Tonga earthquakes

M4.3 earthquake 273 km WNW of Houma, Tonga

A magnitude 4.3 earthquake struck 273 km WNW of Houma, Tonga on Mon, Oct 2, 2023, 9:08 AM GMT+13 (20:08 UTC), 507 km (315 mi) below the surface.

A larger quake followed: M4.9 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
4.3 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-10-01 20:08:38 UTC
Depth
507.1 km (315.1 mi), deep
Epicenter
20.276° S, 177.753° 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 9.4 km horizontally, 6.4 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
69°
Stations used
74

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 26 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 4.7250 km WNW of Houma, Tonga · 1094 days ago · 503 km deep · 32 km away
  2. 4.2297 km WNW of Houma, Tonga · 1091 days ago · 564 km deep · 30 km away
  3. 4.7261 km WNW of Houma, Tonga · 1090 days ago · 500 km deep · 16 km away
  4. 4.3256 km WNW of Houma, Tonga · 1087 days ago · 541 km deep · 36 km away
  5. 4.1251 km W of Houma, Tonga · 1079 days ago · 479 km deep · 55 km away
  6. 4.0Fiji region · 1075 days ago · 595 km deep · 67 km away
  7. 4.1Fiji region · 1075 days ago · 517 km deep · 76 km away
  8. 4.3Fiji region · 1075 days ago · 533 km deep · 50 km away
  9. 4.7272 km WNW of Houma, Tonga · 1073 days ago · 518 km deep · 29 km away
  10. 4.1Fiji region · 1071 days ago · 536 km deep · 36 km away
  11. 4.5Fiji region · 1068 days ago · 584 km deep · 73 km away
  12. 4.1266 km WNW of Houma, Tonga · 1064 days ago · 501 km deep · 28 km away
  13. 4.4272 km WNW of Houma, Tonga · 1063 days ago · 378 km deep · 30 km away
  14. 4.3256 km WNW of Houma, Tonga · 1060 days ago · 502 km deep · 38 km away
  15. 4.0285 km WNW of Houma, Tonga · 1059 days ago · 496 km deep · 13 km away
  16. 4.8Fiji region · 1056 days ago · 561 km deep · 75 km away
  17. 4.9Fiji region · 1052 days ago · 590 km deep · 95 km away
  18. 4.4Fiji region · 1051 days ago · 594 km deep · 82 km away
  19. 4.2269 km WNW of Houma, Tonga · 1048 days ago · 499 km deep · 6 km away
  20. 4.1274 km WNW of Houma, Tonga · 1047 days ago · 526 km deep · 5 km away
  21. 4.1269 km WNW of Houma, Tonga · 1044 days ago · 493 km deep · 25 km away
  22. 4.1278 km WNW of Houma, Tonga · 1042 days ago · 460 km deep · 28 km away
  23. 4.0264 km WNW of Houma, Tonga · 1041 days ago · 457 km deep · 24 km away
  24. 4.6Fiji region · 1039 days ago · 544 km deep · 48 km away
  25. 4.3277 km WNW of Houma, Tonga · 1037 days ago · 548 km deep · 14 km away
  26. 4.7Fiji region · 1037 days ago · 609 km deep · 79 km away

Before

  1. 4.3297 km W of Houma, Tonga · 1100 days ago · 623 km deep · 69 km away
  2. 4.3Fiji region · 1104 days ago · 598 km deep · 68 km away
  3. 4.5257 km WNW of Houma, Tonga · 1104 days ago · 527 km deep · 39 km away
  4. 4.5Fiji region · 1109 days ago · 542 km deep · 80 km away
  5. 4.4Fiji region · 1111 days ago · 567 km deep · 94 km away
  6. 4.4280 km WNW of Houma, Tonga · 1111 days ago · 496 km deep · 34 km away
  7. 4.0284 km WNW of Houma, Tonga · 1112 days ago · 509 km deep · 32 km away
  8. 4.3Fiji region · 1113 days ago · 600 km deep · 77 km away
  9. 4.0299 km WNW of Houma, Tonga · 1118 days ago · 559 km deep · 31 km away
  10. 4.2Fiji region · 1120 days ago · 525 km deep · 87 km away
  11. 4.5286 km WNW of Houma, Tonga · 1120 days ago · 494 km deep · 15 km away
  12. 4.1287 km NW of Houma, Tonga · 1121 days ago · 552 km deep · 78 km away
  13. 4.4Fiji region · 1122 days ago · 527 km deep · 40 km away
  14. 4.1Fiji region · 1123 days ago · 602 km deep · 95 km away
  15. 4.2Fiji region · 1123 days ago · 531 km deep · 44 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000lc4y. Read Fri, Oct 2, 2026, 6:27 PM UTC.