KILAUEA VOLCANO, Hawaii -- A Utah tourist captured video of an exploding volcano in Hawaii that sent molten lava and rocks flying through the air. Diane Ririe, who was visiting her parents in ...

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 ...

Scientists have uncovered a long-missing piece of the volcanic puzzle: rising magma doesn’t just form explosive gas bubbles when pressure drops—it can do so simply by being sheared and “kneaded” ...

Klyuchevskoy volcano in Russia erupted shortly after a powerful 8.8 magnitude earthquake in the same region. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

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.