Tonga earthquakes

M4.2 earthquake 8 km WNW of Pangai, Tonga

A magnitude 4.2 earthquake struck 8 km WNW of Pangai, Tonga on Sun, May 21, 2006, 10:23 AM GMT+13 (21:23 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M5.7 21 km WSW of Pangai, 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
4.2 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2006-05-20 21:23:28 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
19.781° S, 174.426° W
Region
Tonga
Tsunami flag
No
Status
Reviewed by a seismologist

What happened

The USGS’s account of the effects of this earthquake.

no people dead or missing; no people injured; no buildings damaged or destroyed

From the USGS event page for usp000ehkh. U.S. Geological Survey text and figures are in the public domain.

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Depth from
OPERATOR_ASSIGNED
Station coverage gap
150°
Stations used
17

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 30 in the 60 days after this one and 103 in the 30 days before it.

After

  1. 4.883 km SSE of Pangai, Tonga · 7440 days ago · 17 km deep · 90 km away
  2. 4.957 km SE of Pangai, Tonga · 7435 days ago · 35 km deep · 65 km away
  3. 4.535 km ESE of Pangai, Tonga · 7435 days ago · 35 km deep · 44 km away
  4. 5.721 km WSW of Pangai, Tonga · 7435 days ago · 49 km deep · 18 km away
  5. 4.686 km NNW of Pangai, Tonga · 7433 days ago · 35 km deep · 80 km away
  6. 4.960 km ESE of Pangai, Tonga · 7430 days ago · 45 km deep · 69 km away
  7. 5.168 km ESE of Pangai, Tonga · 7430 days ago · 35 km deep · 77 km away
  8. 5.260 km ESE of Pangai, Tonga · 7430 days ago · 30 km deep · 69 km away
  9. 4.754 km ESE of Pangai, Tonga · 7429 days ago · 38 km deep · 63 km away
  10. 4.266 km NE of Pangai, Tonga · 7429 days ago · 165 km deep · 71 km away
  11. 5.280 km S of Pangai, Tonga · 7428 days ago · 38 km deep · 85 km away
  12. 4.966 km ESE of Pangai, Tonga · 7428 days ago · 51 km deep · 75 km away
  13. 4.663 km S of Pangai, Tonga · 7427 days ago · 27 km deep · 69 km away
  14. 4.7Tonga · 7424 days ago · 15 km deep · 92 km away
  15. 4.686 km SSE of Pangai, Tonga · 7424 days ago · 15 km deep · 93 km away
  16. 4.0Tonga · 7424 days ago · 35 km deep · 65 km away
  17. 4.926 km SSW of Pangai, Tonga · 7415 days ago · 38 km deep · 28 km away
  18. 3.841 km WNW of Pangai, Tonga · 7413 days ago · 42 km deep · 33 km away
  19. 4.019 km WSW of Pangai, Tonga · 7413 days ago · 25 km deep · 16 km away
  20. 4.532 km SSW of Pangai, Tonga · 7413 days ago · 15 km deep · 34 km away
  21. 4.647 km SSW of Pangai, Tonga · 7413 days ago · 50 km deep · 49 km away
  22. 4.939 km SSE of Pangai, Tonga · 7413 days ago · 35 km deep · 47 km away
  23. 4.834 km E of Pangai, Tonga · 7412 days ago · 10 km deep · 43 km away
  24. 4.338 km S of Pangai, Tonga · 7407 days ago · 35 km deep · 44 km away
  25. 4.222 km SSE of Pangai, Tonga · 7405 days ago · 36 km deep · 30 km away
  26. 4.665 km E of Pangai, Tonga · 7397 days ago · 10 km deep · 73 km away
  27. 5.6Tonga · 7397 days ago · 26 km deep · 93 km away
  28. 4.751 km E of Pangai, Tonga · 7388 days ago · 19 km deep · 58 km away
  29. 4.121 km NNW of Pangai, Tonga · 7387 days ago · 35 km deep · 17 km away
  30. 4.933 km W of Pangai, Tonga · 7385 days ago · 25 km deep · 25 km away

Before

  1. 4.957 km S of Pangai, Tonga · 7443 days ago · 15 km deep · 62 km away
  2. 4.814 km SSE of Pangai, Tonga · 7443 days ago · 35 km deep · 23 km away
  3. 4.735 km W of Pangai, Tonga · 7443 days ago · 25 km deep · 28 km away
  4. 4.615 km E of Pangai, Tonga · 7444 days ago · 25 km deep · 23 km away
  5. 4.272 km S of Pangai, Tonga · 7444 days ago · 35 km deep · 78 km away
  6. 4.736 km WNW of Pangai, Tonga · 7444 days ago · 25 km deep · 28 km away
  7. 4.786 km SSE of Pangai, Tonga · 7445 days ago · 24 km deep · 92 km away
  8. 4.585 km SSE of Pangai, Tonga · 7445 days ago · 15 km deep · 92 km away
  9. 4.4Tonga · 7445 days ago · 35 km deep · 48 km away
  10. 3.969 km NW of Pangai, Tonga · 7445 days ago · 35 km deep · 62 km away
  11. 3.6Tonga · 7445 days ago · 35 km deep · 27 km away
  12. 4.626 km SW of Pangai, Tonga · 7445 days ago · 10 km deep · 25 km away
  13. 4.868 km SSE of Pangai, Tonga · 7446 days ago · 21 km deep · 75 km away
  14. 4.434 km W of Pangai, Tonga · 7446 days ago · 35 km deep · 28 km away
  15. 4.326 km WSW of Pangai, Tonga · 7446 days ago · 35 km deep · 21 km away
  16. 4.981 km SSE of Neiafu, Tonga · 7447 days ago · 36 km deep · 86 km away
  17. 5.030 km WSW of Pangai, Tonga · 7447 days ago · 46 km deep · 25 km away
  18. 4.615 km NW of Pangai, Tonga · 7448 days ago · 35 km deep · 8 km away
  19. 5.040 km SW of Pangai, Tonga · 7449 days ago · 50 km deep · 40 km away
  20. 4.738 km S of Pangai, Tonga · 7449 days ago · 10 km deep · 44 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000ehkh. Read Sun, Oct 4, 2026, 8:50 PM UTC.