Hunga-Tonga-Hunga Ha’apai 

  • Hunga Tonga–Hunga Haʻapai is a submarine volcano in the South Pacific located about 30 km south of the submarine volcano of Fonuafoʻou and 65 km north of Tongatapu, Tonga’s main island. 
  • It lies along the Pacific ‘Ring of fire’, and is just over 60 kilometres from the island nation of Tonga. 
  • The Pacific ‘Ring of Fire’ or Pacific rim, or the Circum-Pacific Belt, is an area along the Pacific Ocean that is characterised by active volcanoes and frequent earthquakes. It is home to about 75 per cent of the world’s volcanoes – more than 450 volcanoes. Also, about 90 per cent of the world’s earthquakes occur here. 

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