VOLCANO ERUPTIONS

They're really really bad.

Types of Volcanos
Cinder Cone
Composite Volcanos
Shield Volcanos
Lava Domes

Volcanos have been around since the very begining of the Earth, and are constantly erupting and forming, and forming new islands and all sorts of things. Hawaii, a US state in the Pacific ocean, was formed millions of years ago by an underwater volcanic eruption. When the wolcano erupted, the magma coming out of it cooled against the water, and dried, making stone. it kept building up, more and more, untill eventually, and island was formed. Hawaii remains to be the volcano is once was, and still has the chance of potentially erupting. I would say it's on thin ice, but that'd be stupid, cause it's a volcano. Magma is stored all over the Earth, beneath the Earth's crust and all over the mantle. When a pocket of lava is squeezed by the moving of tectonic plates, the magma, or melted rock, is forced up to the surface and dries there, forming the mound of rock that is commonly associated with the steriotypical look of a "volcano". While some volcanos still have magma underneath, connecting to the mouth of it, staying active, some lose their heat and dry up, becoming dead. Some, who have magma underneath, but don't have a very good chance of erupting any time soon are classified as dormant.