Tonga earthquakes

M4.5 earthquake 298 km NW of Nuku‘alofa, Tonga

A magnitude 4.5 earthquake struck 298 km NW of Nuku‘alofa, Tonga on Mon, Feb 20, 2017, 6:07 AM GMT+13 (17:07 UTC), 589 km (366 mi) below the surface.

A larger quake followed: M4.9 277 km NW 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
4.5 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2017-02-19 17:07:17 UTC
Depth
589.1 km (366.1 mi), deep
Epicenter
19.336° S, 177.323° 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, 11.5 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
81°
Stations used
43

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 5 in the 30 days before it.

After

  1. 4.3Fiji region · 3508 days ago · 426 km deep · 39 km away
  2. 4.4Fiji region · 3504 days ago · 505 km deep · 15 km away
  3. 4.5Fiji region · 3500 days ago · 611 km deep · 94 km away
  4. 4.2Fiji region · 3496 days ago · 490 km deep · 78 km away
  5. 4.3Fiji region · 3494 days ago · 440 km deep · 59 km away
  6. 4.3273 km WNW of Haveluloto, Tonga · 3490 days ago · 557 km deep · 89 km away
  7. 4.5Fiji region · 3480 days ago · 567 km deep · 74 km away
  8. 4.3285 km NW of Haveluloto, Tonga · 3476 days ago · 389 km deep · 44 km away
  9. 4.4Fiji region · 3475 days ago · 620 km deep · 61 km away
  10. 4.4Fiji region · 3467 days ago · 568 km deep · 25 km away
  11. 4.3Fiji region · 3464 days ago · 406 km deep · 18 km away
  12. 4.9277 km NW of Haveluloto, Tonga · 3463 days ago · 407 km deep · 45 km away
  13. 4.3265 km NW of Haveluloto, Tonga · 3462 days ago · 364 km deep · 51 km away
  14. 4.3Fiji region · 3458 days ago · 580 km deep · 83 km away
  15. 4.3282 km WNW of Haveluloto, Tonga · 3455 days ago · 505 km deep · 95 km away
  16. 4.4283 km WNW of Pangai, Tonga · 3455 days ago · 297 km deep · 95 km away
  17. 4.4Fiji region · 3454 days ago · 572 km deep · 27 km away
  18. 4.4Fiji region · 3453 days ago · 372 km deep · 50 km away
  19. 4.8Fiji region · 3453 days ago · 609 km deep · 62 km away
  20. 4.2Fiji region · 3453 days ago · 579 km deep · 17 km away
  21. 4.2Fiji region · 3451 days ago · 526 km deep · 97 km away

Before

  1. 4.5267 km WNW of Haveluloto, Tonga · 3516 days ago · 386 km deep · 95 km away
  2. 4.1273 km WNW of Haveluloto, Tonga · 3525 days ago · 526 km deep · 89 km away
  3. 4.3286 km NW of Haveluloto, Tonga · 3526 days ago · 573 km deep · 33 km away
  4. 4.3Fiji region · 3528 days ago · 602 km deep · 68 km away
  5. 4.5263 km WNW of Haveluloto, Tonga · 3535 days ago · 530 km deep · 68 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20008ktn. Read Thu, Oct 1, 2026, 4:23 AM UTC.