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 ...

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 ...

Glowing rivers of lava spilled down three sides of the Philippines’ Mayon volcano simultaneously over the weekend, triggering ...

Superheated avalanches of gas and rock have swept down the slopes of Mayon Volcano repeatedly in recent weeks, blanketing 87 ...

Volcanologist Professor Chris Jackson discovers evidence of the deadly pyroclastic flow. Volcanologist Professor Chris Jackson reveals the power of the deadly pyroclastic flow that had swept through ...

More than 300 families were evacuated after Mayon volcano's lava deposits collapsed, resulting in significant ashfall over 87 villages. Although there was no explosive eruption, the pyroclastic flow ...

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 ...

AS the Department of Science and Technology-Philippine Institute of Volcanology and Seismology (DOST-Phivolcs) assesses a ...

(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 ...