While Hawaii is formed by volcanoes, including the highly active Mt. Kilauea, I want to explore an easier-to-reach region: ...

When most of us think about active volcanoes in the U.S., Mount St. Helens, Mt. Rainier and a few others will first come to mind. However, one of the most active volcanoes in the region is about a ...

During the Mount St. Helens eruptions ... Iezzi said in the Cascades, wind patterns would often direct any ash from an erupting volcano eastward whereas the lahar risk primarily impacts the ...

During the Mount St. Helens eruptions, lahars flowed up to 60 miles destroying ... Iezzi said in the Cascades, wind patterns would often direct any ash from an erupting volcano eastward whereas the ...

One volcanologist who has spent time studying the volcano said the devastation its eruption would cause would be "complete and incomprehensible." ...

Expansive lava flows in the Sáttítla Highlands was captured by satellites ahead of the recent designation of the area as a national monument.

People’s fears were seemingly confirmed in the year 1104 when Hekla erupted with a Volcanic Explosivity Index (VEI) of 5 — the same rating as Mount St. Helens’ deadly 1980 eruption.

Roberti said it would be more similar to Mount St. Helens: a big explosion. He said more scientific studies are being launched across B.C. to better understand threats from volcanic activity.

A specimen of green glass said to be made from ash from the May 1980 eruption of Mount St. Helens in Washington State was examined and compared with a black glass made by melting a sample of the ash.

In 79 C.E., Mount Vesuvius erupted in southern Italy, burying the towns of Pompeii and Herculaneum — and everyone within them — in ash. But more than 1,000 ... before and after photos of the Mount St.