LEGAZPI CITY — A big volume of pyroclastic materials from the crater of Mount Mayon collapsed before twilight on Saturday, ...

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 ...

What happened: A collapse of lava deposits triggered Mayon’s longest pyroclastic flow of the year, racing 4 km down the ...