Tonga earthquakes

M4.6 earthquake 293 km W of Haveluloto, Tonga

A magnitude 4.6 earthquake struck 293 km W of Haveluloto, Tonga on Tue, Apr 21, 2015, 9:26 AM GMT+13 (20:26 UTC), 536 km (333 mi) below the surface.

A larger quake followed: M6.1 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
4.6 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2015-04-20 20:26:13 UTC
Depth
535.8 km (332.9 mi), deep
Epicenter
20.819° S, 178.009° 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 12.4 km horizontally, 6.8 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
99°
Stations used
107

Nearest places

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

Nearby

Within 100 km, magnitude 1.6 and up: 32 in the 60 days after this one and 14 in the 30 days before it.

After

  1. 4.3Fiji region · 4178 days ago · 520 km deep · 66 km away
  2. 4.3Fiji region · 4178 days ago · 507 km deep · 97 km away
  3. 4.3287 km WNW of Haveluloto, Tonga · 4176 days ago · 490 km deep · 71 km away
  4. 6.1Fiji region · 4176 days ago · 581 km deep · 65 km away · felt by 1
  5. 4.5Fiji region · 4175 days ago · 562 km deep · 75 km away
  6. 4.4295 km W of Haveluloto, Tonga · 4173 days ago · 580 km deep · 32 km away
  7. 4.2294 km WNW of Haveluloto, Tonga · 4172 days ago · 537 km deep · 47 km away
  8. 4.2Fiji region · 4172 days ago · 600 km deep · 73 km away
  9. 4.4Fiji region · 4172 days ago · 583 km deep · 54 km away
  10. 4.0Fiji region · 4170 days ago · 594 km deep · 92 km away
  11. 5.0Fiji region · 4164 days ago · 601 km deep · 80 km away
  12. 4.5Fiji region · 4163 days ago · 556 km deep · 63 km away
  13. 4.7298 km W of Haveluloto, Tonga · 4161 days ago · 485 km deep · 31 km away
  14. 4.7Fiji region · 4160 days ago · 465 km deep · 50 km away
  15. 4.3Fiji region · 4157 days ago · 487 km deep · 38 km away
  16. 4.0Fiji region · 4156 days ago · 514 km deep · 38 km away
  17. 4.6Fiji region · 4156 days ago · 554 km deep · 98 km away
  18. 4.2Fiji region · 4151 days ago · 600 km deep · 54 km away
  19. 4.3284 km WNW of Haveluloto, Tonga · 4150 days ago · 564 km deep · 61 km away
  20. 4.2Fiji region · 4150 days ago · 606 km deep · 67 km away
  21. 4.2283 km WNW of Haveluloto, Tonga · 4148 days ago · 477 km deep · 96 km away
  22. 4.4Fiji region · 4148 days ago · 615 km deep · 82 km away
  23. 4.2287 km WNW of Haveluloto, Tonga · 4145 days ago · 520 km deep · 78 km away
  24. 4.2Fiji region · 4143 days ago · 538 km deep · 50 km away
  25. 4.2Fiji region · 4140 days ago · 583 km deep · 45 km away
  26. 4.4282 km WNW of Haveluloto, Tonga · 4136 days ago · 550 km deep · 71 km away
  27. 4.6Fiji region · 4134 days ago · 578 km deep · 70 km away
  28. 4.1267 km WNW of Haveluloto, Tonga · 4134 days ago · 492 km deep · 70 km away
  29. 4.3Fiji region · 4132 days ago · 572 km deep · 80 km away
  30. 4.4Fiji region · 4131 days ago · 592 km deep · 86 km away
  31. 4.0Fiji region · 4130 days ago · 453 km deep · 79 km away
  32. 4.4Fiji region · 4124 days ago · 547 km deep · 41 km away

Before

  1. 4.1Fiji region · 4188 days ago · 614 km deep · 58 km away
  2. 4.2Fiji region · 4191 days ago · 544 km deep · 81 km away
  3. 4.3Fiji region · 4192 days ago · 590 km deep · 81 km away
  4. 4.4Fiji region · 4192 days ago · 600 km deep · 66 km away
  5. 4.8Fiji region · 4199 days ago · 556 km deep · 68 km away
  6. 4.5282 km WNW of Haveluloto, Tonga · 4200 days ago · 525 km deep · 86 km away
  7. 4.5Fiji region · 4203 days ago · 561 km deep · 99 km away
  8. 4.2291 km WSW of Haveluloto, Tonga · 4205 days ago · 384 km deep · 99 km away
  9. 4.0273 km WNW of Haveluloto, Tonga · 4205 days ago · 555 km deep · 39 km away
  10. 4.4Fiji region · 4207 days ago · 601 km deep · 77 km away
  11. 4.1Fiji region · 4208 days ago · 556 km deep · 76 km away
  12. 4.1Fiji region · 4209 days ago · 561 km deep · 54 km away
  13. 4.3Fiji region · 4213 days ago · 594 km deep · 70 km away
  14. 4.5Fiji region · 4213 days ago · 569 km deep · 32 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us200029u4. Read Sat, Oct 3, 2026, 4:05 PM UTC.