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Krakatau: Volcanic Island of Indonesia

Often called by its Portuguese name Krakatoa, Krakatau is a volcanic island in Indonesia located in Sunda Strait in the middle of Sumatra and Java. Krakatau Indonesia administratively belongs to the province of Lampung, and has been famous in history since the sixteenth century.

Anciently, it was projected to have had a height of two-thousand meters and a nine-kilometer radius but after the pre-historic great eruption in 416, probably forming the seven-kilometer-wide caldera, as well as its ancestral volcanic remnants being preserved in Lang Islands and Verlaten. Afterwards, three volcanoes were formed namely Danan, Perbuwatan, and Rakata, uniting to form the pre-1883 Krakatau Island.

Krakatau is the name used for the group of islands, including Rakata, which is the main island, and the Krakatau Volcano as whole. Krakatau Indonesia has suffered repeated and massive eruptions that have had disastrous results all through history. The second biggest known eruption happened on the 26th and 27th of August 1883, culminated through a series of enormous explosions.

The 1883 volcanic eruption of Krakatau Indonesia ejected over twenty-five cubic kilometers of ash, pumice, and rock, as well as generating the loudest noise ever reported in history; the cataclysmic bang was markedly heard as far as Perth in Australia, and the an island near Mauritius called Rodrigues. The caldera collapsed destroying Perbuwatan and Danan volcanoes and leaving only a relic of Rakata Volcano; it also claimed the lives of over thirty-six-thousand people, the majority of fatalities an outcome of the devastating tsunamis which swept neighboring coastlines of java and Sumatra.

Before the eruption in 1883, Krakatau was made up of three main islands, namely Verlaten now called Sertung, Lang now called Rakata or Panjang, and Krakatau itself. Due to the massive amount of material deposit by the volcanic eruption, the surrounding floor of the ocean was considerably altered, largely filling the thirty to forty-meter deep basin around Krakatau with ignimbrite. Lang and Verlaten’s land masses were also increased, and volcanic ash has become a great part of the island’s geological composition.

After resting for forty-four years, on December 1927, another volcanic island appeared and was named Anak Krakatau (child of Krakatau). Today, Krakatau Indonesia continues to be disturbed with occasional earthquakes, including eruptive episodes that started in 1994 and reports of Anak Krakatau having an increased volcanic activity that had flows of fresh lava which added to the area of the island in 2005.

The islands of Krakatau Indonesia still continues to be a main case study of founder populations and island biogeography, as well as being carefully watched to prevent future devastating and life-claiming disasters.

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Etymology

The first mention of Krakatoa, Indonesia in the West can be cited on the map by Lucas Janszoon Waghenaer. He labeled the district as “Pulo Carcata” where aside from the native spelling, the one in Portuguese is generally accepted. The real origin of the island’s name is not totally clear which according to historians, can be the result of a blunder typographically made in a source from Britain that reported the volcano’s eruption in August 26- 27, 1883.

There are three theories closely connected to Krakatoa, Indonesia. First is from Sanskrit “karkataka”, “karkata” or “karka” that means “crab” or “lobster.” Second is the onomatopoeia that renders the noise mimicked by the white parrots that once inhabited the district. Third is from Malay “kelakatu” that means “white- winged- ant.” There is also a very famous account about the island which is the aftermath of a linguistic error. It says that when a captain asked a native about his whereabouts, the latter answered, “kaga- tau” where in Betawinese signifies a slang phrase of “I do not know.”

Geography

Right before the huge eruption in August 26- 27, 1883, Krakatoa, Indonesia was comprised of main lands such as Lang and Verlatan. Currently, Lang is called Panjang while Verlatan is dubbed as Sertung. There was also an islet that was once covered with trees identified as Poolsche Hoed or Polish Hat since apparently, it resembles that one from the coastline. There were also igneous cones that run from north to south: Danan was 445 meters, Perboewatan was 122 meters and Rakata was 823 meters.

On another note, David Keys together with his other colleagues believed that the gigantic eruption in Krakatoa, Indonesia on 535 AD was due to the change of global conditions. In the book he authored entitled “Catastrophe: An Investigation into the Origins of Modern Civilization,” he touched on what he believed to be a “radical effect.” Also, there were recent studies that revealed an explosion that generated the main lands of Lang and Verlatan. However, the findings have been refuted.

Amidst the many talks about the old chronicles of Krakatoa, Indonesia, the more reason there is for you to pay a visit and discover for yourself the contemporary modifications in the district.

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