Tonga earthquakes

M4.2 earthquake 231 km WNW of Haveluloto, Tonga

A magnitude 4.2 earthquake struck 231 km WNW of Haveluloto, Tonga on Wed, May 19, 2021, 12:58 AM GMT+13 (11:58 UTC), 514 km (320 mi) below the surface.

A larger quake followed: M4.5 283 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
4.2 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2021-05-18 11:58:25 UTC
Depth
514.3 km (319.6 mi), deep
Epicenter
20.358° S, 177.266° 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 13.9 km horizontally, 16.3 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
221°, poorly surrounded by stations
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: 22 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 4.2238 km W of Haveluloto, Tonga · 1962 days ago · 374 km deep · 82 km away
  2. 4.4Fiji region · 1957 days ago · 553 km deep · 85 km away
  3. 4.3269 km WNW of Haveluloto, Tonga · 1956 days ago · 533 km deep · 51 km away
  4. 4.4276 km WNW of Haveluloto, Tonga · 1956 days ago · 515 km deep · 52 km away
  5. 4.3Fiji region · 1955 days ago · 549 km deep · 96 km away
  6. 4.2Fiji region · 1954 days ago · 404 km deep · 77 km away
  7. 4.4Fiji region · 1954 days ago · 597 km deep · 83 km away
  8. 4.2298 km WNW of Haveluloto, Tonga · 1945 days ago · 347 km deep · 83 km away
  9. 4.1Fiji region · 1944 days ago · 584 km deep · 89 km away
  10. 4.4253 km NW of Haveluloto, Tonga · 1942 days ago · 399 km deep · 58 km away
  11. 4.3Fiji region · 1940 days ago · 530 km deep · 79 km away
  12. 4.1Fiji region · 1938 days ago · 400 km deep · 71 km away
  13. 4.4Fiji region · 1933 days ago · 552 km deep · 74 km away
  14. 4.4Fiji region · 1932 days ago · 542 km deep · 84 km away
  15. 4.3283 km WNW of Haveluloto, Tonga · 1931 days ago · 505 km deep · 60 km away
  16. 4.4281 km WNW of Haveluloto, Tonga · 1925 days ago · 494 km deep · 62 km away
  17. 4.3267 km WNW of Haveluloto, Tonga · 1925 days ago · 517 km deep · 40 km away
  18. 4.3Fiji region · 1924 days ago · 529 km deep · 38 km away
  19. 4.1Fiji region · 1915 days ago · 570 km deep · 86 km away
  20. 4.5283 km WNW of Haveluloto, Tonga · 1911 days ago · 458 km deep · 68 km away
  21. 4.4Fiji region · 1908 days ago · 439 km deep · 89 km away
  22. 4.1285 km WNW of Haveluloto, Tonga · 1906 days ago · 491 km deep · 68 km away

Before

  1. 4.1Fiji region · 1963 days ago · 585 km deep · 98 km away
  2. 4.2247 km NW of Haveluloto, Tonga · 1967 days ago · 341 km deep · 50 km away
  3. 4.3285 km W of Haveluloto, Tonga · 1976 days ago · 496 km deep · 78 km away
  4. 4.4269 km WNW of Haveluloto, Tonga · 1979 days ago · 484 km deep · 55 km away
  5. 4.2290 km WNW of Haveluloto, Tonga · 1982 days ago · 534 km deep · 74 km away
  6. 4.5266 km WNW of Haveluloto, Tonga · 1984 days ago · 518 km deep · 37 km away
  7. 4.4287 km WNW of Haveluloto, Tonga · 1984 days ago · 540 km deep · 65 km away
  8. 5.1270 km WNW of Haveluloto, Tonga · 1987 days ago · 495 km deep · 46 km away
  9. 4.5Fiji region · 1989 days ago · 568 km deep · 87 km away
  10. 4.9201 km W of Haveluloto, Tonga · 1990 days ago · 292 km deep · 76 km away
  11. 4.2285 km WNW of Haveluloto, Tonga · 1991 days ago · 510 km deep · 56 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000e5tt. Read Fri, Oct 2, 2026, 9:51 AM UTC.