The legendary annihilation in 1883 of the volcano-island of Krakatoa -- the name has since become a byword for a cataclysmic disaster -- was followed by an immense tsunami that killed nearly forty thousand people. Beyond the purely physical horrors of an event that has only very recently been properly understood, the eruption changed the world in more ways than could possibly be imagined. Dust …
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Volcanoes and earthquakes are natural disasters that can cause great damage and loss of life. Both volcanoes and earthquakes are caused by the heat and energy released from the Earth's core. The severe movement of tectonic plates during an earthquake can trigger volcanic eruptions; whereas the movement of magma within a volcano can trigger earthquakes. These sudden movements can generate signif…