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Different Stages of Volcanic Eruption  

A volcano can be defined as an opening in Earth’s surface through which magma and different gases rise and then eventually result in an eruption. Volcanic eruption is one of the most dangerous natural disasters. This volcanic vent sends out lava, ash and sometimes volcanic bombs. The slowly moving lava can cause a lot of damage to property and human life as well.

An earthquake results in creating little vents. These vents allow the formation of magma. This magma is pushed up towards the crust of the volcano. When it reaches a certain level at the boiling point, the eruption is started. The strength of different volcanic eruptions varies from one to another. Some eruptions are passive and not dangerous but some of them are very much explosive and destructive.

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It is not necessary that each and every volcano will erupt from its peak. They can have eruptions at any part. These eruptions happen deep down inside the earth and mostly caused by shifting in the tectonic plates.

Stages of Volcanic Eruption: –

The entire process of volcanic eruption can be divided in three major steps: –

  • Magmatic eruption: – In this stage, gas is released under decompression.
  • Phreatomagmatic eruption: – In this stage of eruption, thermal contraction comes from water.
  • Phreatic eruption: – It is the last stage in which, steam starts to erupt.



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Declan, Tobin. " Different Stages of a Volcanic Eruption for Kids ." Easy Science for Kids, Sep 2018. Web. 24 Sep 2018. < >.

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Tobin, Declan. (2018). Different Stages of a Volcanic Eruption for Kids. Easy Science for Kids. Retrieved from

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