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 ...

A large formation of granite discovered below the lunar surface likely was formed from the cooling of molten lava that fed a volcano or volcanoes that erupted early in the Moon's history -- as long as ...

Roads have cracked, homes have been damaged and residents have been evacuated as a result of intense seismic activity on the Reykjanes Peninsula in southwest Iceland. A "concerning" series of ...

Along 1,100 kilometers, from Mexico to Costa Rica, lies the Central American volcanic arc, where the variety of magma types make for a geological paradise. By Pablo Fonseca Q. / Knowable Magazine ...

A powerful swarm of earthquakes in January suggested one of Iceland’s giant “ice volcanoes” may be awakening after a decade of slumber. In the months that followed, more earthquakes have rocked the ...

Ben Mather works for The University of Sydney, supported by funds from the Australian Research Council. Dietmar Müller receives funding from the Australian Research Council, the AuScope National ...