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Anak Krakatoa, which means "Son of Krakatoa" in Indonesian, has been particularly active since last June. the experts, Anak Krakatoa would have been created around 1928 in the boiler of the legendary Krakatoa, which would have caused a catastrophic episode in 1883.
Anak Krakatoa began his life under water, until the 39th. appearance of its crater, around 1928. It became a small volcanic island, whose crater now reaches an altitude of 300 meters above sea level.
Since its birth, Anak Krakatoa is "in a state of eruptive activity semiperpetente" and develops with eruptions that occur produce every two or three years, said volcanologist Ray Cas from Monash University, Australia. "Most eruptions are relatively small-scale explosive eruptions."
The episode of this Saturday seems to have been a relatively unimportant explosive eruption, said the specialist, but could have been triggered or coincide with an underwater event such as a landslide tremor from land or land, which caused the fatal tsunami.
Although no one lives on this island, the volcano is a popular destination among tourists and an important object of study for volcanologists. It is part of the Ujung Kulo National Park, a UNESCO World Heritage Site for "its natural beauty and its very diverse flora and fauna, reflecting a permanent evolution of geological processes".
When Krakatoa broke up, on August 27, 1883, launched ashes over 20 kilometers in altitude in a series of very powerful explosions, that could be heard in Australia and even 5,000 kilometers away, near Mauritius.
the large amount of ash thrown, the region remained in the dark for two days. In the year following the eruption, and because of the dust, sunrises and sunsets from around the world were spectacular.
The tsunami caused by this eruption killed more than 36,000 people and is considered one of the worst natural disasters in the world.
Indonesia, an archipelago of 17,000 islands with about 130 active volcanoes, is located in the Pacific Fire Circle, an area of strong seismic activity.
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