Tonga earthquakes

M4.3 earthquake 285 km WNW of Houma, Tonga

A magnitude 4.3 earthquake struck 285 km WNW of Houma, Tonga on Tue, Sep 23, 2025, 12:51 AM GMT+13 (11:51 UTC), 521 km (324 mi) below the surface.

A larger quake followed: M4.7 293 km WNW of Houma, 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
4.3 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2025-09-22 11:51:10 UTC
Depth
520.9 km (323.7 mi), deep
Epicenter
20.388° S, 177.915° 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 15.7 km horizontally, 11.5 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
128°
Stations used
45

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 4.6Fiji region · 373 days ago · 615 km deep · 82 km away
  2. 4.2264 km WNW of Houma, Tonga · 365 days ago · 467 km deep · 21 km away
  3. 4.2252 km WNW of Houma, Tonga · 362 days ago · 549 km deep · 40 km away
  4. 4.5Fiji region · 360 days ago · 600 km deep · 91 km away
  5. 4.4276 km WNW of Houma, Tonga · 353 days ago · 524 km deep · 12 km away
  6. 4.2Fiji region · 352 days ago · 478 km deep · 58 km away
  7. 4.2277 km WNW of Houma, Tonga · 351 days ago · 487 km deep · 22 km away
  8. 4.4Fiji region · 350 days ago · 408 km deep · 79 km away
  9. 4.4297 km WNW of Houma, Tonga · 348 days ago · 532 km deep · 16 km away
  10. 4.4277 km W of Houma, Tonga · 346 days ago · 475 km deep · 54 km away
  11. 4.7293 km WNW of Houma, Tonga · 345 days ago · 530 km deep · 16 km away
  12. 4.4Fiji region · 337 days ago · 551 km deep · 33 km away
  13. 4.4Fiji region · 334 days ago · 559 km deep · 45 km away
  14. 4.3Fiji region · 330 days ago · 587 km deep · 93 km away
  15. 4.4Fiji region · 330 days ago · 540 km deep · 44 km away
  16. 4.2Fiji region · 327 days ago · 607 km deep · 94 km away
  17. 4.3274 km WNW of Houma, Tonga · 326 days ago · 521 km deep · 33 km away
  18. 4.5Fiji region · 324 days ago · 526 km deep · 16 km away
  19. 4.4Fiji region · 320 days ago · 589 km deep · 99 km away

Before

  1. 4.2259 km WNW of Houma, Tonga · 381 days ago · 534 km deep · 28 km away
  2. 4.0297 km WNW of Houma, Tonga · 387 days ago · 517 km deep · 26 km away
  3. 4.2Fiji region · 391 days ago · 591 km deep · 58 km away
  4. 4.4Fiji region · 394 days ago · 576 km deep · 20 km away
  5. 4.2Fiji region · 394 days ago · 613 km deep · 98 km away
  6. 4.4277 km WNW of Houma, Tonga · 396 days ago · 550 km deep · 9 km away
  7. 4.7274 km WNW of Houma, Tonga · 396 days ago · 532 km deep · 15 km away
  8. 4.4297 km WNW of Houma, Tonga · 397 days ago · 430 km deep · 45 km away
  9. 4.7257 km WNW of Houma, Tonga · 397 days ago · 470 km deep · 31 km away
  10. 4.3Fiji region · 397 days ago · 554 km deep · 98 km away
  11. 4.5Fiji region · 397 days ago · 548 km deep · 100 km away
  12. 4.4267 km WNW of Houma, Tonga · 399 days ago · 508 km deep · 24 km away
  13. 4.4265 km WNW of Houma, Tonga · 402 days ago · 493 km deep · 25 km away
  14. 4.2288 km WNW of Houma, Tonga · 404 days ago · 562 km deep · 24 km away
  15. 4.5271 km WNW of Houma, Tonga · 407 days ago · 505 km deep · 27 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000rhbf. Read Sun, Oct 4, 2026, 10:56 PM UTC.