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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]
The 2009 Tonga undersea volcanic eruption began on 16 March 2009, [5] near the island of Hunga Tonga, approximately 62 kilometres (39 mi) from the Tongan capital of Nukuʻalofa. [6] The volcano is in a highly active volcanic region that represents a portion of the Pacific Ring of Fire .
Hunga Tonga–Hunga Haʻapai is 65 kilometres (40 mi) north of Tongatapu, the country's main island, [8] and is part of the highly active Tonga–Kermadec Islands volcanic arc, a subduction zone extending from New Zealand to Fiji. [9] [10] On the Volcanic Explosivity Index scale, the eruption was rated at least a VEI-5.
A formidable underwater volcano created the twin islands of Hunga Tonga and Hunga Ha‘apai. Then, on Jan. 15, that volcano destroyed them. Located in the South Pacific, the eruption was one of ...
Plumes of ash filled the sky as the volcano rumbled to life for the first time in 19 years. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways ...
An underwater volcano erupted on January 15 near the Pacific island of Tonga. Scientists are beginning to understand just how big it was.
Map of world's major seamounts. A list of active and extinct submarine volcanoes and seamounts located under the world's oceans. There are estimated to be 40,000 to 55,000 seamounts in the global oceans. [1] Almost all are not well-mapped and many may not have been identified at all. Most are unnamed and unexplored.
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.