Filipinos pondered if they should move to shelters. Some lived along riverbeds where deadly pyroclastic flows and thick mud streams called lahars would roll down from the mountainside at high speeds, ...

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 ...

Volcanoes are notoriously deadly, but there’s no more frightening a way to meet your own personalized doom than via a pyroclastic flow. These fast-moving ferocious fires look more like summoned demons ...

Hannah Osborne is Nesweek's Science Editor, based in London, UK. Hannah joined Newsweek in 2017 from IBTimes UK. She is a graduate of Goldsmiths University and King's College London. Languages; ...

Guatemala’s Volcan de Fuego — Volcano of Fire — erupted spectacularly Sunday, shooting a plume of ash and gas nearly 6 miles into the sky and spreading ash and debris across towns and farms more than ...

Guatemala’s Volcan de Fuego — Volcano of Fire — erupted spectacularly Sunday, shooting a plume of ash and gas nearly six miles into the sky and spreading ash and debris across towns and farms more ...