Tonga earthquakes

M4.3 earthquake 268 km WNW of Haveluloto, Tonga

A magnitude 4.3 earthquake struck 268 km WNW of Haveluloto, Tonga on Wed, Jul 21, 2021, 10:24 PM GMT+13 (09:24 UTC), 539 km (335 mi) below the surface.

A larger quake followed: M4.8 Fiji region. 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
4.3 (mb), light
Local time
UTC
2021-07-21 09:24:26 UTC
Depth
539.2 km (335.1 mi), deep
Epicenter
20.216° S, 177.592° 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 9.0 km horizontally, 7.6 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
138°
Stations used
40

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 4.0Fiji region · 1896 days ago · 564 km deep · 55 km away
  2. 4.4238 km WNW of Haveluloto, Tonga · 1889 days ago · 478 km deep · 32 km away
  3. 4.2277 km WNW of Haveluloto, Tonga · 1884 days ago · 534 km deep · 14 km away
  4. 4.8Fiji region · 1883 days ago · 530 km deep · 69 km away
  5. 4.2Fiji region · 1881 days ago · 550 km deep · 87 km away
  6. 4.2276 km WNW of Haveluloto, Tonga · 1871 days ago · 594 km deep · 8 km away
  7. 4.2246 km W of Haveluloto, Tonga · 1870 days ago · 518 km deep · 99 km away
  8. 4.0276 km WNW of Haveluloto, Tonga · 1865 days ago · 540 km deep · 24 km away
  9. 4.2257 km WNW of Haveluloto, Tonga · 1861 days ago · 401 km deep · 11 km away
  10. 4.4Fiji region · 1859 days ago · 550 km deep · 86 km away
  11. 4.1Fiji region · 1855 days ago · 550 km deep · 46 km away
  12. 4.2279 km NW of Haveluloto, Tonga · 1851 days ago · 563 km deep · 72 km away
  13. 4.1264 km WNW of Haveluloto, Tonga · 1848 days ago · 563 km deep · 29 km away
  14. 4.1Fiji region · 1847 days ago · 558 km deep · 58 km away
  15. 4.1205 km WNW of Haveluloto, Tonga · 1846 days ago · 314 km deep · 77 km away
  16. 4.2Fiji region · 1841 days ago · 595 km deep · 80 km away
  17. 4.3Fiji region · 1840 days ago · 601 km deep · 88 km away
  18. 4.2257 km WNW of Haveluloto, Tonga · 1837 days ago · 500 km deep · 27 km away

Before

  1. 4.2Fiji region · 1897 days ago · 550 km deep · 83 km away
  2. 4.3Fiji region · 1897 days ago · 566 km deep · 67 km away
  3. 4.2Fiji region · 1898 days ago · 535 km deep · 59 km away
  4. 5.5Fiji region · 1901 days ago · 563 km deep · 95 km away
  5. 4.1285 km WNW of Haveluloto, Tonga · 1904 days ago · 491 km deep · 48 km away
  6. 4.3Fiji region · 1906 days ago · 570 km deep · 94 km away
  7. 4.4Fiji region · 1906 days ago · 439 km deep · 58 km away
  8. 4.1Fiji region · 1906 days ago · 612 km deep · 74 km away
  9. 4.5283 km WNW of Haveluloto, Tonga · 1909 days ago · 458 km deep · 50 km away
  10. 4.1Fiji region · 1912 days ago · 446 km deep · 77 km away
  11. 4.1Fiji region · 1912 days ago · 570 km deep · 49 km away
  12. 4.2Fiji region · 1915 days ago · 566 km deep · 87 km away
  13. 4.3Fiji region · 1921 days ago · 529 km deep · 7 km away
  14. 4.3267 km WNW of Haveluloto, Tonga · 1923 days ago · 517 km deep · 19 km away
  15. 4.4281 km WNW of Haveluloto, Tonga · 1923 days ago · 494 km deep · 42 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000exkk. Read Wed, Sep 30, 2026, 1:51 AM UTC.