Tonga earthquakes

M4.2 earthquake 253 km WNW of Haveluloto, Tonga

A magnitude 4.2 earthquake struck 253 km WNW of Haveluloto, Tonga on Sat, Oct 30, 2021, 7:59 PM GMT+13 (06:59 UTC), 505 km (314 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
4.2 (mb), light
Local time
UTC
2021-10-30 06:59:30 UTC
Depth
504.6 km (313.5 mi), deep
Epicenter
20.462° S, 177.538° 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 15.6 km horizontally, 10.5 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
139°
Stations used
24

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 6 in the 30 days before it.

After

  1. 5.5Fiji region · 1795 days ago · 381 km deep · 94 km away
  2. 4.1280 km WNW of Haveluloto, Tonga · 1788 days ago · 558 km deep · 72 km away
  3. 4.2Fiji region · 1783 days ago · 425 km deep · 67 km away
  4. 4.1285 km WNW of Haveluloto, Tonga · 1782 days ago · 532 km deep · 34 km away
  5. 4.9269 km WNW of Haveluloto, Tonga · 1781 days ago · 505 km deep · 25 km away
  6. 4.6230 km WNW of Haveluloto, Tonga · 1777 days ago · 10 km deep · 60 km away
  7. 4.4Fiji region · 1775 days ago · 480 km deep · 84 km away
  8. 4.1Fiji region · 1774 days ago · 563 km deep · 95 km away
  9. 4.4278 km W of Haveluloto, Tonga · 1770 days ago · 475 km deep · 72 km away
  10. 4.3Fiji region · 1769 days ago · 542 km deep · 99 km away
  11. 4.1259 km WNW of Haveluloto, Tonga · 1767 days ago · 505 km deep · 28 km away
  12. 4.1Fiji region · 1766 days ago · 570 km deep · 75 km away
  13. 4.1293 km WNW of Haveluloto, Tonga · 1764 days ago · 570 km deep · 63 km away
  14. 4.1Fiji region · 1751 days ago · 354 km deep · 98 km away
  15. 4.5286 km W of Haveluloto, Tonga · 1750 days ago · 522 km deep · 46 km away
  16. 4.4239 km WNW of Haveluloto, Tonga · 1747 days ago · 486 km deep · 16 km away
  17. 4.0288 km W of Haveluloto, Tonga · 1746 days ago · 505 km deep · 52 km away
  18. 4.9298 km WNW of Haveluloto, Tonga · 1739 days ago · 434 km deep · 72 km away

Before

  1. 4.0276 km WNW of Haveluloto, Tonga · 1796 days ago · 554 km deep · 58 km away
  2. 4.0277 km WNW of Haveluloto, Tonga · 1804 days ago · 533 km deep · 39 km away
  3. 4.2Fiji region · 1806 days ago · 437 km deep · 97 km away
  4. 4.3265 km WNW of Haveluloto, Tonga · 1806 days ago · 511 km deep · 23 km away
  5. 4.5Fiji region · 1809 days ago · 395 km deep · 72 km away
  6. 4.3280 km WNW of Haveluloto, Tonga · 1815 days ago · 372 km deep · 59 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000fret. Read Mon, Sep 28, 2026, 9:59 PM UTC.