Tonga earthquakes

M4.0 earthquake 278 km WNW of Haveluloto, Tonga

A magnitude 4.0 earthquake struck 278 km WNW of Haveluloto, Tonga on Sat, Apr 23, 2016, 8:06 AM GMT+13 (19:06 UTC), 412 km (256 mi) below the surface.

A larger quake followed: M4.9 264 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
4.0 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2016-04-22 19:06:07 UTC
Depth
412.4 km (256.3 mi), deep
Epicenter
20.132° S, 177.659° 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 19.6 km horizontally, 12.2 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
127°
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: 23 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 4.0Fiji region · 3814 days ago · 514 km deep · 91 km away
  2. 4.4Fiji region · 3814 days ago · 600 km deep · 98 km away
  3. 4.2284 km WNW of Haveluloto, Tonga · 3813 days ago · 522 km deep · 15 km away
  4. 4.2295 km WNW of Haveluloto, Tonga · 3813 days ago · 448 km deep · 17 km away
  5. 4.1283 km WNW of Haveluloto, Tonga · 3804 days ago · 525 km deep · 38 km away
  6. 4.3Fiji region · 3801 days ago · 558 km deep · 72 km away
  7. 4.0Fiji region · 3796 days ago · 564 km deep · 72 km away
  8. 4.3Fiji region · 3795 days ago · 540 km deep · 47 km away
  9. 4.1232 km WNW of Haveluloto, Tonga · 3792 days ago · 305 km deep · 59 km away
  10. 4.2281 km WNW of Haveluloto, Tonga · 3791 days ago · 452 km deep · 38 km away
  11. 4.1Fiji region · 3788 days ago · 562 km deep · 83 km away
  12. 4.5265 km WNW of Haveluloto, Tonga · 3786 days ago · 501 km deep · 15 km away
  13. 4.2Fiji region · 3786 days ago · 570 km deep · 94 km away
  14. 4.1Fiji region · 3779 days ago · 509 km deep · 33 km away
  15. 4.4Fiji region · 3778 days ago · 560 km deep · 89 km away
  16. 4.1259 km WNW of Haveluloto, Tonga · 3778 days ago · 509 km deep · 20 km away
  17. 4.4245 km W of Haveluloto, Tonga · 3774 days ago · 456 km deep · 71 km away
  18. 4.1Fiji region · 3773 days ago · 403 km deep · 33 km away
  19. 4.6270 km WNW of Haveluloto, Tonga · 3772 days ago · 470 km deep · 62 km away
  20. 4.9264 km WNW of Haveluloto, Tonga · 3769 days ago · 520 km deep · 28 km away
  21. 4.3256 km WNW of Haveluloto, Tonga · 3762 days ago · 516 km deep · 35 km away
  22. 4.4272 km WNW of Haveluloto, Tonga · 3762 days ago · 544 km deep · 40 km away
  23. 4.2241 km WNW of Haveluloto, Tonga · 3755 days ago · 459 km deep · 38 km away

Before

  1. 4.0246 km WNW of Haveluloto, Tonga · 3820 days ago · 524 km deep · 32 km away
  2. 4.2225 km WNW of Haveluloto, Tonga · 3821 days ago · 319 km deep · 67 km away
  3. 4.3246 km W of Haveluloto, Tonga · 3823 days ago · 482 km deep · 82 km away
  4. 4.1278 km WNW of Haveluloto, Tonga · 3825 days ago · 559 km deep · 40 km away
  5. 4.3263 km WNW of Haveluloto, Tonga · 3827 days ago · 527 km deep · 32 km away
  6. 4.2253 km WNW of Haveluloto, Tonga · 3828 days ago · 467 km deep · 54 km away
  7. 4.1269 km WNW of Haveluloto, Tonga · 3828 days ago · 501 km deep · 35 km away
  8. 4.4180 km WNW of Haveluloto, Tonga · 3832 days ago · 297 km deep · 99 km away
  9. 4.3276 km WNW of Haveluloto, Tonga · 3841 days ago · 502 km deep · 8 km away
  10. 4.1293 km WNW of Haveluloto, Tonga · 3842 days ago · 561 km deep · 41 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10005ddg. Read Fri, Oct 2, 2026, 12:05 AM UTC.