Tonga earthquakes

M4.5 earthquake 286 km WNW of Houma, Tonga

A magnitude 4.5 earthquake struck 286 km WNW of Houma, Tonga on Sat, Sep 9, 2023, 6:43 AM GMT+13 (17:43 UTC), 494 km (307 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
4.5 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-09-08 17:43:16 UTC
Depth
493.9 km (306.9 mi), deep
Epicenter
20.177° S, 177.845° 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 9.8 km horizontally, 6.4 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
60°
Stations used
47

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 22 in the 30 days before it.

After

  1. 4.2Fiji region · 1119 days ago · 525 km deep · 86 km away
  2. 4.0299 km WNW of Houma, Tonga · 1118 days ago · 559 km deep · 16 km away
  3. 4.3Fiji region · 1112 days ago · 600 km deep · 65 km away
  4. 4.0284 km WNW of Houma, Tonga · 1112 days ago · 509 km deep · 25 km away
  5. 4.4280 km WNW of Houma, Tonga · 1111 days ago · 496 km deep · 28 km away
  6. 4.4Fiji region · 1110 days ago · 567 km deep · 84 km away
  7. 4.5Fiji region · 1108 days ago · 542 km deep · 80 km away
  8. 4.5257 km WNW of Houma, Tonga · 1104 days ago · 527 km deep · 42 km away
  9. 4.3Fiji region · 1103 days ago · 598 km deep · 55 km away
  10. 4.9Fiji region · 1099 days ago · 596 km deep · 97 km away
  11. 4.3297 km W of Houma, Tonga · 1099 days ago · 623 km deep · 74 km away
  12. 4.3273 km WNW of Houma, Tonga · 1096 days ago · 507 km deep · 15 km away
  13. 4.7250 km WNW of Houma, Tonga · 1094 days ago · 503 km deep · 46 km away
  14. 4.2297 km WNW of Houma, Tonga · 1091 days ago · 564 km deep · 28 km away
  15. 4.7261 km WNW of Houma, Tonga · 1089 days ago · 500 km deep · 25 km away
  16. 4.3256 km WNW of Houma, Tonga · 1086 days ago · 541 km deep · 40 km away
  17. 4.1251 km W of Houma, Tonga · 1079 days ago · 479 km deep · 68 km away
  18. 4.0Fiji region · 1075 days ago · 595 km deep · 59 km away
  19. 4.1Fiji region · 1074 days ago · 517 km deep · 62 km away
  20. 4.3Fiji region · 1074 days ago · 533 km deep · 50 km away
  21. 4.7272 km WNW of Houma, Tonga · 1073 days ago · 518 km deep · 39 km away
  22. 4.1Fiji region · 1070 days ago · 536 km deep · 24 km away
  23. 4.5Fiji region · 1067 days ago · 584 km deep · 61 km away
  24. 4.1266 km WNW of Houma, Tonga · 1063 days ago · 501 km deep · 40 km away
  25. 4.4272 km WNW of Houma, Tonga · 1063 days ago · 378 km deep · 40 km away
  26. 4.2Fiji region · 1062 days ago · 545 km deep · 99 km away

Before

  1. 4.1287 km NW of Houma, Tonga · 1120 days ago · 552 km deep · 72 km away
  2. 4.4Fiji region · 1121 days ago · 527 km deep · 32 km away
  3. 4.1Fiji region · 1122 days ago · 602 km deep · 92 km away
  4. 4.2Fiji region · 1123 days ago · 531 km deep · 29 km away
  5. 4.3Fiji region · 1125 days ago · 532 km deep · 93 km away
  6. 4.0289 km WNW of Houma, Tonga · 1128 days ago · 540 km deep · 42 km away
  7. 4.0283 km WNW of Houma, Tonga · 1130 days ago · 516 km deep · 12 km away
  8. 4.5259 km WNW of Houma, Tonga · 1131 days ago · 529 km deep · 33 km away
  9. 4.3Fiji region · 1135 days ago · 541 km deep · 72 km away
  10. 4.4Fiji region · 1136 days ago · 602 km deep · 52 km away
  11. 4.3241 km WNW of Houma, Tonga · 1138 days ago · 504 km deep · 49 km away
  12. 4.3262 km WNW of Houma, Tonga · 1138 days ago · 376 km deep · 55 km away · felt by 1
  13. 4.3Fiji region · 1139 days ago · 588 km deep · 64 km away
  14. 4.5270 km WNW of Houma, Tonga · 1140 days ago · 533 km deep · 49 km away
  15. 4.2Fiji region · 1141 days ago · 596 km deep · 81 km away
  16. 4.5265 km WNW of Houma, Tonga · 1143 days ago · 493 km deep · 23 km away
  17. 4.0Fiji region · 1143 days ago · 578 km deep · 78 km away
  18. 4.0283 km WNW of Houma, Tonga · 1144 days ago · 502 km deep · 15 km away
  19. 4.2282 km WNW of Houma, Tonga · 1146 days ago · 528 km deep · 15 km away
  20. 4.3268 km WNW of Houma, Tonga · 1147 days ago · 529 km deep · 19 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000kvjw. Read Fri, Oct 2, 2026, 6:31 AM UTC.