Tonga earthquakes

M4.5 earthquake 291 km WNW of Houma, Tonga

A magnitude 4.5 earthquake struck 291 km WNW of Houma, Tonga on Tue, Mar 31, 2026, 10:32 PM GMT+13 (09:32 UTC), 520 km (323 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
2026-03-31 09:32:55 UTC
Depth
520.5 km (323.4 mi), deep
Epicenter
20.472° S, 177.999° 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 14.4 km horizontally, 7.8 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
140°
Stations used
60

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. 4.7289 km WNW of Houma, Tonga · 187 days ago · 548 km deep · 16 km away
  2. 4.6247 km WNW of Houma, Tonga · 185 days ago · 544 km deep · 69 km away
  3. 4.2Fiji region · 180 days ago · 534 km deep · 33 km away
  4. 4.1Fiji region · 178 days ago · 567 km deep · 70 km away
  5. 4.9Fiji region · 178 days ago · 531 km deep · 24 km away
  6. 4.0272 km WNW of Houma, Tonga · 172 days ago · 550 km deep · 19 km away
  7. 4.6289 km WNW of Houma, Tonga · 172 days ago · 546 km deep · 4 km away
  8. 4.0281 km WNW of Houma, Tonga · 170 days ago · 509 km deep · 24 km away
  9. 4.1Fiji region · 162 days ago · 550 km deep · 39 km away
  10. 4.1266 km WNW of Houma, Tonga · 159 days ago · 533 km deep · 51 km away
  11. 4.5293 km W of Houma, Tonga · 156 days ago · 504 km deep · 41 km away
  12. 4.3299 km W of Houma, Tonga · 154 days ago · 492 km deep · 98 km away
  13. 4.4267 km WNW of Houma, Tonga · 151 days ago · 478 km deep · 35 km away
  14. 4.1Fiji region · 147 days ago · 535 km deep · 23 km away
  15. 4.3Fiji region · 142 days ago · 597 km deep · 58 km away
  16. 4.4Fiji region · 137 days ago · 594 km deep · 72 km away
  17. 4.4Fiji region · 134 days ago · 602 km deep · 75 km away
  18. 4.4Fiji region · 129 days ago · 557 km deep · 57 km away

Before

  1. 4.2Fiji region · 187 days ago · 546 km deep · 26 km away
  2. 4.2Fiji region · 192 days ago · 617 km deep · 84 km away
  3. 4.1Fiji region · 195 days ago · 517 km deep · 63 km away
  4. 4.3266 km W of Houma, Tonga · 196 days ago · 416 km deep · 85 km away
  5. 4.3287 km WNW of Houma, Tonga · 197 days ago · 515 km deep · 10 km away
  6. 4.8Fiji region · 198 days ago · 575 km deep · 49 km away
  7. 4.4285 km WNW of Houma, Tonga · 199 days ago · 498 km deep · 22 km away
  8. 4.0Fiji region · 199 days ago · 590 km deep · 92 km away
  9. 4.1281 km WNW of Houma, Tonga · 199 days ago · 553 km deep · 39 km away
  10. 4.2282 km WNW of Houma, Tonga · 201 days ago · 541 km deep · 63 km away
  11. 4.3256 km WNW of Houma, Tonga · 204 days ago · 518 km deep · 36 km away
  12. 4.4263 km WNW of Houma, Tonga · 208 days ago · 529 km deep · 54 km away
  13. 4.7259 km WNW of Houma, Tonga · 208 days ago · 552 km deep · 58 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000s920. Read Sun, Oct 4, 2026, 8:17 AM UTC.