Echinus Geyser in Yellowstone National Park, a rare acidic geyser and the largest in the world, has recently been observed ...

Visual observations have been a backbone of volcano research more than 2,000 years and remain fundamental to understanding ...

Dozens of people have died, hundreds are missing and many more homes were destroyed after separate volcanic eruptions in Hawaii and Guatemala that made headlines worldwide in recent months. And ...

Spectacular videos show several volcanoes erupting and spewing fiery lava. Guatemala's Volcan de Fuego, meaning volcano of fire, began spouting a constant stream of molten lava on February 23. It's ...

HONOLULU — Hawaii's Kilauea volcano resumed erupting Friday by shooting an arc of lava 100 feet (30 meters) into the air and across a section of its summit crater floor. It was Kilauea's 31st display ...

Nearly 600 years ago, a massive volcanic eruption sent clouds of sulfurous gas and ash high into the atmosphere. The blast known as the 1458/59 CE event was so huge that it triggered decades of ...

Honolulu — Hawaii's Kilauea volcano resumed erupting on Tuesday, firing lava 330 feet into the sky from its summit crater. It's the 32nd time the volcano has released molten rock since December, when ...

Timelapse footage shows Kanlaon Volcano erupting in the Philippines, generating a dark gray ash plumes that rose more than 6,500 feet above the crater.

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. How and if a volcano explodes depends on how and when bubbles of ...

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.

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” ...