CNN Editorial Research (CNN) — Here’s a look at volcanoes, mountains that open downward to a reservoir of molten rock. Facts: More than 80% of the Earth’s surface, both above and below sea ...

The ash cloud from an Icelandic volcano has had flights in northern Europe grounded since last Wednesday. What is volcanic ash, and why is it dangerous to people and aeroplanes? Volcanic ash can ...

The Pinatubo volcano has erupted explosively, sending a towering ash plume high into the atmosphere, capturing the attention of volcanologists and local communities alike. This video provides the ...

Pliny the Younger described the ground shaking as Mount Vesuvius exploded in fury. That eruption devastated Pompeii.

Deep below the surface of the ocean, bacteria and critters that feed off nutrients spouting from hydrothermal vents met with ...

Mount Lewotobi’s past eruptions have resulted in fatalities, such as in November 2024, when at least nine people were killed ...

A Volcanic Ash Advisory was issued for Texas on Wednesday as winds shifted ash north. The Popocatépetl Volcano spews ash and smoke as seen from Mexico on May 18, 2023.

PDCs are “hazardous mixtures of hot volcanic gas, ash, and fragmented rock” that travel down volcanic slopes at high speeds. More about Volcano Philippines Avalanches Magma earthquakes.

Volcanic ash may fall quietly, but its effects are widespread, persistent and potentially deadly. It poses a chronic threat to health, agriculture, infrastructure and aquatic systems.

The volcano has erupted at least four times in 2025. Read more at straitstimes.com. Read more at straitstimes.com.

Get the facts. Analysis of Campi Flegrei offers fresh insight into its activity cycle, ... Twice in the last 60,000 years, large blasts of volcanic ash and rock have blanketed the region, ...