In the summer of 1831, strange things began to happen in the skies over Europe and North America. The sun shimmered blue and ...

The term 'lahar' refers to a deluge of water, volcanic material and other debris which has been swept along.

The 1980 eruption cycle made Mount St. Helens one of the most famous volcanoes in the Cascades. But it is far from the only ...

Mount Etna, the highest active volcano in Europe, erupted on Monday morning, causing a chaotic scene at the popular Italian ...

The location within Pollino National Park makes Aieta an ideal base for exploring its ancient forests, deep gorges carved by ...

The largest volcanoes in Earth’s history owe their formation to powerful geological phenomena called mantle plumes—upwellings of abnormally hot rock within the Earth’s mantle that rise toward the ...

Historical accounts and studies of ancient volcanic rocks show that times of volcanic repose transition into loud seismic and eruptive awakenings in a cycle that’s transpired several times in ...

In this city of endless museums and galleries, here are some sequestered collections filled with rarities.

There are currently no active volcanoes in New England, but they did once exist in the region and they created some of the landforms you can see today. The Ossipee Mountains are an example of a “ring ...

This Cold War outpost concealed more than submarines—it hosted a devastating eruption that cooled the planet nearly 200 years ...

Over the past two decades, it has evolved into China's most comprehensively equipped volcanic monitoring facility. The ...

John Yang looks back at the deadliest and most destructive volcanic eruption in U.S. history with Steve Olson, author of “Eruption: The Untold Story of Mount St. Helens.” It was 45 years ago ...