A recent study reveals that the Poás volcano has changed its eruption pattern, redefining the global ash-related risk map.

It was small by volcanic standards, but massive by human ones: on this day in 1980, Mount St. Helens erupted in what the ...

Mount Shasta presents a unique challenge that most other active volcanoes don't for USGS scientists. The only place to sample is near the summit of the active volcano located above 14,000-feet, ...

Volcanoes are among the most powerful forces of nature. Throughout history, some eruptions have shaken the Earth, changed the weather, and even affected human life for years. Scientists use the ...

A team of geologists led by the University of Maryland and the University of Hawaiʻi finally connected one of the largest volcanic eruptions in Earth’s history with its source deep beneath the Pacific ...

The 1980 eruption cycle made Mount St. Helens one of the most famous and now best-monitored volcanoes in the Cascades. But it is far from the only volcano in the range. From southern British Columbia ...

What can glass beads collected from the lunar surface more than 50 years ago teach scientists about the Moon’s volcanic history? This is what a recent study published in Icarus hopes to address as a ...

Add Yahoo as a preferred source to see more of our stories on Google. When you think of the United States, images of sprawling cities and vast landscapes might come to mind, but not the hidden and ...

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 ...