Tonga earthquakes

M4.0 earthquake 281 km WNW of Houma, Tonga

A magnitude 4.0 earthquake struck 281 km WNW of Houma, Tonga on Fri, Apr 17, 2026, 1:26 PM GMT+13 (00:26 UTC), 509 km (316 mi) below the surface.

A larger quake followed: M4.9 282 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
4.0 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2026-04-17 00:26:41 UTC
Depth
509.1 km (316.3 mi), deep
Epicenter
20.307° S, 177.849° 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 18.4 km horizontally, 9.1 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
167°
Stations used
26

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 16 in the 30 days before it.

After

  1. 4.1Fiji region · 162 days ago · 550 km deep · 60 km away
  2. 4.1266 km WNW of Houma, Tonga · 159 days ago · 533 km deep · 28 km away
  3. 4.5293 km W of Houma, Tonga · 155 days ago · 504 km deep · 63 km away
  4. 4.4267 km WNW of Houma, Tonga · 150 days ago · 478 km deep · 15 km away
  5. 4.1Fiji region · 146 days ago · 535 km deep · 46 km away
  6. 4.3Fiji region · 142 days ago · 597 km deep · 68 km away
  7. 4.4Fiji region · 136 days ago · 594 km deep · 96 km away
  8. 4.4Fiji region · 133 days ago · 581 km deep · 92 km away
  9. 4.4Fiji region · 133 days ago · 602 km deep · 94 km away
  10. 4.4Fiji region · 128 days ago · 557 km deep · 81 km away
  11. 4.6290 km WNW of Houma, Tonga · 125 days ago · 566 km deep · 65 km away
  12. 4.9282 km WNW of Houma, Tonga · 124 days ago · 545 km deep · 33 km away
  13. 4.2299 km WNW of Houma, Tonga · 121 days ago · 531 km deep · 22 km away
  14. 4.1Fiji region · 121 days ago · 589 km deep · 94 km away
  15. 4.7265 km WNW of Houma, Tonga · 116 days ago · 568 km deep · 47 km away
  16. 4.3278 km WNW of Houma, Tonga · 114 days ago · 515 km deep · 8 km away
  17. 4.4297 km NW of Houma, Tonga · 113 days ago · 548 km deep · 73 km away
  18. 4.0268 km WNW of Houma, Tonga · 110 days ago · 555 km deep · 29 km away

Before

  1. 4.6289 km WNW of Houma, Tonga · 171 days ago · 546 km deep · 21 km away
  2. 4.0272 km WNW of Houma, Tonga · 172 days ago · 550 km deep · 20 km away
  3. 4.9Fiji region · 177 days ago · 531 km deep · 48 km away
  4. 4.1Fiji region · 177 days ago · 567 km deep · 92 km away
  5. 4.2Fiji region · 179 days ago · 534 km deep · 32 km away
  6. 4.6247 km WNW of Houma, Tonga · 185 days ago · 544 km deep · 47 km away
  7. 4.7289 km WNW of Houma, Tonga · 186 days ago · 548 km deep · 38 km away
  8. 4.5291 km WNW of Houma, Tonga · 186 days ago · 520 km deep · 24 km away
  9. 4.2Fiji region · 187 days ago · 546 km deep · 41 km away
  10. 4.2Fiji region · 192 days ago · 617 km deep · 72 km away
  11. 4.1Fiji region · 193 days ago · 571 km deep · 99 km away
  12. 4.1Fiji region · 195 days ago · 517 km deep · 87 km away
  13. 4.3287 km WNW of Houma, Tonga · 196 days ago · 515 km deep · 14 km away
  14. 4.8Fiji region · 197 days ago · 575 km deep · 72 km away
  15. 4.4285 km WNW of Houma, Tonga · 198 days ago · 498 km deep · 44 km away
  16. 4.1281 km WNW of Houma, Tonga · 199 days ago · 553 km deep · 16 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000ssl7. Read Sat, Oct 3, 2026, 4:52 PM UTC.