Tonga earthquakes

M4.1 earthquake 266 km WNW of Haveluloto, Tonga

A magnitude 4.1 earthquake struck 266 km WNW of Haveluloto, Tonga on Sun, Apr 22, 2018, 4:11 PM GMT+13 (03:11 UTC), 402 km (250 mi) below the surface.

A larger quake followed: M5.4 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
4.1 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2018-04-22 03:11:04 UTC
Depth
402.0 km (249.8 mi), deep
Epicenter
20.499° S, 177.678° 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 15.5 km horizontally, 8.6 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
130°
Stations used
31

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 26 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 4.3241 km WNW of Haveluloto, Tonga · 3083 days ago · 527 km deep · 26 km away
  2. 4.1260 km WNW of Haveluloto, Tonga · 3083 days ago · 476 km deep · 45 km away
  3. 4.4Fiji region · 3083 days ago · 578 km deep · 90 km away
  4. 4.6196 km WNW of Haveluloto, Tonga · 3081 days ago · 304 km deep · 95 km away
  5. 4.0270 km W of Haveluloto, Tonga · 3081 days ago · 441 km deep · 48 km away
  6. 4.5261 km WNW of Haveluloto, Tonga · 3077 days ago · 490 km deep · 21 km away
  7. 4.0295 km W of Haveluloto, Tonga · 3070 days ago · 464 km deep · 66 km away
  8. 4.7Fiji region · 3066 days ago · 575 km deep · 86 km away
  9. 4.1Fiji region · 3064 days ago · 617 km deep · 94 km away
  10. 4.3280 km WNW of Haveluloto, Tonga · 3063 days ago · 516 km deep · 53 km away
  11. 4.7Fiji region · 3063 days ago · 524 km deep · 51 km away
  12. 4.5Fiji region · 3062 days ago · 526 km deep · 74 km away
  13. 4.2Fiji region · 3059 days ago · 537 km deep · 63 km away
  14. 4.3Fiji region · 3056 days ago · 525 km deep · 50 km away
  15. 4.3292 km WNW of Haveluloto, Tonga · 3053 days ago · 497 km deep · 53 km away
  16. 4.5268 km W of Haveluloto, Tonga · 3053 days ago · 482 km deep · 40 km away
  17. 5.4Fiji region · 3052 days ago · 473 km deep · 99 km away
  18. 4.4272 km WNW of Haveluloto, Tonga · 3049 days ago · 547 km deep · 53 km away
  19. 4.8274 km WNW of Haveluloto, Tonga · 3043 days ago · 516 km deep · 8 km away
  20. 4.4Fiji region · 3042 days ago · 580 km deep · 66 km away
  21. 4.2276 km WNW of Haveluloto, Tonga · 3036 days ago · 535 km deep · 55 km away
  22. 4.3Fiji region · 3035 days ago · 553 km deep · 63 km away
  23. 4.2Fiji region · 3032 days ago · 572 km deep · 65 km away
  24. 4.4286 km WNW of Haveluloto, Tonga · 3029 days ago · 531 km deep · 24 km away
  25. 4.0297 km WNW of Haveluloto, Tonga · 3027 days ago · 428 km deep · 41 km away
  26. 4.2267 km WNW of Haveluloto, Tonga · 3025 days ago · 526 km deep · 47 km away

Before

  1. 4.3Fiji region · 3090 days ago · 518 km deep · 35 km away
  2. 4.4Fiji region · 3091 days ago · 546 km deep · 43 km away
  3. 4.5261 km W of Haveluloto, Tonga · 3093 days ago · 503 km deep · 35 km away
  4. 4.5284 km WNW of Haveluloto, Tonga · 3102 days ago · 544 km deep · 69 km away
  5. 4.6Fiji region · 3103 days ago · 549 km deep · 69 km away
  6. 4.4270 km WNW of Haveluloto, Tonga · 3105 days ago · 514 km deep · 24 km away
  7. 4.6Fiji region · 3112 days ago · 523 km deep · 36 km away
  8. 4.5292 km WNW of Haveluloto, Tonga · 3112 days ago · 501 km deep · 67 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000dspt. Read Thu, Oct 1, 2026, 5:15 AM UTC.