Tonga earthquakes

M4.4 earthquake 280 km WNW of Haveluloto, Tonga

A magnitude 4.4 earthquake struck 280 km WNW of Haveluloto, Tonga on Thu, Dec 21, 2017, 8:33 PM GMT+13 (07:33 UTC), 516 km (320 mi) below the surface.

A larger quake followed: M5.3 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
4.4 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2017-12-21 07:33:00 UTC
Depth
515.8 km (320.5 mi), deep
Epicenter
20.423° S, 177.789° 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 14.5 km horizontally, 11.1 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
91°
Stations used
38

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 21 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 4.2288 km WNW of Haveluloto, Tonga · 3200 days ago · 367 km deep · 43 km away
  2. 4.3288 km WNW of Haveluloto, Tonga · 3197 days ago · 537 km deep · 8 km away
  3. 4.7Fiji region · 3194 days ago · 596 km deep · 66 km away
  4. 4.1287 km WNW of Haveluloto, Tonga · 3189 days ago · 450 km deep · 55 km away
  5. 4.5255 km WNW of Haveluloto, Tonga · 3188 days ago · 462 km deep · 30 km away
  6. 4.4272 km WNW of Haveluloto, Tonga · 3185 days ago · 394 km deep · 76 km away
  7. 4.2256 km WNW of Haveluloto, Tonga · 3184 days ago · 492 km deep · 24 km away
  8. 4.5276 km WNW of Haveluloto, Tonga · 3180 days ago · 494 km deep · 27 km away
  9. 4.3Fiji region · 3174 days ago · 589 km deep · 84 km away
  10. 4.3281 km WNW of Haveluloto, Tonga · 3172 days ago · 539 km deep · 19 km away
  11. 4.4Fiji region · 3170 days ago · 550 km deep · 63 km away
  12. 4.0246 km WNW of Haveluloto, Tonga · 3170 days ago · 447 km deep · 71 km away
  13. 4.4251 km W of Haveluloto, Tonga · 3170 days ago · 382 km deep · 88 km away
  14. 4.0288 km WNW of Haveluloto, Tonga · 3169 days ago · 473 km deep · 10 km away
  15. 4.5Fiji region · 3168 days ago · 512 km deep · 75 km away
  16. 4.3262 km WNW of Haveluloto, Tonga · 3161 days ago · 467 km deep · 22 km away
  17. 5.3Fiji region · 3159 days ago · 560 km deep · 48 km away
  18. 4.2279 km WNW of Haveluloto, Tonga · 3155 days ago · 528 km deep · 5 km away
  19. 4.2Fiji region · 3152 days ago · 561 km deep · 80 km away
  20. 4.1Fiji region · 3151 days ago · 546 km deep · 63 km away
  21. 4.4293 km WNW of Haveluloto, Tonga · 3149 days ago · 453 km deep · 18 km away

Before

  1. 4.3298 km WNW of Haveluloto, Tonga · 3207 days ago · 502 km deep · 26 km away
  2. 4.2271 km WNW of Haveluloto, Tonga · 3212 days ago · 530 km deep · 26 km away
  3. 4.2276 km WNW of Haveluloto, Tonga · 3216 days ago · 379 km deep · 15 km away
  4. 4.2278 km WNW of Haveluloto, Tonga · 3217 days ago · 490 km deep · 27 km away
  5. 4.4291 km WNW of Haveluloto, Tonga · 3219 days ago · 475 km deep · 12 km away
  6. 4.4278 km W of Haveluloto, Tonga · 3220 days ago · 447 km deep · 44 km away
  7. 4.2279 km WNW of Haveluloto, Tonga · 3223 days ago · 526 km deep · 55 km away
  8. 4.5Fiji region · 3228 days ago · 573 km deep · 59 km away
  9. 4.6260 km WNW of Haveluloto, Tonga · 3228 days ago · 509 km deep · 38 km away
  10. 4.5273 km WNW of Haveluloto, Tonga · 3228 days ago · 479 km deep · 8 km away
  11. 4.3286 km W of Haveluloto, Tonga · 3235 days ago · 499 km deep · 45 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000c12s. Read Fri, Oct 2, 2026, 3:12 AM UTC.