Tonga earthquakes

M4.1 earthquake 285 km WNW of Haveluloto, Tonga

A magnitude 4.1 earthquake struck 285 km WNW of Haveluloto, Tonga on Thu, Jul 15, 2021, 3:20 AM GMT+13 (14:20 UTC), 491 km (305 mi) below the surface.

A larger quake followed: M5.5 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
4.1 (mb), light
Local time
UTC
2021-07-14 14:20:20 UTC
Depth
491.4 km (305.3 mi), deep
Epicenter
20.551° S, 177.885° 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, 11.4 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
138°
Stations used
20

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 25 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 4.1Fiji region · 1903 days ago · 605 km deep · 62 km away
  2. 5.5Fiji region · 1901 days ago · 563 km deep · 55 km away
  3. 4.3Fiji region · 1899 days ago · 549 km deep · 77 km away
  4. 4.2Fiji region · 1899 days ago · 535 km deep · 40 km away
  5. 4.2Fiji region · 1897 days ago · 550 km deep · 47 km away
  6. 4.3268 km WNW of Haveluloto, Tonga · 1897 days ago · 539 km deep · 48 km away
  7. 4.0Fiji region · 1897 days ago · 564 km deep · 86 km away
  8. 4.4238 km WNW of Haveluloto, Tonga · 1889 days ago · 478 km deep · 56 km away
  9. 4.2277 km WNW of Haveluloto, Tonga · 1884 days ago · 534 km deep · 58 km away
  10. 4.8Fiji region · 1883 days ago · 530 km deep · 37 km away
  11. 4.2Fiji region · 1881 days ago · 550 km deep · 40 km away
  12. 4.2Fiji region · 1878 days ago · 602 km deep · 70 km away
  13. 4.2276 km WNW of Haveluloto, Tonga · 1871 days ago · 594 km deep · 46 km away
  14. 4.2246 km W of Haveluloto, Tonga · 1871 days ago · 518 km deep · 70 km away
  15. 4.6Fiji region · 1870 days ago · 577 km deep · 93 km away
  16. 4.1296 km W of Haveluloto, Tonga · 1868 days ago · 470 km deep · 69 km away
  17. 4.0276 km WNW of Haveluloto, Tonga · 1865 days ago · 540 km deep · 25 km away
  18. 4.2257 km WNW of Haveluloto, Tonga · 1861 days ago · 401 km deep · 53 km away
  19. 4.4Fiji region · 1860 days ago · 550 km deep · 41 km away
  20. 4.1Fiji region · 1855 days ago · 550 km deep · 56 km away
  21. 4.2Fiji region · 1851 days ago · 598 km deep · 99 km away
  22. 4.1264 km WNW of Haveluloto, Tonga · 1848 days ago · 563 km deep · 78 km away
  23. 4.1Fiji region · 1847 days ago · 558 km deep · 70 km away
  24. 4.3Fiji region · 1847 days ago · 577 km deep · 58 km away
  25. 4.1205 km WNW of Haveluloto, Tonga · 1846 days ago · 314 km deep · 81 km away

Before

  1. 4.4Fiji region · 1906 days ago · 439 km deep · 93 km away
  2. 4.1Fiji region · 1907 days ago · 612 km deep · 78 km away
  3. 4.5283 km WNW of Haveluloto, Tonga · 1909 days ago · 458 km deep · 4 km away
  4. 4.1Fiji region · 1913 days ago · 570 km deep · 48 km away
  5. 4.2Fiji region · 1915 days ago · 566 km deep · 48 km away
  6. 4.3Fiji region · 1922 days ago · 529 km deep · 41 km away
  7. 4.3267 km WNW of Haveluloto, Tonga · 1923 days ago · 517 km deep · 31 km away
  8. 4.4281 km WNW of Haveluloto, Tonga · 1923 days ago · 494 km deep · 6 km away
  9. 4.4Fiji region · 1928 days ago · 595 km deep · 78 km away
  10. 4.3283 km WNW of Haveluloto, Tonga · 1929 days ago · 505 km deep · 13 km away
  11. 4.4Fiji region · 1930 days ago · 542 km deep · 24 km away
  12. 4.0Fiji region · 1931 days ago · 578 km deep · 60 km away
  13. 4.4Fiji region · 1931 days ago · 552 km deep · 29 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000engf. Read Wed, Sep 30, 2026, 10:26 AM UTC.