The latest eruption of Stromboli was a deadly reminder that Italy is one of the few countries in Europe with active volcanoes. Here's where you'll find them. Italy spans two tectonic plates: the Eurasian Plate and the African Plate, which meet between Sicily and the mainland.

At the boundary between the two, one is forced under the other and sinks into the Earth's hot mantle, the water within it being squeezed out at high pressure and helping to form magma deep underground that forces its way to the surface and bursts through in the form of a volcano.