Tonga earthquakes

M4.5 earthquake 267 km WNW of Haveluloto, Tonga

A magnitude 4.5 earthquake struck 267 km WNW of Haveluloto, Tonga on Wed, Aug 8, 2018, 9:48 AM GMT+13 (20:48 UTC), 509 km (316 mi) below the surface.

A larger quake followed: M5.5 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
2018-08-07 20:48:05 UTC
Depth
508.6 km (316.0 mi), deep
Epicenter
20.278° S, 177.610° 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 13.8 km horizontally, 9.0 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
98°
Stations used
43

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. 4.3Fiji region · 2974 days ago · 599 km deep · 62 km away
  2. 4.5Fiji region · 2972 days ago · 543 km deep · 68 km away
  3. 4.5249 km W of Haveluloto, Tonga · 2972 days ago · 410 km deep · 86 km away
  4. 4.1298 km WNW of Haveluloto, Tonga · 2969 days ago · 521 km deep · 59 km away
  5. 4.2291 km WNW of Haveluloto, Tonga · 2968 days ago · 576 km deep · 46 km away
  6. 4.4Fiji region · 2967 days ago · 542 km deep · 66 km away
  7. 4.1264 km WNW of Haveluloto, Tonga · 2965 days ago · 531 km deep · 13 km away
  8. 4.3278 km WNW of Haveluloto, Tonga · 2961 days ago · 480 km deep · 51 km away
  9. 4.3Fiji region · 2956 days ago · 316 km deep · 43 km away
  10. 4.2262 km WNW of Haveluloto, Tonga · 2956 days ago · 508 km deep · 21 km away
  11. 4.4247 km WNW of Haveluloto, Tonga · 2955 days ago · 504 km deep · 29 km away
  12. 4.0Fiji region · 2953 days ago · 554 km deep · 56 km away
  13. 4.2Fiji region · 2952 days ago · 603 km deep · 59 km away
  14. 4.1276 km NW of Haveluloto, Tonga · 2952 days ago · 533 km deep · 62 km away
  15. 4.3Fiji region · 2950 days ago · 592 km deep · 89 km away
  16. 4.2Fiji region · 2946 days ago · 585 km deep · 76 km away
  17. 4.2Fiji region · 2944 days ago · 422 km deep · 59 km away
  18. 4.2256 km WNW of Haveluloto, Tonga · 2940 days ago · 524 km deep · 13 km away
  19. 4.1Fiji region · 2940 days ago · 430 km deep · 88 km away
  20. 4.5Fiji region · 2938 days ago · 368 km deep · 86 km away
  21. 5.5Fiji region · 2937 days ago · 516 km deep · 66 km away
  22. 4.4259 km WNW of Haveluloto, Tonga · 2929 days ago · 472 km deep · 11 km away
  23. 4.3274 km WNW of Haveluloto, Tonga · 2929 days ago · 514 km deep · 51 km away
  24. 4.6281 km WNW of Haveluloto, Tonga · 2923 days ago · 528 km deep · 46 km away
  25. 4.3291 km WNW of Haveluloto, Tonga · 2922 days ago · 494 km deep · 48 km away
  26. 4.1275 km WNW of Haveluloto, Tonga · 2920 days ago · 512 km deep · 29 km away

Before

  1. 4.2Fiji region · 2987 days ago · 657 km deep · 83 km away
  2. 4.4Fiji region · 2988 days ago · 460 km deep · 79 km away
  3. 4.1259 km WNW of Haveluloto, Tonga · 2991 days ago · 512 km deep · 13 km away
  4. 4.3Fiji region · 2992 days ago · 431 km deep · 50 km away
  5. 4.2266 km WNW of Haveluloto, Tonga · 2993 days ago · 545 km deep · 42 km away
  6. 4.4Fiji region · 2994 days ago · 585 km deep · 80 km away
  7. 4.3262 km WNW of Haveluloto, Tonga · 2999 days ago · 421 km deep · 29 km away
  8. 4.7214 km W of Haveluloto, Tonga · 3003 days ago · 322 km deep · 73 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000g6ec. Read Sat, Oct 3, 2026, 5:56 AM UTC.