Tonga earthquakes

M4.0 earthquake 270 km W of Haveluloto, Tonga

A magnitude 4.0 earthquake struck 270 km W of Haveluloto, Tonga on Thu, Apr 26, 2018, 5:43 AM GMT+13 (16:43 UTC), 441 km (274 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
4.0 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2018-04-25 16:43:14 UTC
Depth
440.8 km (273.9 mi), deep
Epicenter
20.914° S, 177.799° 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 12.8 km horizontally, 8.1 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
132°
Stations used
23

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 22 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 4.5261 km WNW of Haveluloto, Tonga · 3080 days ago · 490 km deep · 69 km away
  2. 4.1Fiji region · 3076 days ago · 556 km deep · 94 km away
  3. 4.0295 km W of Haveluloto, Tonga · 3073 days ago · 464 km deep · 27 km away
  4. 4.7Fiji region · 3065 days ago · 524 km deep · 40 km away
  5. 4.5Fiji region · 3064 days ago · 526 km deep · 49 km away
  6. 4.3Fiji region · 3058 days ago · 538 km deep · 85 km away
  7. 4.3Fiji region · 3058 days ago · 525 km deep · 55 km away
  8. 4.3292 km WNW of Haveluloto, Tonga · 3056 days ago · 497 km deep · 99 km away
  9. 4.5268 km W of Haveluloto, Tonga · 3056 days ago · 482 km deep · 8 km away
  10. 5.4Fiji region · 3054 days ago · 473 km deep · 54 km away
  11. 4.1Fiji region · 3050 days ago · 577 km deep · 78 km away
  12. 4.8274 km WNW of Haveluloto, Tonga · 3045 days ago · 516 km deep · 48 km away
  13. 4.4Fiji region · 3044 days ago · 580 km deep · 54 km away
  14. 4.3Fiji region · 3038 days ago · 553 km deep · 66 km away
  15. 4.3Fiji region · 3037 days ago · 555 km deep · 94 km away
  16. 4.2Fiji region · 3035 days ago · 572 km deep · 84 km away
  17. 4.4286 km WNW of Haveluloto, Tonga · 3032 days ago · 531 km deep · 64 km away
  18. 4.0297 km WNW of Haveluloto, Tonga · 3030 days ago · 428 km deep · 82 km away
  19. 4.2267 km WNW of Haveluloto, Tonga · 3028 days ago · 526 km deep · 95 km away
  20. 4.3Fiji region · 3027 days ago · 576 km deep · 76 km away
  21. 4.3268 km WNW of Haveluloto, Tonga · 3023 days ago · 544 km deep · 94 km away
  22. 4.2268 km WNW of Haveluloto, Tonga · 3023 days ago · 497 km deep · 33 km away

Before

  1. 4.4Fiji region · 3085 days ago · 578 km deep · 82 km away
  2. 4.1260 km WNW of Haveluloto, Tonga · 3085 days ago · 476 km deep · 92 km away
  3. 4.3241 km WNW of Haveluloto, Tonga · 3086 days ago · 527 km deep · 60 km away
  4. 4.1266 km WNW of Haveluloto, Tonga · 3087 days ago · 402 km deep · 48 km away
  5. 4.3Fiji region · 3092 days ago · 518 km deep · 53 km away
  6. 4.4Fiji region · 3093 days ago · 546 km deep · 68 km away
  7. 4.5261 km W of Haveluloto, Tonga · 3095 days ago · 503 km deep · 15 km away
  8. 4.6Fiji region · 3106 days ago · 549 km deep · 63 km away
  9. 4.4270 km WNW of Haveluloto, Tonga · 3107 days ago · 514 km deep · 72 km away
  10. 4.6Fiji region · 3109 days ago · 456 km deep · 63 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000dw08. Read Sat, Oct 3, 2026, 7:09 PM UTC.