Tonga earthquakes

M4.1 earthquake 205 km WNW of Haveluloto, Tonga

A magnitude 4.1 earthquake struck 205 km WNW of Haveluloto, Tonga on Fri, Sep 10, 2021, 5:10 PM GMT+13 (04:10 UTC), 314 km (195 mi) below the surface.

A larger quake followed: M4.4 258 km WNW 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
4.1 (mb), light
Local time
UTC
2021-09-10 04:10:20 UTC
Depth
313.8 km (195.0 mi), deep
Epicenter
20.765° S, 177.143° 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 12.7 km horizontally, 8.3 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
123°
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: 10 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 4.2257 km WNW of Haveluloto, Tonga · 1836 days ago · 500 km deep · 83 km away
  2. 4.4258 km WNW of Haveluloto, Tonga · 1831 days ago · 527 km deep · 55 km away
  3. 4.2260 km WNW of Haveluloto, Tonga · 1830 days ago · 510 km deep · 66 km away
  4. 4.3277 km WNW of Haveluloto, Tonga · 1827 days ago · 565 km deep · 89 km away
  5. 4.2150 km WNW of Haveluloto, Tonga · 1819 days ago · 303 km deep · 62 km away
  6. 4.3265 km WNW of Haveluloto, Tonga · 1806 days ago · 511 km deep · 61 km away
  7. 4.0277 km WNW of Haveluloto, Tonga · 1804 days ago · 533 km deep · 88 km away
  8. 4.0276 km WNW of Haveluloto, Tonga · 1795 days ago · 554 km deep · 100 km away
  9. 4.2150 km WSW of Haveluloto, Tonga · 1795 days ago · 406 km deep · 91 km away
  10. 4.2253 km WNW of Haveluloto, Tonga · 1795 days ago · 505 km deep · 53 km away

Before

  1. 4.1264 km WNW of Haveluloto, Tonga · 1846 days ago · 563 km deep · 91 km away
  2. 4.2257 km WNW of Haveluloto, Tonga · 1859 days ago · 401 km deep · 68 km away
  3. 4.0276 km WNW of Haveluloto, Tonga · 1864 days ago · 540 km deep · 76 km away
  4. 4.2246 km W of Haveluloto, Tonga · 1869 days ago · 518 km deep · 60 km away
  5. 4.2276 km WNW of Haveluloto, Tonga · 1870 days ago · 594 km deep · 84 km away
  6. 4.5223 km W of Haveluloto, Tonga · 1871 days ago · 385 km deep · 66 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000fbtw. Read Mon, Sep 28, 2026, 9:10 PM UTC.