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 ...

For more than 100,000 years, a Greek volcano lay silent. But deep underground, it was still growing. Tiny zircon crystals show magma was quietly brewing between eruptions, researchers report April 22 ...

The magma reservoir of the largest volcanic eruption of the Holocene is refilling. This Kobe University insight on the Kikai caldera in Japan allows us to understand giant caldera volcanoes like ...