Volcanoes form when magma from beneath the Earth’s crust breaks through the surface and erupts. As the erupting lava cools, new islands are created. Every several thousand years, a new island emerges from the sea. It is immediately exposed to winds and rain that erode its surface, but seeds and spores, blown by the wind, become embedded in the newly-formed soil. In a relatively short period of time, the barren rock surface is transformed into a lush tropical island. Today, lava flows from active volcanoes can provide information about underground magma flow, yielding information about potential future eruptions. In spite of scientific advances, however, there is not yet a method for predicting volcanic eruptions with complete accuracy.