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 ...

Four decades on, the gap between well-monitored volcanoes and unmonitored ones still shapes who lives and dies. The new ...

Tiny crystals suggest extinct volcanoes could still grow underground, a finding that could reshape how scientists assess ...

We know very little about the processes that lead to a reeruption of supervolcanoes such as the mostly underwater Kikai caldera in Japan (pictured) and are therefore ill-equipped to make predictions.