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Tonga Cable System
Tonga Cable System is a submarine fiber-optic cable system connecting Tonga with Fiji, where it connects to other international networks. It is long and was activated in 2013. It has cable landing points at Sopu, a suburb of Nukuʻalofa in Tonga, and Suva, Fiji. The project was funded by Asian Development Bank and the World Bank. An extension of the cable to Haʻapai and Vavaʻu Vavau is an island group, consisting of one large island ( ʻUtu Vavaʻu) and 40 smaller ones, in Tonga. It is part of Vavaʻu District, which includes several other individual islands. According to tradition, the Maui god created both Tongata ... was commissioned in April 2018. History On January 20, 2019, the cable broke and disrupted Internet services to Tonga. Satellite communications were used as a backup. Three years later, the 2022 Hunga Tonga–Hunga Ha'apai eruption disrupted it again. A specialist repair ship from SubCom could take days to get to the fault site, as it was deployed from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submarine Communications Cable
A submarine communications cable is a cable laid on the sea bed between land-based stations to carry telecommunication signals across stretches of ocean and sea. The first submarine communications cables laid beginning in the 1850s carried telegraphy traffic, establishing the first instant telecommunications links between continents, such as the first transatlantic telegraph cable which became operational on 16 August 1858. Subsequent generations of cables carried telephone traffic, then data communications traffic. Modern cables use optical fibre technology to carry digital data, which includes telephone, Internet and private data traffic. Modern cables are typically about in diameter and weigh around for the deep-sea sections which comprise the majority of the run, although larger and heavier cables are used for shallow-water sections near shore. Submarine cables first connected all the world's continents (except Antarctica) when Java was connected to Darwin, Northern Terr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fiber-optic Cable
A fiber-optic cable, also known as an optical-fiber cable, is an assembly similar to an electrical cable, but containing one or more optical fibers that are used to carry light. The optical fiber elements are typically individually coated with plastic layers and contained in a protective tube suitable for the environment where the cable is used. Different types of cable are used for different applications, for example, long distance telecommunication, or providing a high-speed data connection between different parts of a building. Design Optical fiber consists of a core and a cladding layer, selected for total internal reflection due to the difference in the refractive index between the two. In practical fibers, the cladding is usually coated with a layer of acrylate polymer or polyimide. This coating protects the fiber from damage but does not contribute to its optical waveguide properties. Individual coated fibers (or fibers formed into ribbons or bundles) then have a tough ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tonga
Tonga (, ; ), officially the Kingdom of Tonga ( to, Puleʻanga Fakatuʻi ʻo Tonga), is a Polynesian country and archipelago. The country has 171 islands – of which 45 are inhabited. Its total surface area is about , scattered over in the southern Pacific Ocean. As of 2021, according to Johnson's Tribune, Tonga has a population of 104,494, 70% of whom reside on the main island, Tongatapu. The country stretches approximately north-south. It is surrounded by Fiji and Wallis and Futuna (France) to the northwest; Samoa to the northeast; New Caledonia (France) and Vanuatu to the west; Niue (the nearest foreign territory) to the east; and Kermadec (New Zealand) to the southwest. Tonga is about from New Zealand's North Island. First inhabited roughly 2,500 years ago by the Lapita civilization, Tonga's Polynesian settlers gradually evolved a distinct and strong ethnic identity, language, and culture as the Tongan people. They were quick to establish a powerful footing acr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fiji
Fiji ( , ,; fj, Viti, ; Fiji Hindi: फ़िजी, ''Fijī''), officially the Republic of Fiji, is an island country in Melanesia, part of Oceania in the South Pacific Ocean. It lies about north-northeast of New Zealand. Fiji consists of an archipelago of more than 330 islands—of which about 110 are permanently inhabited—and more than 500 islets, amounting to a total land area of about . The most outlying island group is Ono-i-Lau. About 87% of the total population of live on the two major islands, Viti Levu and Vanua Levu. About three-quarters of Fijians live on Viti Levu's coasts: either in the capital city of Suva; or in smaller urban centres such as Nadi—where tourism is the major local industry; or in Lautoka, where the Sugarcane, sugar-cane industry is dominant. The interior of Viti Levu is sparsely inhabited because of its terrain. The majority of Fiji's islands were formed by Volcano, volcanic activity starting around 150 million years ago. Some geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cable Landing Point
A cable landing point is the location where a submarine or other underwater cable makes landfall. The term is most often used for the landfall points of submarine telecommunications cables and submarine power cables. The landing will either be direct (in the case of a point-to-point cable system) or via a branch from a main cable using a submarine branching unit. The branch can be several kilometres long. Selection criteria Cable landing points are usually carefully chosen to be in areas: # that have little marine traffic to minimise the risk of cables being damaged by ship anchors and trawler operations; # with gently sloping, sandy or silty sea-floors so that the cable can be buried to minimise the chance of damage; # without strong currents that would uncover buried cables and potentially move cables. Such locations are rare, and will usually be the shared landfall point for several cable systems. Associated facilities Frequently, there will be a nearby cable landing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nukuʻalofa
Nukualofa (; ) is the capital and largest city of Tonga. It is located on the north coast of the island of Tongatapu, in the country's southernmost island group. History First western records of Nukualofa On 10 June 1777, British captain James Cook wrote of his arrival at their anchorage place. His description of the place confirmed, with his map, that this was the bay of Nukualofa. Cook never used the name Nukualofa or any other spelling for the reports of this voyage, but he mentioned the island of Pangaimodoo ( Pangaimotu) which was to the east of his anchorage position. Captain Cook also wrote that he travelled by canoes to visit Mooa ( Mua) where Paulaho and other great men lived. The house that Paulaho provided was on the beach from the ship. Reference to his map shows that he must have landed and stayed in the Siesia area, the eastern part of modern Nukualofa. Cook also drafted the first map of the bay of Nukuʻalofa. The first written record for Nukuʻalofa is stat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suva
Suva () is the capital and largest city of Fiji. It is the home of the country's largest metropolitan area and serves as its major port. The city is located on the southeast coast of the island of Viti Levu, in Rewa Province, Central Division. In 1877, the capital of Fiji was moved to Suva from Levuka, the main European colonial settlement at the time, due to its restrictive geography and environs. The administration of the colony was transferred from Levuka to Suva in 1882. As of the 2017 census, the city of Suva had a population of 93,970, and Suva's metropolitan area, which includes its independent suburbs, had a population of 185,913. The combined urban population of Suva and the towns of Lami, Nasinu, and Nausori that border it was around 330,000: over a third of the nation's population. (This urban complex, excluding Lami, is also known as the Suva-Nausori corridor.) Suva is the political, economic, and cultural centre of Fiji. It is also the economic and cultural ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asian Development Bank
The Asian Development Bank (ADB) is a regional development bank established on 19 December 1966, which is headquartered in the Ortigas Center located in the city of Mandaluyong, Metro Manila, Philippines. The bank also maintains 31 field offices around the world to promote social and economic development in Asia. The bank admits the members of the United Nations Economic and Social Commission for Asia and the Pacific (UNESCAP, formerly the Economic Commission for Asia and the Far East or ECAFE) and non-regional developed countries. From 31 members at its establishment, ADB now has 68 members. The ADB was modeled closely on the World Bank, and has a similar weighted voting system where votes are distributed in proportion with members' capital subscriptions. ADB releases an annual report that summarizes its operations, budget and other materials for review by the public. The ADB-Japan Scholarship Program (ADB-JSP) enrolls about 300 students annually in academic institutions locate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Bank
The World Bank is an international financial institution that provides loans and grants to the governments of low- and middle-income countries for the purpose of pursuing capital projects. The World Bank is the collective name for the International Bank for Reconstruction and Development (IBRD) and International Development Association (IDA), two of five international organizations owned by the World Bank Group. It was established along with the International Monetary Fund at the 1944 Bretton Woods Conference. After a slow start, its first loan was to France in 1947. In the 1970s, it focused on loans to developing world countries, shifting away from that mission in the 1980s. For the last 30 years, it has included NGOs and environmental groups in its loan portfolio. Its loan strategy is influenced by the Sustainable Development Goals as well as environmental and social safeguards. , the World Bank is run by a president and 25 executive directors, as well as 29 various vice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haʻapai
Haʻapai is a group of islands, islets, reefs, and shoals in the central part of Tonga. It has a combined land area of . The Tongatapu island group lies to its south, and the Vavaʻu group lies to its north. Seventeen of the Haʻapai islands are inhabited. Their combined population is 5,419. The highest point in the Ha‘apai group, and in all of Tonga, is on Kao, which rises almost above sea level. The administrative capital village of Haʻapai District is Pangai, which is located on Lifuka. Geography Haʻapai comprises 51 islands that lie directly west of the Tonga Trench. They constitute a chain of both volcanic and coral islands, including Kao, the highest point in the kingdom, which stands high. Farther to the east are the coral islands, which are inhabited. The Haʻapai archipelago lies north of Tongatapu and south of Vavaʻu. Seventeen of the islands are inhabited, including the main islands of Lifuka and Foa. The two main villages in the archipelago are Pangai on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vavaʻu
Vavau is an island group, consisting of one large island ( ʻUtu Vavaʻu) and 40 smaller ones, in Tonga. It is part of Vavaʻu District, which includes several other individual islands. According to tradition, the Maui god created both Tongatapu and Vavau, but put a little more effort into the former. Vavau rises above sea level at Mount Talau. The capital is Neiafu, situated at the Port of Refuge (Puatalefusi or Lolo-a-Halaevalu). History Myths and legends In Polynesia, it is said that the islands were created by the god Maui, who reached into the bottom of the sea with his magic hook, caught something on it, and pulled it up to the sea surface, and it became the islands of Vavau. Recorded history Don Francisco Mourelle de la Rúa, commanding the Spanish frigate ''Princesa'', was the first European to come to Vavau, which he did on 4 March 1781. He charted Vavaʻu as ''Martín de Mayorga'', naming it after the man who was the Viceroy of New Spain at that time. Ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2022 Hunga Tonga–Hunga Ha'apai Eruption And Tsunami
On 20 December 2021, an eruption began on Hunga Tonga–Hunga Ha'apai, a submarine volcano in the Tongan archipelago in the southern Pacific Ocean. The eruption reached a very large and powerful climax nearly four weeks later, on 15 January 2022. Hunga Tonga–Hunga Haʻapai is north of Tongatapu, the country's main island, and is part of the highly active Tonga–Kermadec Islands volcanic arc, a subduction zone extending from New Zealand north-northeast to Fiji.Gupta, Alok K. ''Igneous Rocks'' Mumbai, India: Allied Publishers, 1998 The eruption caused tsunamis in Tonga, Fiji, American Samoa, Vanuatu, and along the Pacific rim, including damaging tsunamis in New Zealand, Japan, the United States, the Russian Far East, Chile, and Peru. At least four people were killed, some were injured, and some remain possibly missing in Tonga from tsunami waves up to high. Two people drowned in Peru when a wave struck the coast. Preliminary data indicate that the event was probably the la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
