The area in Indonesia that have been affected by a tsunami, is seismically very acief. There are many earthquakes and volcanic eruptions.
The deadly tsunami was probably caused by a submarine landslide from the volcano, Anak Krakatau . Which is located between Java and Sumatra in. The island is quite new: it was only in 1927. The island is formed by the magma of a submarine volcano.
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Anak Krakatau means Child of Krakatau . At the same place earlier, namely, the volcano Krakatoa. That erupted in August 1883, one of the biggest eruptions in modern times . That’s what happened with four explosions were so violent that the volcano itself destroyed. The blast was nearly 5,000 kilometres away, off the coast of Africa, yet to hear. It is one of the loudest sounds ever recorded. The explosion had a force of 200 megatons, or to 13,000 times as large as the atomic bomb dropped on Hiroshima in 1945, the shockwave went three times around the world. the
the landslides also resulted in huge tsunamis. The place Merak on Java was destroyed by a tidal wave of 46 meters high . Krakatoa fell under Dutch control, just like the rest of the Dutch east Indies. The Dutch authorities estimate that there are 36.000 deaths.
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But that was the disaster. Because the puffs of the Krakatau, full of sulphur dioxide, but the entire world. That kept sunlight. Average temperatures on the other side of the world dropped by more than a degree. The air was for many years a darker than usual and it was only in 1888 had the planet recovered.
On boxing day 2004, Indonesia also hit by a tsunami. That was created by an earthquake with a strength of 9.1, one of the largest quakes of all time. The epicentre was west of Sumatra, about 1500 kilometers of Anak Krakatau. The tidal waves went the whole Indian Ocean, and there died more than a quarter of a million people, of whom more than half in Indonesia. Among the dead were 36 Dutch.
