Tonga

Hunga Tonga–Hunga Haʻapai

A volcano whose islands are only the visible rim Hunga Tonga–Hunga Haʻapai is not simply an island with a volcano on it. The name refers to a submarine volcanic system in the Kingdom of Tonga, where the small islands of Hunga Tonga and Hunga Haʻapai rise along the rim of a much larger undersea caldera. The Smithsonian Global Volcanism Program places the volcano in the Tofua segment of the Tonga–Kermadec arc, where the Pacific Plate…...