Tonga earthquakes

M4.3 earthquake 297 km NW of Houma, Tonga

A magnitude 4.3 earthquake struck 297 km NW of Houma, Tonga on Tue, Feb 21, 2023, 10:31 AM GMT+13 (21:31 UTC), 596 km (370 mi) below the surface.

A larger quake followed: M4.5 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
2023-02-20 21:31:00 UTC
Depth
595.8 km (370.2 mi), deep
Epicenter
19.260° S, 177.303° 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 18.3 km horizontally, 10.2 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
87°
Stations used
33

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 21 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 4.4Fiji region · 1319 days ago · 460 km deep · 89 km away
  2. 4.5Fiji region · 1315 days ago · 456 km deep · 81 km away
  3. 4.4252 km WNW of Pangai, Tonga · 1314 days ago · 279 km deep · 71 km away
  4. 4.3Fiji region · 1311 days ago · 565 km deep · 44 km away
  5. 4.3Fiji region · 1310 days ago · 611 km deep · 64 km away
  6. 4.4Fiji region · 1309 days ago · 510 km deep · 50 km away
  7. 4.2Fiji region · 1305 days ago · 573 km deep · 30 km away
  8. 4.3Fiji region · 1304 days ago · 589 km deep · 57 km away
  9. 4.1Fiji region · 1303 days ago · 412 km deep · 74 km away
  10. 4.3Fiji region · 1301 days ago · 606 km deep · 86 km away
  11. 4.2288 km WNW of Houma, Tonga · 1295 days ago · 504 km deep · 75 km away
  12. 4.2Fiji region · 1292 days ago · 545 km deep · 91 km away
  13. 4.0Fiji region · 1291 days ago · 334 km deep · 99 km away
  14. 4.4Fiji region · 1291 days ago · 553 km deep · 41 km away
  15. 4.2Fiji region · 1285 days ago · 550 km deep · 31 km away
  16. 4.0267 km NW of Houma, Tonga · 1283 days ago · 563 km deep · 51 km away
  17. 4.2Fiji region · 1280 days ago · 535 km deep · 63 km away
  18. 4.3295 km NW of Houma, Tonga · 1268 days ago · 398 km deep · 60 km away
  19. 4.4286 km WNW of Houma, Tonga · 1267 days ago · 517 km deep · 67 km away
  20. 4.3Fiji region · 1263 days ago · 597 km deep · 80 km away
  21. 4.2296 km WNW of Houma, Tonga · 1262 days ago · 413 km deep · 99 km away

Before

  1. 4.4250 km NW of Houma, Tonga · 1322 days ago · 345 km deep · 51 km away
  2. 4.3Fiji region · 1322 days ago · 556 km deep · 27 km away
  3. 4.2284 km WNW of Houma, Tonga · 1323 days ago · 389 km deep · 67 km away
  4. 4.6258 km WNW of Houma, Tonga · 1326 days ago · 583 km deep · 78 km away
  5. 4.2Fiji region · 1331 days ago · 614 km deep · 64 km away
  6. 4.4Fiji region · 1333 days ago · 620 km deep · 81 km away
  7. 4.2287 km WNW of Haveluloto, Tonga · 1340 days ago · 561 km deep · 90 km away
  8. 4.3Fiji region · 1349 days ago · 576 km deep · 17 km away
  9. 4.6Fiji region · 1349 days ago · 387 km deep · 9 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000jga5. Read Fri, Oct 2, 2026, 4:06 PM UTC.