Tonga earthquakes

M4.0 earthquake 283 km WNW of Houma, Tonga

A magnitude 4.0 earthquake struck 283 km WNW of Houma, Tonga on Tue, Aug 29, 2023, 12:55 PM GMT+13 (23:55 UTC), 516 km (320 mi) below the surface.

A larger quake followed: M4.7 250 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
4.0 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-08-28 23:55:01 UTC
Depth
515.5 km (320.3 mi), deep
Epicenter
20.287° S, 177.860° 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 14.9 km horizontally, 6.5 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
70°
Stations used
36

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 27 in the 60 days after this one and 20 in the 30 days before it.

After

  1. 4.0289 km WNW of Houma, Tonga · 1129 days ago · 540 km deep · 54 km away
  2. 4.2Fiji region · 1123 days ago · 531 km deep · 38 km away
  3. 4.1Fiji region · 1123 days ago · 602 km deep · 85 km away
  4. 4.4Fiji region · 1122 days ago · 527 km deep · 29 km away
  5. 4.1287 km NW of Houma, Tonga · 1121 days ago · 552 km deep · 83 km away
  6. 4.5286 km WNW of Houma, Tonga · 1120 days ago · 494 km deep · 12 km away
  7. 4.2Fiji region · 1120 days ago · 525 km deep · 77 km away
  8. 4.0299 km WNW of Houma, Tonga · 1118 days ago · 559 km deep · 28 km away
  9. 4.3Fiji region · 1113 days ago · 600 km deep · 67 km away
  10. 4.0284 km WNW of Houma, Tonga · 1112 days ago · 509 km deep · 36 km away
  11. 4.4280 km WNW of Houma, Tonga · 1111 days ago · 496 km deep · 39 km away
  12. 4.4Fiji region · 1111 days ago · 567 km deep · 96 km away
  13. 4.5Fiji region · 1109 days ago · 542 km deep · 71 km away
  14. 4.5257 km WNW of Houma, Tonga · 1104 days ago · 527 km deep · 49 km away
  15. 4.3Fiji region · 1104 days ago · 598 km deep · 66 km away
  16. 4.3297 km W of Houma, Tonga · 1100 days ago · 623 km deep · 62 km away
  17. 4.3273 km WNW of Houma, Tonga · 1097 days ago · 507 km deep · 11 km away
  18. 4.7250 km WNW of Houma, Tonga · 1094 days ago · 503 km deep · 37 km away
  19. 4.2297 km WNW of Houma, Tonga · 1091 days ago · 564 km deep · 19 km away
  20. 4.7261 km WNW of Houma, Tonga · 1090 days ago · 500 km deep · 27 km away
  21. 4.3256 km WNW of Houma, Tonga · 1087 days ago · 541 km deep · 46 km away
  22. 4.1251 km W of Houma, Tonga · 1079 days ago · 479 km deep · 57 km away
  23. 4.0Fiji region · 1075 days ago · 595 km deep · 56 km away
  24. 4.1Fiji region · 1075 days ago · 517 km deep · 71 km away
  25. 4.3Fiji region · 1075 days ago · 533 km deep · 40 km away
  26. 4.7272 km WNW of Houma, Tonga · 1073 days ago · 518 km deep · 27 km away
  27. 4.1Fiji region · 1071 days ago · 536 km deep · 27 km away

Before

  1. 4.5259 km WNW of Houma, Tonga · 1131 days ago · 529 km deep · 25 km away
  2. 4.3Fiji region · 1135 days ago · 541 km deep · 63 km away
  3. 4.4Fiji region · 1136 days ago · 602 km deep · 48 km away
  4. 4.3241 km WNW of Houma, Tonga · 1138 days ago · 504 km deep · 43 km away
  5. 4.3262 km WNW of Houma, Tonga · 1139 days ago · 376 km deep · 65 km away · felt by 1
  6. 4.3Fiji region · 1139 days ago · 588 km deep · 67 km away
  7. 4.5270 km WNW of Houma, Tonga · 1141 days ago · 533 km deep · 37 km away
  8. 4.2Fiji region · 1142 days ago · 596 km deep · 91 km away
  9. 4.5265 km WNW of Houma, Tonga · 1143 days ago · 493 km deep · 19 km away
  10. 4.0Fiji region · 1144 days ago · 578 km deep · 89 km away
  11. 4.0283 km WNW of Houma, Tonga · 1145 days ago · 502 km deep · 27 km away
  12. 4.2282 km WNW of Houma, Tonga · 1147 days ago · 528 km deep · 26 km away
  13. 4.3268 km WNW of Houma, Tonga · 1147 days ago · 529 km deep · 16 km away
  14. 4.2Fiji region · 1148 days ago · 539 km deep · 40 km away
  15. 4.4296 km WNW of Houma, Tonga · 1149 days ago · 536 km deep · 14 km away
  16. 4.2Fiji region · 1150 days ago · 594 km deep · 92 km away
  17. 4.1264 km WNW of Houma, Tonga · 1150 days ago · 557 km deep · 36 km away
  18. 4.1294 km W of Houma, Tonga · 1152 days ago · 573 km deep · 83 km away
  19. 4.1Fiji region · 1154 days ago · 420 km deep · 63 km away
  20. 4.4Fiji region · 1160 days ago · 394 km deep · 28 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000ksng. Read Fri, Oct 2, 2026, 6:19 PM UTC.