Mount St. Helens -- What is a volcano? -- Layers of earth -- Kinds of volcanoes -- Eruptions -- Other dangers -- How volcanoes help -- From lava to land -- Dormant volcanoes -- Geothermal energy -- ...

In the predawn darkness, a team of scientists climbs the slope of Mexico's Popocatépetl volcano, one of the world's most active and whose eruption could affect millions of people. Its mission: figure ...

When you think of the United States, images of sprawling cities and vast landscapes might come to mind, but not the hidden and ever-present geological threat: volcanoes. While you might associate ...

Beneath the cold waters of the northeast Pacific Ocean, roughly 700 miles northwest of San Francisco, an ominous geological force is rumbling. Scientists warn that the Axial Seamount, one of the most ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. An unknown volcano ...

University of Birmingham volcanologist Mike Cassidy argued that the biggest danger could come, not from Yellowstone and Mount Etna, but from hidden volcanoes that appear dormant and are barely ...

Teresa Ubide works for The University of Queensland. She receives funding from the Australian Research Council and infrastructure funding from AuScope NCRIS. Imagine you had a crystal ball that ...

A 2024 satellite photo shows four end-to-end volcanoes perfectly spaced out along the Russian island of Simushir. One of these peaks was the site of a surprise eruption that temporarily cooled the ...

An underwater volcano off Oregon's coast is likely to erupt in 2025, according to scientists monitoring the situation. Axial Seamount—the most active volcano in the northeast Pacific Ocean—is located ...

Toxic sulphurous gas, carrying the telltale reek of rotten eggs, wafted through vents in the steep walls of Iceland’s Viti crater, while carbon dioxide bubbled to the surface of the milky blue crater ...