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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 .
[21] [22] The government of Tonga issued a tsunami warning to residents, and waves of 30 cm (12 in) were observed in Nuku'alofa. [21] [23] Later in the afternoon, Tongan geologists near the volcano observed explosions and a 5-kilometre-wide (3.1 mi) ash column between 17:00 and 18:30 local time. [24]
2022: Hunga Tonga-Hunga Ha'apai, Tonga. On Jan. 1, an underwater volcano near Tonga exploded, sending a plume of ash and steam more than 12 miles into the atmosphere in an event that was powerful ...
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.
Government of Tonga, official 1962 land survey Siebert L, Simkin T (2002–present). Volcanoes of the World: an Illustrated Catalog of Holocene Volcanoes and their Eruptions .
The huge volcanic eruption in the Pacific island nation of Tonga on the weekend may not have been big enough to affect global climate but volcanic eruptions are an underestimated natural cause of ...