About the Book
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 24. Chapters: Islands of Tonga, Volcanoes of Tonga, List of cities in Tonga, Hunga Tonga, Vaimalo, Niuafo'ou, 'Ata, Tafahi, Tofua, Niuatoputapu, Minerva Reefs, Tongatapu, List of volcanoes in Tonga, Eua, Vava u, Home Reef, Ha'afeva, Lifuka, Nomuka, Kao, Fonualei, Ha'apai, Late, Ha'ano, Taunga, Curacoa volcano, Metis Shoal, Foa, Nukupule, Mapu a Vaea, 'Uiha, Matuku, Fakahiku, Ofolanga, Hufangalupe, Pangaimotu, Lofanga, Niuas, Tahifehifa, Fotuha'a, Mo'unga'one, Limu, Fatumanongi, Hakauata, Meama, Luangahu, Luahoko, Taula, Sisia, 'O'ua, Lekeleka, Ovalau, Foua, Ovaka, Totokafonua, Totokamaka, Hakaufasi, Kotu Island, Putuputua, Luanamo, Nukulei, Uoleva, Teaupa, Tokulu, Tungua, Pepea, Uonukuhahake, Fetoa, Fonuaika, Niniva, Kito. Excerpt: Connection Timeout Hunga Tonga-Hunga Haapai is a volcano located about 30 km south-southeast of Fonuafoou (also known as Falcon Island), part of Tonga. The volcano is part of the highly active Tonga-Kermadec Islands volcanic arc, a subduction zone extending from New Zealand north-northeast to Fiji. The volcano lies about 100 km (62 miles) above a very active seismic zone. Magma is formed as two tectonic plates melt together under high heat and pressure, and the superheated rock is forced to the surface. NASA satellite image of Falcon Island (in red), showing Hunga Tonga-Hunga Haapai (in green)The volcano itself is a submarine volcano lying underwater between the two islands, which are the remnants of the western and northern rim of the volcano's caldera. The two islands (part of the Haapai group) are about 1.6 km (1 mile) apart, and each is about 2 km (1.2 miles) long and composed largely of andesite. Hunga Tonga reaches an elevation of 149 m (489 feet), while Hunga Haapai comes to only 128 m (420 feet) above sea level. Neither island is large: Hunga Tonga is roughly 39 hectares (0.15 square miles) an...