It regularly emits plumes of gas and steam, and occasionally spits out rock (bombs) in strombolian eruptions. The volcano sits above a thin slice of crust, so molten rock more easily rises up from Earth’s interior. Erebus is still active, providing a rare bit of warmth in an extremely cold environment. Standing just off the coast of West Antarctica, Ross Island was built by the activity of four volcanoes.
Near Mount Erebus, the water is frozen but the rock is liquid.
