This series documents how active volcanoes and moving tectonic plates are responsible for Earth's geography and disasters. Sometimes these eruptions form land masses, such as islands formed by ancient underwater volcanoes in the South Pacific or the Alps that were created when Africa slammed into Eurasia. But other times, these eruptions are devastating to people and nature. While the effects of the Mt. Vesuvius eruption in 79 AD are well known, volcanoes have other, less publicized, impacts on nature and people, such as the Himalayan sediment streaming South that is responsible for landslides that threatens to wipe out villages in Nepal.