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ANJU M.J.

Teacher | Posted | Education


when do volcanoes become dangerous?


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translator | Posted


 Deep inside the Earth it is very hot and some rocks slowly starts melting to form a thick flowing substance called magma. Magma is lighter than the rock around it, so it rises and collects in the rock crevices.When the magma find cracks on the rocks it pushes through those vents and cracks and rises to the top forcing a volcanic eruption.

Volcanic lava travels a long way around 20 miles radius from the area of activity and some can travel up to 100 miles radius.So the human population,animals  and property are all at risk if they are in the vicinity of these danger zone.


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Student | Posted


Volcanoes have a fascinating history that can teach us a lot about how to understand potential volcanic hazards. It is important to know the history of past eruptions so we can be better prepared for future eruptions. In the 1800s, vulcanologist Giuseppe Mercalli studied the eruptive history of Vesuvius, and in doing so created what is now known as an eruption column. He was able to predict which areas would be hit first and last based on how high the plume reached from deposits below. These plume height lines allowed residents of nearby towns to evacuate or take precautions.


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Content writer | Posted


A volcano looks like a mountain,where there is lot of activity below the surface.It can be defined as coming out of the molten lava, volcanic ash, and gases compressed inside through the opening of the earth's crust .This can happen in the form an explosion or a small eruption depending upon the amount of pressure built up inside the earths crust. Most of the volcanic activity are found to be underwater.
Volcano becomes dangerous if there is human settlement near the volcanic area. Volcanic eruptions throws up debris and dangerous gases causing bodily harm to humans and animals alike Gases and rock shoot up through the opening of the volcano and fill the air with lava fragments. Volcano eruptions can be dangerous if they are explosive and have been known to knock down forests.

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