Tonga earthquakes

M4.7 earthquake 128 km ENE of ‘Ohonua, Tonga

A magnitude 4.7 earthquake struck 128 km ENE of ‘Ohonua, Tonga on Wed, Jun 21, 2017, 12:16 AM GMT+13 (11:16 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.7 119 km ESE of Pangai, 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
4.7 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2017-06-20 11:16:58 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
21.018° S, 173.760° 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 10.8 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.12
Depth from
Operator assigned
Station coverage gap
87°
Stations used
28

Nearest places

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

Nearby

Within 100 km, magnitude 1.7 and up: 14 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 4.6112 km SE of Pangai, Tonga · 3385 days ago · 10 km deep · 51 km away
  2. 4.279 km SE of Pangai, Tonga · 3384 days ago · 35 km deep · 70 km away
  3. 4.9129 km E of ‘Ohonua, Tonga · 3382 days ago · 10 km deep · 26 km away
  4. 5.0123 km E of ‘Ohonua, Tonga · 3382 days ago · 10 km deep · 53 km away
  5. 4.4132 km ESE of Pangai, Tonga · 3380 days ago · 35 km deep · 77 km away
  6. 5.176 km ENE of Kolonga, Tonga · 3377 days ago · 35 km deep · 66 km away
  7. 5.6112 km ESE of Pangai, Tonga · 3366 days ago · 16 km deep · 77 km away
  8. 5.7119 km ESE of Pangai, Tonga · 3366 days ago · 7 km deep · 82 km away
  9. 4.9101 km ENE of ‘Ohonua, Tonga · 3363 days ago · 10 km deep · 44 km away
  10. 4.681 km E of ‘Ohonua, Tonga · 3362 days ago · 10 km deep · 49 km away
  11. 4.493 km ESE of Pangai, Tonga · 3361 days ago · 10 km deep · 92 km away
  12. 4.787 km SE of Pangai, Tonga · 3359 days ago · 10 km deep · 75 km away
  13. 4.5116 km SE of Pangai, Tonga · 3350 days ago · 10 km deep · 61 km away
  14. 4.9Tonga · 3337 days ago · 10 km deep · 42 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20009pbm. Read Sat, Oct 3, 2026, 6:08 PM UTC.