · 95 km away
  38. 2.8231 km W of Adak, Alaska · 2304 days ago · 94 km deep · 13 km away
  39. 1.5242 km WSW of Adak, Alaska · 2304 days ago · 26 km deep · 87 km away
  40. 1.8241 km W of Adak, Alaska · 2304 days ago · 71 km deep · 26 km away
  41. 2.2147 km W of Adak, Alaska · 2303 days ago · 13 km deep · 75 km away
  42. 2.8264 km W of Adak, Alaska · 2302 days ago · 90 km deep · 45 km away
  43. 2.6127 km W of Adak, Alaska · 2302 days ago · 162 km deep · 96 km away
  44. 1.9169 km WSW of Adak, Alaska · 2299 days ago · 20 km deep · 92 km away
  45. 2.6233 km WSW of Adak, Alaska · 2298 days ago · 82 km deep · 33 km away
  46. 1.5186 km WSW of Adak, Alaska · 2297 days ago · 21 km deep · 72 km away
  47. 2.2289 km W of Adak, Alaska · 2297 days ago · 151 km deep · 69 km away
  48. 2.0260 km WSW of Adak, Alaska · 2294 days ago · 52 km deep · 58 km away
  49. 1.8166 km WSW of Adak, Alaska · 2294 days ago · 13 km deep · 84 km away
  50. 5.1185 km WSW of Adak, Alaska · 2294 days ago · 33 km deep · 89 km away
  51. 5.2186 km WSW of Adak, Alaska · 2294 days ago · 33 km deep · 89 km away · tsunami flag
  52. 2.5190 km WSW of Adak, Alaska · 2294 days ago · 35 km deep · 80 km away
  53. 3.8188 km WSW of Adak, Alaska · 2294 days ago · 31 km deep · 93 km away
  54. 1.5190 km WSW of Adak, Alaska · 2294 days ago · 18 km deep · 87 km away
  55. 3.8188 km WSW of Adak, Alaska · 2292 days ago · 39 km deep · 89 km away
  56. 2.2295 km WSW of Adak, Alaska · 2292 days ago · 23 km deep · 90 km away
  57. 1.6151 km WSW of Adak, Alaska · 2292 days ago · 20 km deep · 96 km away
  58. 1.6237 km WSW of Adak, Alaska · 2291 days ago · 13 km deep · 82 km away
  59. 2.3196 km W of Adak, Alaska · 2291 days ago · 79 km deep · 40 km away
  60. 2.5238 km WSW of Adak, Alaska · 2290 days ago · 14 km deep · 81 km away

The first 60 of 113.

Before

  1. 3.2238 km WSW of Adak, Alaska · 2325 days ago · 68 km deep · 40 km away
  2. 1.7148 km WSW of Adak, Alaska · 2326 days ago · 12 km deep · 89 km away
  3. 2.0200 km WSW of Adak, Alaska · 2327 days ago · 13 km deep · 61 km away
  4. 1.8225 km WSW of Adak, Alaska · 2328 days ago · 12 km deep · 56 km away
  5. 1.9215 km WSW of Adak, Alaska · 2329 days ago · 26 km deep · 81 km away
  6. 2.7241 km W of Adak, Alaska · 2329 days ago · 91 km deep · 21 km away
  7. 1.8229 km W of Adak, Alaska · 2329 days ago · 92 km deep · 12 km away
  8. 2.7177 km WSW of Adak, Alaska · 2331 days ago · 35 km deep · 84 km away
  9. 3.0Rat Islands, Aleutian Islands, Alaska · 2331 days ago · 54 km deep · 96 km away
  10. 4.3211 km W of Adak, Alaska · 2332 days ago · 96 km deep · 14 km away
  11. 2.5248 km W of Adak, Alaska · 2332 days ago · 179 km deep · 42 km away
  12. 1.8263 km WSW of Adak, Alaska · 2332 days ago · 72 km deep · 51 km away
  13. 2.0295 km W of Adak, Alaska · 2332 days ago · 26 km deep · 77 km away
  14. 1.9243 km WSW of Adak, Alaska · 2333 days ago · 61 km deep · 38 km away
  15. 2.8250 km WSW of Adak, Alaska · 2336 days ago · 63 km deep · 62 km away
  16. 2.6195 km WSW of Adak, Alaska · 2337 days ago · 17 km deep · 49 km away
  17. 2.6218 km W of Adak, Alaska · 2337 days ago · 76 km deep · 14 km away
  18. 2.7Rat Islands, Aleutian Islands, Alaska · 2337 days ago · 35 km deep · 92 km away
  19. 1.9284 km WSW of Adak, Alaska · 2337 days ago · 46 km deep · 74 km away
  20. 1.9251 km W of Adak, Alaska · 2338 days ago · 70 km deep · 35 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0206e5isuc. Read Tue, Sep 29, 2026, 9:53 PM UTC.