Volcanoes are often judged by the size of their eruptions, but volcanologists measure danger differently. A volcano becomes truly hazardous when explosive potential intersects with large populations, ...

We traveled deep into Ethiopia’s Danakil Depression to witness one of the most dangerous volcanoes on Earth — and things got ...

After Guatemala’s Fuego volcano erupted on Sunday killing at least 69 people, here is a list of the most deadly volcanic eruptions over the last quarter century. – 2014: Japan – The sudden eruption of ...

Urgent warnings were issued after hazardous volcanic ash was detected billowing from Mount St Helens, deemed America's ...

Who will stop the Rain-ier? Scientists are warning that Washington’s Mount Rainier could unleash a catastrophic mudslide that has the potential to devastate three large towns within minutes. Often ...

A Caribbean volcano responsible for one of the deadliest eruptions in history has shown a spike in seismic activity, sparking concerns that it could potentially blow again. Situated on the Caribbean ...

Seth Moran is worried about Mount Hood. In the 1780s, the volcano rumbled to life with such force that it sent high-speed avalanches of hot rock, gas and ash down its slopes. Those flows quickly ...