Tonga earthquakes

M4.4 earthquake 276 km W of Haveluloto, Tonga

A magnitude 4.4 earthquake struck 276 km W of Haveluloto, Tonga on Thu, Mar 18, 2021, 7:04 AM GMT+13 (18:04 UTC), 423 km (263 mi) below the surface.

A larger quake followed: M6.5 207 km WSW 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
4.4 (mb), light
Local time
UTC
2021-03-17 18:04:58 UTC
Depth
422.8 km (262.7 mi), deep
Epicenter
21.439° S, 177.859° 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 14.3 km horizontally, 11.6 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
122°
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 16 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 4.4276 km WSW of Haveluloto, Tonga · 2020 days ago · 316 km deep · 93 km away
  2. 4.1280 km W of Haveluloto, Tonga · 2017 days ago · 487 km deep · 40 km away
  3. 4.4Fiji region · 2015 days ago · 398 km deep · 68 km away
  4. 4.3265 km W of Haveluloto, Tonga · 1997 days ago · 505 km deep · 80 km away
  5. 4.6265 km W of Haveluloto, Tonga · 1997 days ago · 436 km deep · 32 km away
  6. 4.2Fiji region · 1996 days ago · 561 km deep · 98 km away
  7. 4.9201 km W of Haveluloto, Tonga · 1987 days ago · 292 km deep · 87 km away
  8. 6.5207 km WSW of Haveluloto, Tonga · 1983 days ago · 246 km deep · 76 km away · felt by 2
  9. 4.2Fiji region · 1982 days ago · 548 km deep · 80 km away
  10. 4.3Fiji region · 1981 days ago · 490 km deep · 53 km away
  11. 4.2290 km WNW of Haveluloto, Tonga · 1979 days ago · 534 km deep · 96 km away
  12. 4.4269 km WNW of Haveluloto, Tonga · 1976 days ago · 484 km deep · 95 km away
  13. 4.8238 km WSW of Haveluloto, Tonga · 1975 days ago · 352 km deep · 72 km away
  14. 4.3285 km W of Haveluloto, Tonga · 1973 days ago · 496 km deep · 82 km away
  15. 4.1Fiji region · 1966 days ago · 584 km deep · 98 km away
  16. 4.2Fiji region · 1964 days ago · 629 km deep · 97 km away

Before

  1. 4.4Fiji region · 2022 days ago · 555 km deep · 93 km away
  2. 4.6298 km W of Haveluloto, Tonga · 2032 days ago · 476 km deep · 25 km away
  3. 4.3Fiji region · 2035 days ago · 588 km deep · 97 km away
  4. 4.4291 km WNW of Haveluloto, Tonga · 2036 days ago · 547 km deep · 94 km away
  5. 5.4Fiji region · 2036 days ago · 548 km deep · 98 km away
  6. 4.4Fiji region · 2046 days ago · 582 km deep · 94 km away
  7. 4.2Fiji region · 2047 days ago · 585 km deep · 93 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000dwej. Read Tue, Sep 29, 2026, 1:28 PM UTC.