Mount Merapi on the border of Yogyakarta and Magelang Regency emitted pyroclastic flows at 04:13 p.m. local time on Tuesday, .

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

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 ...

MANILA, Philippines — The Mayon Volcano is exhibiting signs of increasing unrest, with bright red magma and glowing pyroclastic density currents called "uson" continuing to stream from its summit as ...