Tonga earthquakes

M4.2 earthquake 272 km WNW of Houma, Tonga

A magnitude 4.2 earthquake struck 272 km WNW of Houma, Tonga on Tue, Apr 18, 2023, 11:50 AM GMT+13 (22:50 UTC), 520 km (323 mi) below the surface.

A larger quake followed: M4.5 297 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
4.2 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-04-17 22:50:21 UTC
Depth
520.4 km (323.4 mi), deep
Epicenter
20.239° S, 177.720° 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 21.1 km horizontally, 10.8 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
95°
Stations used
20

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 4.2296 km WNW of Houma, Tonga · 1261 days ago · 413 km deep · 31 km away
  2. 4.0Fiji region · 1261 days ago · 460 km deep · 7 km away
  3. 4.2253 km WNW of Houma, Tonga · 1261 days ago · 501 km deep · 34 km away
  4. 4.0Fiji region · 1245 days ago · 558 km deep · 62 km away
  5. 4.3Fiji region · 1245 days ago · 559 km deep · 94 km away
  6. 4.4Fiji region · 1240 days ago · 570 km deep · 45 km away
  7. 4.1Fiji region · 1237 days ago · 601 km deep · 68 km away
  8. 4.3273 km W of Houma, Tonga · 1231 days ago · 440 km deep · 86 km away
  9. 4.3277 km W of Houma, Tonga · 1228 days ago · 474 km deep · 68 km away
  10. 4.1279 km WNW of Houma, Tonga · 1224 days ago · 525 km deep · 37 km away
  11. 4.2Fiji region · 1224 days ago · 602 km deep · 89 km away
  12. 4.5297 km WNW of Houma, Tonga · 1217 days ago · 532 km deep · 58 km away
  13. 4.2Fiji region · 1216 days ago · 551 km deep · 58 km away
  14. 4.3258 km NW of Houma, Tonga · 1213 days ago · 542 km deep · 71 km away
  15. 4.2Fiji region · 1212 days ago · 570 km deep · 81 km away
  16. 4.3Fiji region · 1209 days ago · 562 km deep · 99 km away
  17. 4.2Fiji region · 1208 days ago · 559 km deep · 36 km away
  18. 4.3Fiji region · 1205 days ago · 562 km deep · 50 km away

Before

  1. 4.1269 km WNW of Houma, Tonga · 1265 days ago · 347 km deep · 19 km away
  2. 4.4286 km WNW of Houma, Tonga · 1266 days ago · 517 km deep · 52 km away
  3. 4.3295 km NW of Houma, Tonga · 1268 days ago · 398 km deep · 62 km away
  4. 4.2Fiji region · 1273 days ago · 536 km deep · 60 km away
  5. 4.1Fiji region · 1275 days ago · 542 km deep · 57 km away
  6. 4.2Fiji region · 1276 days ago · 588 km deep · 97 km away
  7. 4.2270 km WNW of Houma, Tonga · 1278 days ago · 488 km deep · 2 km away
  8. 4.2Fiji region · 1279 days ago · 535 km deep · 65 km away
  9. 4.0267 km NW of Houma, Tonga · 1282 days ago · 563 km deep · 69 km away
  10. 4.2Fiji region · 1284 days ago · 550 km deep · 88 km away
  11. 4.7Fiji region · 1287 days ago · 523 km deep · 22 km away
  12. 4.4299 km WNW of Houma, Tonga · 1287 days ago · 484 km deep · 49 km away
  13. 4.3Fiji region · 1291 days ago · 611 km deep · 87 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000k63y. Read Fri, Oct 2, 2026, 1:14 AM UTC.