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Hunga Tonga and Hunga Haʻapai are the only subaerial parts of the volcano. Hunga Tonga is the eastern island, while Hunga Haʻapai is the western one. They are part of Tonga's Haʻapai group of islands, [15] an island arc formed at the convergent boundary where the Pacific Plate subducts under the Indo-Australian Plate. [6] [16] [17]
Map all coordinates using OpenStreetMap. ... GPX (secondary coordinates) This is a list of active and extinct volcanoes in Tonga. Name Elevation [1] Location Last ...
Tofua caldera. Tofua is a volcanic island in Tonga.Located in the Haʻapai island group, it is a steep-sided composite cone with a summit caldera.It is part of the highly active Kermadec-Tonga subduction zone and its associated volcanic arc, which extends from New Zealand north-northeast to Fiji, and is formed by the subduction of the Pacific Plate under the Indo-Australian Plate. [2]
Hunga Tonga–Hunga Haʻapai is 65 kilometres (40 mi) north of Tongatapu, the country's main island, [9] and is part of the highly active Tonga–Kermadec Islands volcanic arc, a subduction zone extending from New Zealand to Fiji. [10] [11] On the Volcanic Explosivity Index scale, the eruption was rated at least a VEI-5.
The Tonga–Kermadec Ridge is an oceanic ridge in the south-west Pacific Ocean underlying the Tonga–Kermadec island arc.It is a result of the most linear, fastest converging, and seismically active subduction boundary on Earth, the Kermadec–Tonga subduction zone, and consequently has the highest density of submarine volcanoes.
The explosion of the Hunga Tonga Hunga Ha’apai volcano was the latest in a series of spectacular eruptions. ... Location-tracking company Unacast tells Norway its data was hacked, broadcaster says.
It lies about 6 km (3.7 mi) north of Tofua island and reaches 1,030 m (3,379 ft) above sea level, the highest point in Tonga. The date of its last eruption is unknown. Although Kao does not display fresh-looking lava flows, it is likely very recent in origin due to the absence of deep gullies or high sea cliffs.
In December 2014 and January 2015, a volcanic island 1 km wide by 2 km long was created adjacent to the island of Hunga Tonga–Hunga Ha'apai 65 kilometers northwest of Nuku'alofa. The volcanic eruption has built the new island to a height of 100 m composed of ash and large rock fragments. [4]