“This process can be likened to a bottle of sparkling water containing dissolved volatiles that exolve when the bottle is ...

The explosiveness of a volcanic eruption depends on how many gas bubbles form in the magma—and when. Until now, it was thought that gas bubbles were formed primarily when the ambient pressure dropped ...

One of the most explosive volcanoes in U.S. history began its eruption with a trickle, not a blast. Mount St. Helens' gas-laden magma oozed into the cone before the mountain finally erupted in 1980.

Few geologic events capture the imagination like an erupting volcano. We thrill at the image: Hot, molten rock comes bursting out of the ground, destroying most everything in its path. Volcanoes can ...

Dozens of people were ordered to evacuate their homes after a fiery volcanic eruption in southern Japan on Sunday as the national weather agency issued its top-level alert for the mountain. Television ...

A Russian volcano that once blew itself apart in a massive explosion is now rising from the ashes—faster than scientists expected. Decades of hidden activity have reshaped its entire structure, ...

Borobudur’s significance declined sharply, not only from volcanic damage but also due to the fall of its patron dynasty and ...