Tonga earthquakes

M4.7 earthquake 68 km N of Nuku‘alofa, Tonga

A magnitude 4.7 earthquake struck 68 km N of Nuku‘alofa, Tonga on Sun, Dec 19, 2021, 5:49 AM GMT+13 (16:49 UTC), 78 km (48 mi) below the surface.

A larger quake followed: M5.0 29 km NNW of Nuku‘alofa, Tonga. This one was a foreshock.

Nuku‘alofa forecastMore in Tonga

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.7 (mb), light
Local time
UTC
2021-12-18 16:49:46 UTC
Depth
77.9 km (48.4 mi), intermediate-depth
Epicenter
20.523° S, 175.238° W
Region
Tonga
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.

Location uncertainty
About 7.7 km horizontally, 6.2 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
70°
Stations used
55

Nearest places

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

Nearby

Within 100 km, magnitude 1.7 and up: 108 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 4.2141 km NNW of Nuku‘alofa, Tonga · 1731 days ago · 235 km deep · 80 km away
  2. 4.781 km NNW of Nuku‘alofa, Tonga · 1719 days ago · 10 km deep · 27 km away
  3. 4.745 km NW of Nuku‘alofa, Tonga · 1718 days ago · 10 km deep · 39 km away
  4. 4.756 km NW of Nuku‘alofa, Tonga · 1718 days ago · 10 km deep · 45 km away
  5. 4.852 km NNW of Nuku‘alofa, Tonga · 1718 days ago · 10 km deep · 32 km away
  6. 4.755 km NW of Nuku‘alofa, Tonga · 1718 days ago · 10 km deep · 39 km away
  7. 4.441 km NNW of Nuku‘alofa, Tonga · 1718 days ago · 10 km deep · 32 km away
  8. 4.650 km N of Nuku‘alofa, Tonga · 1718 days ago · 10 km deep · 19 km away
  9. 4.956 km NNW of Nuku‘alofa, Tonga · 1718 days ago · 10 km deep · 28 km away
  10. 4.751 km NW of Nuku‘alofa, Tonga · 1717 days ago · 10 km deep · 37 km away
  11. 4.839 km NW of Nuku‘alofa, Tonga · 1717 days ago · 10 km deep · 46 km away
  12. 4.564 km NNW of Nuku‘alofa, Tonga · 1717 days ago · 10 km deep · 24 km away
  13. 4.763 km NNW of Nuku‘alofa, Tonga · 1717 days ago · 10 km deep · 21 km away
  14. 4.574 km NNW of Nuku‘alofa, Tonga · 1717 days ago · 10 km deep · 37 km away
  15. 4.559 km NNW of Nuku‘alofa, Tonga · 1717 days ago · 10 km deep · 28 km away
  16. 4.768 km NNW of Nuku‘alofa, Tonga · 1717 days ago · 10 km deep · 32 km away
  17. 4.5Tonga · 1717 days ago · 10 km deep · 51 km away
  18. 4.5Tonga · 1717 days ago · 10 km deep · 36 km away
  19. 4.555 km NW of Nuku‘alofa, Tonga · 1717 days ago · 10 km deep · 39 km away
  20. 4.580 km NW of Nuku‘alofa, Tonga · 1716 days ago · 10 km deep · 45 km away
  21. 4.668 km NNW of Nuku‘alofa, Tonga · 1716 days ago · 10 km deep · 30 km away
  22. 4.441 km NW of Nuku‘alofa, Tonga · 1716 days ago · 10 km deep · 45 km away
  23. 4.532 km NNW of Nuku‘alofa, Tonga · 1716 days ago · 10 km deep · 41 km away
  24. 4.557 km NNW of Nuku‘alofa, Tonga · 1716 days ago · 10 km deep · 31 km away
  25. 4.449 km NNW of Nuku‘alofa, Tonga · 1716 days ago · 10 km deep · 26 km away
  26. 4.744 km NNW of Nuku‘alofa, Tonga · 1716 days ago · 10 km deep · 34 km away
  27. 4.637 km NNW of Nuku‘alofa, Tonga · 1716 days ago · 10 km deep · 35 km away
  28. 4.575 km NNW of Nuku‘alofa, Tonga · 1716 days ago · 10 km deep · 35 km away
  29. 4.645 km NW of Nuku‘alofa, Tonga · 1716 days ago · 10 km deep · 46 km away
  30. 4.641 km NW of Nuku‘alofa, Tonga · 1715 days ago · 10 km deep · 40 km away
  31. 4.479 km NNW of Nuku‘alofa, Tonga · 1715 days ago · 10 km deep · 37 km away
  32. 4.452 km NNW of Nuku‘alofa, Tonga · 1715 days ago · 10 km deep · 21 km away
  33. 4.681 km NNW of Nuku‘alofa, Tonga · 1715 days ago · 10 km deep · 22 km away
  34. 4.563 km N of Nuku‘alofa, Tonga · 1715 days ago · 10 km deep · 5 km away
  35. 4.752 km NW of Nuku‘alofa, Tonga · 1715 days ago · 10 km deep · 36 km away
  36. 4.673 km N of Nuku‘alofa, Tonga · 1715 days ago · 10 km deep · 7 km away
  37. 4.857 km NW of Nuku‘alofa, Tonga · 1715 days ago · 10 km deep · 36 km away
  38. 4.671 km NW of Nuku‘alofa, Tonga · 1715 days ago · 10 km deep · 40 km away
  39. 4.567 km NW of Nuku‘alofa, Tonga · 1715 days ago · 10 km deep · 45 km away
  40. 4.844 km NW of Nuku‘alofa, Tonga · 1715 days ago · 10 km deep · 40 km away
  41. 4.652 km NNW of Nuku‘alofa, Tonga · 1715 days ago · 10 km deep · 20 km away
  42. 4.691 km NW of Nuku‘alofa, Tonga · 1715 days ago · 10 km deep · 57 km away
  43. 4.658 km NNW of Nuku‘alofa, Tonga · 1715 days ago · 10 km deep · 27 km away
  44. 4.967 km NW of Nuku‘alofa, Tonga · 1715 days ago · 10 km deep · 39 km away
  45. 4.571 km NNW of Nuku‘alofa, Tonga · 1715 days ago · 10 km deep · 34 km away
  46. 4.751 km NNW of Nuku‘alofa, Tonga · 1715 days ago · 10 km deep · 24 km away
  47. 4.626 km NW of Nuku‘alofa, Tonga · 1715 days ago · 10 km deep · 54 km away
  48. 4.939 km NNW of Nuku‘alofa, Tonga · 1714 days ago · 10 km deep · 34 km away
  49. 4.865 km NNW of Nuku‘alofa, Tonga · 1714 days ago · 10 km deep · 20 km away
  50. 4.848 km NNW of Nuku‘alofa, Tonga · 1714 days ago · 10 km deep · 23 km away
  51. 4.665 km NNW of Nuku‘alofa, Tonga · 1714 days ago · 10 km deep · 25 km away
  52. 4.678 km N of Nuku‘alofa, Tonga · 1714 days ago · 10 km deep · 12 km away
  53. 4.677 km NNW of Nuku‘alofa, Tonga · 1714 days ago · 10 km deep · 33 km away
  54. 4.862 km N of Nuku‘alofa, Tonga · 1714 days ago · 10 km deep · 11 km away
  55. 4.676 km NNW of Nuku‘alofa, Tonga · 1714 days ago · 10 km deep · 22 km away
  56. 4.665 km NNW of Nuku‘alofa, Tonga · 1714 days ago · 10 km deep · 12 km away
  57. 4.863 km NNW of Nuku‘alofa, Tonga · 1714 days ago · 10 km deep · 16 km away
  58. 4.755 km NNW of Nuku‘alofa, Tonga · 1714 days ago · 10 km deep · 34 km away
  59. 4.667 km NNW of Nuku‘alofa, Tonga · 1714 days ago · 10 km deep · 23 km away
  60. 4.969 km NNW of Nuku‘alofa, Tonga · 1713 days ago · 10 km deep · 34 km away

The first 60 of 108.

Before

  1. 4.575 km WSW of Pangai, Tonga · 1757 days ago · 106 km deep · 51 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000gdf2. Read Tue, Sep 29, 2026, 9:40 AM UTC.