Tonga earthquakes

M4.3 earthquake 241 km WNW of Houma, Tonga

A magnitude 4.3 earthquake struck 241 km WNW of Houma, Tonga on Tue, Aug 22, 2023, 3:41 AM GMT+13 (14:41 UTC), 504 km (313 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
4.3 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-08-21 14:41:55 UTC
Depth
504.2 km (313.3 mi), deep
Epicenter
20.482° S, 177.501° 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 15.4 km horizontally, 10.6 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
71°
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: 22 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 4.4Fiji region · 1136 days ago · 602 km deep · 88 km away
  2. 4.3Fiji region · 1135 days ago · 541 km deep · 92 km away
  3. 4.5259 km WNW of Houma, Tonga · 1130 days ago · 529 km deep · 19 km away
  4. 4.0283 km WNW of Houma, Tonga · 1130 days ago · 516 km deep · 43 km away
  5. 4.0289 km WNW of Houma, Tonga · 1128 days ago · 540 km deep · 75 km away
  6. 4.2Fiji region · 1122 days ago · 531 km deep · 79 km away
  7. 4.4Fiji region · 1121 days ago · 527 km deep · 70 km away
  8. 4.1287 km NW of Houma, Tonga · 1120 days ago · 552 km deep · 97 km away
  9. 4.5286 km WNW of Houma, Tonga · 1119 days ago · 494 km deep · 49 km away
  10. 4.0299 km WNW of Houma, Tonga · 1118 days ago · 559 km deep · 65 km away
  11. 4.0244 km W of Houma, Tonga · 1114 days ago · 389 km deep · 86 km away
  12. 4.0284 km WNW of Houma, Tonga · 1112 days ago · 509 km deep · 59 km away
  13. 4.4280 km WNW of Houma, Tonga · 1111 days ago · 496 km deep · 59 km away
  14. 4.5Fiji region · 1108 days ago · 542 km deep · 93 km away
  15. 4.5257 km WNW of Houma, Tonga · 1103 days ago · 527 km deep · 49 km away
  16. 4.3297 km W of Houma, Tonga · 1099 days ago · 623 km deep · 74 km away
  17. 4.3273 km WNW of Houma, Tonga · 1096 days ago · 507 km deep · 35 km away
  18. 4.7250 km WNW of Houma, Tonga · 1094 days ago · 503 km deep · 13 km away
  19. 4.2297 km WNW of Houma, Tonga · 1091 days ago · 564 km deep · 57 km away
  20. 4.7261 km WNW of Houma, Tonga · 1089 days ago · 500 km deep · 30 km away
  21. 4.3256 km WNW of Houma, Tonga · 1086 days ago · 541 km deep · 45 km away
  22. 4.1251 km W of Houma, Tonga · 1079 days ago · 479 km deep · 37 km away

Before

  1. 4.3262 km WNW of Houma, Tonga · 1138 days ago · 376 km deep · 67 km away · felt by 1
  2. 4.5270 km WNW of Houma, Tonga · 1140 days ago · 533 km deep · 38 km away
  3. 4.5265 km WNW of Houma, Tonga · 1143 days ago · 493 km deep · 26 km away
  4. 4.0283 km WNW of Houma, Tonga · 1144 days ago · 502 km deep · 54 km away
  5. 4.2282 km WNW of Houma, Tonga · 1146 days ago · 528 km deep · 51 km away
  6. 4.3268 km WNW of Houma, Tonga · 1146 days ago · 529 km deep · 30 km away
  7. 4.2Fiji region · 1147 days ago · 539 km deep · 82 km away
  8. 4.4Fiji region · 1147 days ago · 250 km deep · 75 km away
  9. 4.4296 km WNW of Houma, Tonga · 1148 days ago · 536 km deep · 57 km away
  10. 4.1264 km WNW of Houma, Tonga · 1150 days ago · 557 km deep · 42 km away
  11. 4.1294 km W of Houma, Tonga · 1152 days ago · 573 km deep · 87 km away
  12. 4.1Fiji region · 1153 days ago · 420 km deep · 87 km away
  13. 4.4Fiji region · 1159 days ago · 394 km deep · 20 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000kpwt. Read Fri, Oct 2, 2026, 4:38 AM UTC.