Mount Semeru erupted on Wednesday with pyroclastic flows and seismic tremors. Authorities maintain a Level III Alert.

After an eruption, DIY cushions of gas help searing torrents of gas, ash, and rock spread miles from their source within a matter of minutes. Pyroclastic flows contain a deadly combination of hot rock ...

At least 62 people were reported killed when Guatemala’s Volcan de Fuego erupted on Sunday, June 3, sending plumes of rock, gas, and ash over nearby villages, as well as a fast-moving and destructive ...

Avalanches of ash, gas and rock that cascade downhill during volcanic eruptions may be even more dangerous than scientists had realized. Pulses of high pressure form within these slides, known as ...

A spectacular display of lava and pyroclastic flow was seen in Stromboli on the afternoon of Dec 4. Just after 2pm a lava overflow and intense explosive activity started from the north crater, before ...

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 ...

TEMPO.CO, Jakarta - The Geological Agency has set the volcanic activity status of Mount Semeru in Lumajang, East Java, to level IV or Warning since Wednesday afternoon, November 19, 2025, at 5:00 PM ...