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 ...

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 ...

Semeru volcano — the tallest volcano on Java at 3,676 meters — erupted on the afternoon of November 19, 2025, with pyroclastic flows racing at high speed more than 8.5 kilometers down its slopes, as ...

At least 330 people were evacuated on Thursday in Guatemala following an eruption of the Fuego volcano, located 35 km from the capital, according to the civil protection agency, which declared an ...

A plume of ash and gas rises from Mount Etna on the Italian island of Sicily on Monday. The eruption also featured lava fountains and a pyroclastic flow. Salvatore Allegra / Anadolu via Getty Images ...