So, even though volcanoes can be very dangerous they play an important part ... along with gases and ash. Most volcanic eruptions are caused by tectonic plates moving towards each other.

So, even though volcanoes can be very dangerous they play an important part in the lives of those living nearby! Lava from an eruption. Most volcanic eruptions are caused by pieces of the Earth's ...

Photo: Prisoners sit in their cell as Homeland Security Secretary Kristi Noem tours the Terrorist Confinement Center in ...

A powerful eruption at Mount Kanlaon in the central Philippines sent ash 35 miles wide, triggering evacuations, school ...