Alaska earthquakes

M2.8 earthquake 298 km W of Adak, Alaska

A magnitude 2.8 earthquake struck 298 km W of Adak, Alaska on Wed, Nov 20, 2019, 7:34 PM GMT+12 (07:34 UTC), 75 km (47 mi) below the surface.

A larger quake followed: M4.9 Rat Islands, Aleutian Islands, 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
2.8 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2019-11-20 07:34:11 UTC
Depth
75.3 km (46.8 mi), intermediate-depth
Epicenter
51.637° N, 179.066° E
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
2.8ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.148 · 6 stations
2.7ML, local (Richter)Alaska Earthquake CenterPreliminary

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 4.2 km horizontally, 6.7 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
162°
Stations used
20

Nearby

Within 100 km, magnitude 1.5 and up: 39 in the 60 days after this one and 43 in the 30 days before it.

After

  1. 4.2Rat Islands, Aleutian Islands, Alaska · 2507 days ago · 23 km deep · 36 km away
  2. 2.0Andreanof Islands, Aleutian Islands, Alaska · 2505 days ago · 13 km deep · 82 km away
  3. 2.7227 km W of Adak, Alaska · 2502 days ago · 109 km deep · 70 km away
  4. 2.8265 km WSW of Adak, Alaska · 2500 days ago · 61 km deep · 44 km away
  5. 2.6272 km WSW of Adak, Alaska · 2500 days ago · 50 km deep · 47 km away
  6. 2.2256 km W of Adak, Alaska · 2499 days ago · 82 km deep · 43 km away
  7. 2.7226 km W of Adak, Alaska · 2499 days ago · 105 km deep · 72 km away
  8. 3.8262 km W of Adak, Alaska · 2498 days ago · 191 km deep · 55 km away
  9. 1.9Rat Islands, Aleutian Islands, Alaska · 2496 days ago · 95 km deep · 43 km away
  10. 2.1207 km W of Adak, Alaska · 2491 days ago · 13 km deep · 91 km away
  11. 2.7Rat Islands, Aleutian Islands, Alaska · 2490 days ago · 126 km deep · 62 km away
  12. 2.4Rat Islands, Aleutian Islands, Alaska · 2488 days ago · 81 km deep · 19 km away
  13. 4.5Rat Islands, Aleutian Islands, Alaska · 2487 days ago · 61 km deep · 25 km away
  14. 2.3Rat Islands, Aleutian Islands, Alaska · 2487 days ago · 5 km deep · 46 km away
  15. 2.1Rat Islands, Aleutian Islands, Alaska · 2485 days ago · 12 km deep · 41 km away
  16. 4.1Rat Islands, Aleutian Islands, Alaska · 2484 days ago · 43 km deep · 48 km away
  17. 3.0Rat Islands, Aleutian Islands, Alaska · 2483 days ago · 101 km deep · 43 km away
  18. 2.1Rat Islands, Aleutian Islands, Alaska · 2482 days ago · 43 km deep · 29 km away
  19. 3.0Rat Islands, Aleutian Islands, Alaska · 2477 days ago · 69 km deep · 84 km away
  20. 2.3Rat Islands, Aleutian Islands, Alaska · 2477 days ago · 42 km deep · 27 km away
  21. 3.5222 km W of Adak, Alaska · 2475 days ago · 107 km deep · 75 km away
  22. 2.8Rat Islands, Aleutian Islands, Alaska · 2472 days ago · 129 km deep · 58 km away
  23. 4.0216 km W of Adak, Alaska · 2469 days ago · 98 km deep · 82 km away
  24. 3.0Rat Islands, Aleutian Islands, Alaska · 2469 days ago · 35 km deep · 27 km away
  25. 4.1Rat Islands, Aleutian Islands, Alaska · 2467 days ago · 140 km deep · 72 km away
  26. 2.1240 km WSW of Adak, Alaska · 2465 days ago · 67 km deep · 62 km away
  27. 2.0204 km W of Adak, Alaska · 2463 days ago · 71 km deep · 96 km away
  28. 2.2253 km W of Adak, Alaska · 2461 days ago · 83 km deep · 45 km away
  29. 2.8Rat Islands, Aleutian Islands, Alaska · 2461 days ago · 136 km deep · 61 km away
  30. 2.1237 km W of Adak, Alaska · 2461 days ago · 166 km deep · 64 km away
  31. 2.4271 km W of Adak, Alaska · 2460 days ago · 73 km deep · 26 km away
  32. 3.5245 km WSW of Adak, Alaska · 2457 days ago · 75 km deep · 61 km away
  33. 4.9Rat Islands, Aleutian Islands, Alaska · 2454 days ago · 139 km deep · 80 km away
  34. 1.6Rat Islands, Aleutian Islands, Alaska · 2454 days ago · 22 km deep · 57 km away
  35. 2.0Rat Islands, Aleutian Islands, Alaska · 2451 days ago · 4 km deep · 56 km away
  36. 1.7Rat Islands, Aleutian Islands, Alaska · 2451 days ago · -3 km deep · 70 km away
  37. 3.9Rat Islands, Aleutian Islands, Alaska · 2451 days ago · 10 km deep · 62 km away
  38. 1.9Rat Islands, Aleutian Islands, Alaska · 2451 days ago · 3 km deep · 62 km away
  39. 1.5Rat Islands, Aleutian Islands, Alaska · 2451 days ago · 7 km deep · 66 km away

Before

  1. 2.5Rat Islands, Aleutian Islands, Alaska · 2508 days ago · 49 km deep · 34 km away
  2. 2.9266 km WSW of Adak, Alaska · 2508 days ago · 35 km deep · 63 km away
  3. 2.6219 km WSW of Adak, Alaska · 2509 days ago · 18 km deep · 87 km away
  4. 2.0226 km W of Adak, Alaska · 2512 days ago · 69 km deep · 74 km away
  5. 2.1268 km W of Adak, Alaska · 2512 days ago · 67 km deep · 33 km away
  6. 1.9Rat Islands, Aleutian Islands, Alaska · 2512 days ago · 13 km deep · 60 km away
  7. 2.9Rat Islands, Aleutian Islands, Alaska · 2514 days ago · 60 km deep · 74 km away
  8. 1.9270 km W of Adak, Alaska · 2514 days ago · 63 km deep · 35 km away
  9. 2.1Rat Islands, Aleutian Islands, Alaska · 2514 days ago · 39 km deep · 66 km away
  10. 1.8261 km W of Adak, Alaska · 2514 days ago · 17 km deep · 43 km away
  11. 2.1248 km WSW of Adak, Alaska · 2515 days ago · 12 km deep · 93 km away
  12. 2.0Andreanof Islands, Aleutian Islands, Alaska · 2515 days ago · 3 km deep · 89 km away
  13. 1.9Rat Islands, Aleutian Islands, Alaska · 2516 days ago · 90 km deep · 42 km away
  14. 2.9293 km W of Adak, Alaska · 2516 days ago · 31 km deep · 21 km away
  15. 2.1226 km W of Adak, Alaska · 2516 days ago · 129 km deep · 77 km away
  16. 2.1254 km WSW of Adak, Alaska · 2517 days ago · 14 km deep · 87 km away
  17. 2.1266 km WSW of Adak, Alaska · 2519 days ago · 62 km deep · 41 km away
  18. 3.4Rat Islands, Aleutian Islands, Alaska · 2519 days ago · 35 km deep · 63 km away
  19. 3.3Rat Islands, Aleutian Islands, Alaska · 2519 days ago · 73 km deep · 57 km away
  20. 1.6290 km WSW of Adak, Alaska · 2520 days ago · 43 km deep · 27 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70006ff1 (also filed as ak019evyhswv). Read Thu, Oct 1, 2026, 8:10 PM UTC.