Pyroclastic density currents (PDCs) represent some of the most formidable and complex volcanic phenomena, characterised by a turbulent mixture of solid particles and gases that surge down slopes at ...

A powerful volcanic eruption in Indonesia sent residents fleeing as Mount Semeru released a towering ash column and pyroclastic flow - a fast-moving, superheated cloud of dense volcanic gas, ash and ...

Scientists compare volcanic cones on Earth and Mars to explain how gas-rich magma forms scoria cones. Spacecraft observations and Earth analog sites provide evidence of similar eruptive processes.

MILAN, Italy — Mt. Etna, the volcano that towers over eastern Sicily, has again captivated the world with a spectacular show, spewing smoke high into the sky. But the defining event of Monday’s ...

Aerial view of Crater Lake in Oregon, a collapse caldera formed by one of the largest volcanic eruptions in the past 8,000 years. A detailed survey of the volcanic deposits found offshore Japan ...