Pyroclastic flows are some of the most fearsome hazards posed by erupting volcanoes. These avalanches of superheated ash, gas, and rock are responsible for some of the most famous volcanic disasters ...

BUFFALO, N.Y. -- Technologies ranging from mathematical modeling, geologic simulation and geographic information science to scientific computing and virtual reality are being combined by University at ...

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 ...

Thousands of years ago, at different points in time, clouds of ash, rock and hot gas rushed across the Mojave and Sonoran deserts as two volcanoes erupted. These destructive events are long over. But ...

(AP) -- The Philippines' most active volcano could have a huge eruption within days, officials warned Sunday after detecting a drastic surge in earthquakes and eerie rumbling sounds in surrounding ...