Tonga earthquakes

M4.3 earthquake 277 km W of Houma, Tonga

A magnitude 4.3 earthquake struck 277 km W of Houma, Tonga on Tue, May 23, 2023, 8:35 AM GMT+13 (19:35 UTC), 474 km (294 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
2023-05-22 19:35:28 UTC
Depth
473.6 km (294.3 mi), deep
Epicenter
20.816° S, 177.943° 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 16.9 km horizontally, 10.2 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
86°
Stations used
25

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 4.1279 km WNW of Houma, Tonga · 1224 days ago · 525 km deep · 33 km away
  2. 4.2Fiji region · 1224 days ago · 602 km deep · 82 km away
  3. 4.5297 km WNW of Houma, Tonga · 1217 days ago · 532 km deep · 27 km away
  4. 4.2Fiji region · 1216 days ago · 551 km deep · 39 km away
  5. 4.5Fiji region · 1213 days ago · 572 km deep · 74 km away
  6. 4.2Fiji region · 1212 days ago · 570 km deep · 34 km away
  7. 4.3Fiji region · 1210 days ago · 562 km deep · 63 km away
  8. 4.2Fiji region · 1208 days ago · 559 km deep · 73 km away
  9. 4.5Fiji region · 1208 days ago · 605 km deep · 82 km away
  10. 4.3Fiji region · 1206 days ago · 562 km deep · 50 km away
  11. 4.7Fiji region · 1204 days ago · 554 km deep · 72 km away
  12. 4.0Fiji region · 1201 days ago · 533 km deep · 79 km away
  13. 4.6255 km WNW of Houma, Tonga · 1200 days ago · 481 km deep · 53 km away
  14. 4.4269 km WNW of Houma, Tonga · 1196 days ago · 487 km deep · 64 km away
  15. 4.9Fiji region · 1191 days ago · 524 km deep · 53 km away
  16. 4.0Fiji region · 1191 days ago · 553 km deep · 89 km away
  17. 4.2Fiji region · 1185 days ago · 553 km deep · 71 km away
  18. 4.2Fiji region · 1183 days ago · 566 km deep · 5 km away
  19. 4.8Fiji region · 1183 days ago · 571 km deep · 77 km away
  20. 4.1284 km WNW of Houma, Tonga · 1181 days ago · 514 km deep · 37 km away

Before

  1. 3.9Fiji region · 1229 days ago · 562 km deep · 59 km away
  2. 4.3273 km W of Houma, Tonga · 1232 days ago · 440 km deep · 19 km away
  3. 4.1Fiji region · 1238 days ago · 601 km deep · 80 km away
  4. 4.1Fiji region · 1243 days ago · 539 km deep · 58 km away
  5. 4.0Fiji region · 1245 days ago · 558 km deep · 52 km away
  6. 4.4Fiji region · 1245 days ago · 536 km deep · 58 km away
  7. 4.3210 km W of Houma, Tonga · 1252 days ago · 292 km deep · 96 km away
  8. 4.2Fiji region · 1253 days ago · 565 km deep · 87 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000k4al. Read Fri, Oct 2, 2026, 8:31 AM UTC.