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Sunday, June 26, 2011

Historical Significance Of Krakatoa best known eruption of Krakatoa led to a series of massive explosions on 26-27 August 1883, which was one of the most violent volcanic events in modern history and printmaking.
With a volcanic explosion limit Index (VEI) of 6, was the trigger equivalent of 200 megatons of TNT (840 PJ) - about 13,000 times the yield nuclear bomb Little Boy (13 to 16 kt) that destroyed Hiroshima, Japan during the Second World War and four times the yield of the Tsar Bomba (50 Mt), the most powerful nuclear bomb ever exploded. 1883 eruption of about 21 km3 (5.0 cu mi) of rock, ash and pumice.
Revolutionary explosion was clearly heard as far away as Perth in Western Australia, about 1930 miles (3110 km) away and the island of Rodrigues near Mauritius, about 3,000 miles (5,000 km) away.
Near Krakatoa, according to official records, 165 villages and towns were destroyed and 132 damaged, at least 21,007 (official rate) people have died and thousands were injured by 'eruption, most of the tsunami that followed the explosion. Eruption destroyed two-thirds of the island of Krakatoa.
The eruptions of the volcano since 1927 have built a new island in the same location, called Anak Krakatau (Indonesia is the "son of Krakatoa"). The island currently has a radius of 2 km (1.2 miles) and a peak at about 300 meters (980 feet) above sea level, more than 5 meters (16 feet) each year.


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