Tinakula

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Tinakula
Steam and Ash Plume over Tinakula Island - NASA Earth Observatory.jpg
NASA picture of Tinakula spewing ashes (2012)
Highest point
Elevation 851 m (2,792 ft)
Coordinates 10°23′S165°48′E / 10.383°S 165.800°E / -10.383; 165.800
Geography
Location Solomon Islands
Geology
Mountain type Stratovolcano
Volcanic arc/belt Bougainville & Solomon Is.
Last eruption 2008 to 2012

Tinakula is a conical stratovolcano which forms an island north of Nendo in Temotu Province, Solomon Islands. It lies at the north end of the Santa Cruz Islands. It is about 3.5 kilometres (2 miles) wide and rises 851 metres (2,792 feet) above sea level, rising three to four kilometres (1.9 to 2.5 miles) from the sea floor. The volcano was first recorded in eruption in 1595 when Álvaro de Mendaña sailed past it.

Stratovolcano Tall, conical volcano built up by many layers of hardened lava and other ejecta

A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava, tephra, pumice and ash. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and periodic intervals of explosive eruptions and effusive eruptions, although some have collapsed summit craters called calderas. The lava flowing from stratovolcanoes typically cools and hardens before spreading far, due to high viscosity. The magma forming this lava is often felsic, having high-to-intermediate levels of silica, with lesser amounts of less-viscous mafic magma. Extensive felsic lava flows are uncommon, but have travelled as far as 15 km (9.3 mi).

Island Any piece of sub-continental land that is surrounded by water

An island or isle is any piece of sub-continental land that is surrounded by water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island in a river or a lake island may be called an eyot or ait, and a small island off the coast may be called a holm. A grouping of geographically or geologically related islands is called an archipelago, such as the Philippines.

Temotu Province Province in Lata, Solomon Islands

Temotu is the easternmost province of Solomon Islands. The province was formerly known as Santa Cruz Islands Province. It consists, essentially, of two chains of islands which run parallel to each other from the northwest to the southeast. Its area is 895 square kilometres.

Contents

History and occupation

The island is uninhabited. A population was eradicated when the volcano erupted around 1840 and pyroclastic flows swept all sides of the island. In 1951, polynesians from Nukapu and Nupani settled on the island, which reached a peak population of 130, before it had to be evacuated with the 1971 eruption. The village of Temateneni was on the southeast coast. In the late 1980s, two families (fewer than 10 people) from Nupani made another attempt at settlement.

Pyroclastic flow Fast-moving current of hot gas and volcanic matter that moves away from a volcano

A pyroclastic flow is a fast-moving current of hot gas and volcanic matter that moves away from a volcano about 100 km/h (62 mph) on average but is capable of reaching speeds up to 700 km/h (430 mph). The gases can reach temperatures of about 1,000 °C (1,830 °F).

Polynesians are an ethnolinguistic group of closely related peoples who are native to Polynesia, an expansive region of Oceania in the Pacific Ocean. They are part of the larger Austronesian ethnolinguistic group who trace their urheimat to Southeast Asia. They speak the Polynesian languages, a branch of the Oceanic subfamily of the Austronesian language family.

Nukapu island in Solomon Islands

Nukapu is one of the islands of the nation of Solomon Islands. It is in the Reef Islands group in Temotu Province; the easternmost province of the Solomons. The estimate terrain elevation above sea level is 15 metres.

The first recorded sighting by Europeans was by the Spanish expedition of Álvaro de Mendaña on 7 September 1595, when sailing towards Nendo Island where they stayed for several weeks. The volcano was described as lofty, with a well shaped peak, and a circumference of around 3 leagues. [1] [2]

Álvaro de Mendaña de Neira Spanish explorer

Álvaro de Mendaña y Neira was a Spanish navigator. Born in Congosto, in El Bierzo Region (León), he was the nephew of Lope García de Castro, viceroy of Peru. He is best known for the two voyages of discovery he led into the Pacific in 1567 and 1595 in search of Terra Australis.

Nendo Island the largest of the Santa Cruz Islands, in the Temotu province of the Solomon Islands

Nendo is the largest of the Santa Cruz Islands, located in the Temotu province of the Solomon Islands. The island is also known as Santa Cruz, Ndeni, Nitendi or Ndende. The name Santa Cruz was given to the island in 1595 by the Spanish navigator Álvaro de Mendaña, who started a colony there.

A league is a unit of length. It was common in Europe and Latin America, but is no longer an official unit in any nation. The word originally meant the distance a person could walk in an hour. Since the Middle Ages, many values have been specified in several countries.

There is a brief reference in the Melbourne Age newspaper of 10 November 1868 of the journey of the barque Tycoon, a ship carrying tea from Foo Chow Foo to Melbourne for the Joshua Brothers. The ship, it states, "... passed Volcano Island, one of the South (Santa) Cruz Group, on the 17th of October (1868). It was then in active operation, vomiting forth immense volumes of fire and smoke."

Melbourne City in Victoria, Australia

Melbourne is the capital and most populous city of the Australian state of Victoria, and the second most populous city in Australia and Oceania. Its name refers to an urban agglomeration of 9,992.5 km2 (3,858.1 sq mi), comprising a metropolitan area with 31 municipalities, and is also the common name for its city centre. The city occupies much of the coastline of Port Phillip bay and spreads into the hinterlands towards the Dandenong and Macedon ranges, Mornington Peninsula and Yarra Valley. It has a population of approximately 4.9 million, and its inhabitants are referred to as "Melburnians".

See also

References and sources

References
  1. Sharp, Andrew The discovery of the Pacific Islands Oxford, 1960, pp.52.
  2. Brand, Donald D. The Pacific Basin: A History of its Geographical Explorations The American Geographical Society, New York, 1967, p.136.
Sources
Global Volcanism Program American research program

The Smithsonian Institution's Global Volcanism Program (GVP) documents Earth's volcanoes and their eruptive history over the past 10,000 years. The GVP reports on current eruptions from around the world as well as maintaining a database repository on active volcanoes and their eruptions. In this way, a global context for the planet's active volcanism is presented. Smithsonian reporting on current volcanic activity dates back to 1968, with the Center for Short-Lived Phenomena (CSLP). The GVP is housed in the Department of Mineral Sciences, part of the National Museum of Natural History, on the National Mall in Washington, D.C.

Smithsonian Institution group of museums and research centers administered by the United States government

The Smithsonian Institution, founded on August 10, 1846 "for the increase and diffusion of knowledge," is a group of museums and research centers administered by the Government of the United States. The institution is named after its founding donor, British scientist James Smithson. Originally organized as the "United States National Museum," that name ceased to exist as an administrative entity in 1967.

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