Tonga earthquakes

M4.3 earthquake 285 km W of Haveluloto, Tonga

A magnitude 4.3 earthquake struck 285 km W of Haveluloto, Tonga on Fri, Oct 21, 2016, 10:44 AM GMT+13 (21:44 UTC), 481 km (299 mi) below the surface.

A larger quake followed: M5.6 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
4.3 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2016-10-20 21:44:57 UTC
Depth
480.6 km (298.6 mi), deep
Epicenter
21.148° S, 177.959° 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, 9.1 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
79°
Stations used
40

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 23 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 4.2Fiji region · 3625 days ago · 585 km deep · 98 km away
  2. 4.4Fiji region · 3622 days ago · 518 km deep · 55 km away
  3. 4.5Fiji region · 3620 days ago · 429 km deep · 28 km away
  4. 4.0251 km WNW of Haveluloto, Tonga · 3618 days ago · 524 km deep · 94 km away
  5. 5.6Fiji region · 3613 days ago · 544 km deep · 85 km away
  6. 4.2Fiji region · 3613 days ago · 556 km deep · 82 km away
  7. 4.8Fiji region · 3609 days ago · 574 km deep · 73 km away
  8. 4.4265 km WNW of Haveluloto, Tonga · 3609 days ago · 487 km deep · 87 km away
  9. 4.6Fiji region · 3605 days ago · 589 km deep · 83 km away
  10. 4.3Fiji region · 3605 days ago · 592 km deep · 69 km away
  11. 4.5Fiji region · 3604 days ago · 565 km deep · 72 km away
  12. 4.4285 km W of Haveluloto, Tonga · 3603 days ago · 510 km deep · 43 km away
  13. 4.3269 km WNW of Haveluloto, Tonga · 3602 days ago · 482 km deep · 93 km away
  14. 4.2Fiji region · 3593 days ago · 611 km deep · 61 km away
  15. 4.8Fiji region · 3592 days ago · 572 km deep · 68 km away
  16. 4.4Fiji region · 3591 days ago · 584 km deep · 97 km away
  17. 4.4299 km WNW of Haveluloto, Tonga · 3589 days ago · 515 km deep · 81 km away
  18. 4.2Fiji region · 3588 days ago · 548 km deep · 82 km away
  19. 4.2265 km WNW of Haveluloto, Tonga · 3584 days ago · 497 km deep · 65 km away
  20. 4.3249 km WNW of Haveluloto, Tonga · 3581 days ago · 514 km deep · 83 km away
  21. 4.4Fiji region · 3579 days ago · 601 km deep · 88 km away
  22. 4.5Fiji region · 3578 days ago · 560 km deep · 78 km away
  23. 4.2Fiji region · 3577 days ago · 475 km deep · 31 km away

Before

  1. 4.4Fiji region · 3638 days ago · 528 km deep · 88 km away
  2. 5.4Fiji region · 3642 days ago · 576 km deep · 73 km away
  3. 4.2285 km WNW of Haveluloto, Tonga · 3643 days ago · 485 km deep · 69 km away
  4. 4.5286 km WNW of Haveluloto, Tonga · 3648 days ago · 509 km deep · 82 km away
  5. 4.0Fiji region · 3655 days ago · 405 km deep · 46 km away
  6. 4.4278 km WNW of Haveluloto, Tonga · 3658 days ago · 516 km deep · 91 km away
  7. 4.3Fiji region · 3659 days ago · 572 km deep · 67 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20007gnl. Read Fri, Oct 2, 2026, 11:23 AM UTC.