Alaska earthquakes

M1.8 earthquake 246 km WSW of Adak, Alaska

A magnitude 1.8 earthquake struck 246 km WSW of Adak, Alaska on Sat, Sep 19, 2020, 1:46 PM GMT+12 (01:46 UTC), 45 km (28 mi) below the surface.

A larger quake followed: M4.8 193 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
1.8 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2020-09-19 01:46:22 UTC
Depth
44.9 km (27.9 mi), shallow
Epicenter
51.227° N, 179.968° E
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
18

Nearby

Within 100 km, magnitude 1.5 and up: 100 in the 60 days after this one and 65 in the 30 days before it.

After

  1. 1.7213 km WSW of Adak, Alaska · 2204 days ago · 52 km deep · 40 km away
  2. 3.4217 km WSW of Adak, Alaska · 2203 days ago · 10 km deep · 29 km away
  3. 2.9201 km WSW of Adak, Alaska · 2201 days ago · 74 km deep · 49 km away
  4. 2.2186 km WSW of Adak, Alaska · 2201 days ago · 23 km deep · 69 km away
  5. 1.9295 km WSW of Adak, Alaska · 2201 days ago · 50 km deep · 59 km away
  6. 2.0Rat Islands, Aleutian Islands, Alaska · 2200 days ago · 25 km deep · 69 km away
  7. 3.7240 km WSW of Adak, Alaska · 2200 days ago · 19 km deep · 27 km away
  8. 1.8244 km WSW of Adak, Alaska · 2200 days ago · 26 km deep · 29 km away
  9. 1.6241 km WSW of Adak, Alaska · 2200 days ago · 13 km deep · 27 km away
  10. 1.6Rat Islands, Aleutian Islands, Alaska · 2199 days ago · 40 km deep · 81 km away
  11. 1.6152 km WSW of Adak, Alaska · 2199 days ago · 18 km deep · 94 km away
  12. 1.8193 km WSW of Adak, Alaska · 2199 days ago · 68 km deep · 53 km away
  13. 2.0265 km W of Adak, Alaska · 2199 days ago · 91 km deep · 69 km away
  14. 2.0213 km W of Adak, Alaska · 2199 days ago · 144 km deep · 71 km away
  15. 1.8246 km WSW of Adak, Alaska · 2199 days ago · 26 km deep · 21 km away
  16. 3.0252 km W of Adak, Alaska · 2198 days ago · 177 km deep · 83 km away
  17. 2.0299 km WSW of Adak, Alaska · 2198 days ago · 19 km deep · 53 km away
  18. 1.7295 km WSW of Adak, Alaska · 2197 days ago · 17 km deep · 49 km away
  19. 1.7Rat Islands, Aleutian Islands, Alaska · 2197 days ago · 28 km deep · 75 km away
  20. 2.8Rat Islands, Aleutian Islands, Alaska · 2197 days ago · 10 km deep · 64 km away
  21. 1.7295 km WSW of Adak, Alaska · 2197 days ago · 18 km deep · 49 km away
  22. 1.8298 km WSW of Adak, Alaska · 2197 days ago · 18 km deep · 52 km away
  23. 4.0291 km WSW of Adak, Alaska · 2197 days ago · 35 km deep · 46 km away
  24. 1.6297 km WSW of Adak, Alaska · 2197 days ago · 19 km deep · 51 km away
  25. 2.2202 km WSW of Adak, Alaska · 2197 days ago · 5 km deep · 61 km away
  26. 1.8Rat Islands, Aleutian Islands, Alaska · 2197 days ago · 23 km deep · 92 km away
  27. 2.0210 km WSW of Adak, Alaska · 2197 days ago · 13 km deep · 54 km away
  28. 2.0231 km W of Adak, Alaska · 2196 days ago · 168 km deep · 78 km away
  29. 2.1179 km W of Adak, Alaska · 2196 days ago · 96 km deep · 76 km away
  30. 2.1Andreanof Islands, Aleutian Islands, Alaska · 2196 days ago · 9 km deep · 24 km away
  31. 2.0191 km W of Adak, Alaska · 2195 days ago · 80 km deep · 69 km away
  32. 1.7255 km W of Adak, Alaska · 2195 days ago · 87 km deep · 62 km away
  33. 2.0225 km W of Adak, Alaska · 2195 days ago · 90 km deep · 60 km away
  34. 1.8191 km WSW of Adak, Alaska · 2195 days ago · 79 km deep · 59 km away
  35. 1.9212 km WSW of Adak, Alaska · 2193 days ago · 13 km deep · 37 km away
  36. 2.0207 km WSW of Adak, Alaska · 2192 days ago · 25 km deep · 39 km away
  37. 1.8Rat Islands, Aleutian Islands, Alaska · 2192 days ago · 42 km deep · 82 km away
  38. 1.8293 km WSW of Adak, Alaska · 2192 days ago · 53 km deep · 59 km away
  39. 4.2Rat Islands, Aleutian Islands, Alaska · 2191 days ago · 26 km deep · 70 km away
  40. 1.7Rat Islands, Aleutian Islands, Alaska · 2191 days ago · 23 km deep · 64 km away
  41. 3.1Rat Islands, Aleutian Islands, Alaska · 2191 days ago · 27 km deep · 69 km away
  42. 1.6Rat Islands, Aleutian Islands, Alaska · 2191 days ago · 21 km deep · 60 km away
  43. 3.4Rat Islands, Aleutian Islands, Alaska · 2191 days ago · 27 km deep · 68 km away
  44. 2.6202 km WSW of Adak, Alaska · 2191 days ago · 57 km deep · 44 km away
  45. 4.8193 km WSW of Adak, Alaska · 2189 days ago · 40 km deep · 55 km away
  46. 2.8193 km WSW of Adak, Alaska · 2189 days ago · 34 km deep · 59 km away
  47. 2.8251 km W of Adak, Alaska · 2189 days ago · 110 km deep · 67 km away
  48. 2.5253 km W of Adak, Alaska · 2189 days ago · 110 km deep · 60 km away
  49. 2.1205 km W of Adak, Alaska · 2188 days ago · 71 km deep · 52 km away
  50. 2.8Rat Islands, Aleutian Islands, Alaska · 2188 days ago · 27 km deep · 65 km away
  51. 1.6268 km W of Adak, Alaska · 2188 days ago · 79 km deep · 61 km away
  52. 2.5Rat Islands, Aleutian Islands, Alaska · 2187 days ago · 35 km deep · 79 km away
  53. 2.3177 km WSW of Adak, Alaska · 2186 days ago · 63 km deep · 70 km away
  54. 2.0285 km WSW of Adak, Alaska · 2185 days ago · 19 km deep · 39 km away
  55. 3.8152 km WSW of Adak, Alaska · 2184 days ago · 10 km deep · 98 km away
  56. 2.2190 km WSW of Adak, Alaska · 2184 days ago · 26 km deep · 64 km away
  57. 3.3274 km SW of Adak, Alaska · 2182 days ago · 10 km deep · 91 km away
  58. 2.1178 km WSW of Adak, Alaska · 2182 days ago · 70 km deep · 71 km away
  59. 2.7237 km WSW of Adak, Alaska · 2181 days ago · 14 km deep · 24 km away
  60. 2.0183 km WSW of Adak, Alaska · 2180 days ago · 23 km deep · 72 km away

The first 60 of 100.

Before

  1. 1.8206 km W of Adak, Alaska · 2205 days ago · 85 km deep · 55 km away
  2. 2.0Rat Islands, Aleutian Islands, Alaska · 2207 days ago · 59 km deep · 71 km away
  3. 2.9259 km W of Adak, Alaska · 2207 days ago · 189 km deep · 83 km away
  4. 1.7269 km W of Adak, Alaska · 2208 days ago · 64 km deep · 42 km away
  5. 3.0260 km W of Adak, Alaska · 2208 days ago · 123 km deep · 65 km away
  6. 2.5268 km W of Adak, Alaska · 2209 days ago · 110 km deep · 74 km away
  7. 3.3154 km WSW of Adak, Alaska · 2211 days ago · 10 km deep · 99 km away
  8. 1.7265 km W of Adak, Alaska · 2212 days ago · 10 km deep · 80 km away
  9. 2.3191 km WSW of Adak, Alaska · 2212 days ago · 20 km deep · 57 km away
  10. 2.1239 km WSW of Adak, Alaska · 2212 days ago · 8 km deep · 31 km away
  11. 2.2216 km W of Adak, Alaska · 2212 days ago · 99 km deep · 69 km away
  12. 1.9189 km WSW of Adak, Alaska · 2213 days ago · 31 km deep · 57 km away
  13. 1.7166 km WSW of Adak, Alaska · 2213 days ago · 20 km deep · 87 km away
  14. 3.0259 km W of Adak, Alaska · 2213 days ago · 146 km deep · 80 km away
  15. 2.0251 km WSW of Adak, Alaska · 2214 days ago · 58 km deep · 25 km away
  16. 2.1Rat Islands, Aleutian Islands, Alaska · 2214 days ago · 66 km deep · 93 km away
  17. 1.8244 km WSW of Adak, Alaska · 2215 days ago · 16 km deep · 25 km away
  18. 2.6277 km WSW of Adak, Alaska · 2215 days ago · 31 km deep · 31 km away
  19. 2.2206 km W of Adak, Alaska · 2215 days ago · 162 km deep · 99 km away
  20. 1.7239 km WSW of Adak, Alaska · 2215 days ago · 18 km deep · 12 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak020c2z7m2n. Read Fri, Oct 2, 2026, 10:16 AM UTC.