Tonga earthquakes

M4.0 earthquake 288 km W of Haveluloto, Tonga

A magnitude 4.0 earthquake struck 288 km W of Haveluloto, Tonga on Sat, Dec 18, 2021, 11:18 PM GMT+13 (10:18 UTC), 505 km (314 mi) below the surface.

A larger quake followed: M4.7 298 km W of Haveluloto, 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
4.0 (mb), light
Local time
UTC
2021-12-18 10:18:58 UTC
Depth
505.1 km (313.8 mi), deep
Epicenter
20.719° S, 177.950° 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 13.6 km horizontally, 13.4 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
233°, poorly surrounded by stations
Stations used
25

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 4.1241 km WNW of Haveluloto, Tonga · 1731 days ago · 505 km deep · 94 km away
  2. 4.2Fiji region · 1728 days ago · 554 km deep · 65 km away
  3. 4.3233 km WNW of Haveluloto, Tonga · 1728 days ago · 553 km deep · 70 km away
  4. 4.2Fiji region · 1724 days ago · 573 km deep · 90 km away
  5. 4.5Fiji region · 1723 days ago · 570 km deep · 95 km away
  6. 4.4293 km W of Haveluloto, Tonga · 1721 days ago · 556 km deep · 8 km away
  7. 4.3Fiji region · 1715 days ago · 530 km deep · 42 km away
  8. 4.3Fiji region · 1715 days ago · 552 km deep · 70 km away
  9. 4.2Fiji region · 1712 days ago · 550 km deep · 42 km away
  10. 4.7298 km W of Haveluloto, Tonga · 1711 days ago · 525 km deep · 25 km away
  11. 4.2Fiji region · 1709 days ago · 458 km deep · 49 km away
  12. 4.4263 km W of Haveluloto, Tonga · 1697 days ago · 400 km deep · 65 km away
  13. 4.5Fiji region · 1697 days ago · 544 km deep · 56 km away
  14. 4.3271 km WNW of Haveluloto, Tonga · 1696 days ago · 518 km deep · 30 km away
  15. 4.5247 km WNW of Haveluloto, Tonga · 1695 days ago · 510 km deep · 47 km away
  16. 4.0Fiji region · 1692 days ago · 569 km deep · 97 km away
  17. 4.3251 km WNW of Haveluloto, Tonga · 1690 days ago · 487 km deep · 60 km away
  18. 4.4Fiji region · 1690 days ago · 535 km deep · 68 km away
  19. 4.0Fiji region · 1688 days ago · 543 km deep · 42 km away

Before

  1. 4.4239 km WNW of Haveluloto, Tonga · 1747 days ago · 486 km deep · 65 km away
  2. 4.5286 km W of Haveluloto, Tonga · 1750 days ago · 522 km deep · 5 km away
  3. 4.5Fiji region · 1756 days ago · 558 km deep · 53 km away
  4. 4.3Fiji region · 1763 days ago · 613 km deep · 98 km away
  5. 4.1293 km WNW of Haveluloto, Tonga · 1764 days ago · 570 km deep · 93 km away
  6. 4.1Fiji region · 1766 days ago · 570 km deep · 45 km away
  7. 4.1259 km WNW of Haveluloto, Tonga · 1767 days ago · 505 km deep · 74 km away
  8. 4.3Fiji region · 1769 days ago · 542 km deep · 50 km away
  9. 4.4278 km W of Haveluloto, Tonga · 1770 days ago · 475 km deep · 34 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000gejv. Read Mon, Sep 28, 2026, 10:00 PM UTC.