Most volcanoes form at the boundaries of Earth's tectonic plates, which are huge slabs of crust and upper mantle that fit together like puzzle pieces. Think of these plates as massive rafts floating ...

The recent eruption of Italy's Stromboli volcano has the potentially deadly natural phenomenon on everyone's radar as Hawaii's Mauna Loa is also displaying signs of increased seismic activity.

Some volcanoes can produce eruptions so powerful they release oceans of dust and toxic gases into the air, blocking out sunlight and changing a planet’s climate for decades. By studying the topography ...