When a large volcano erupts, as Mount Spurr appears close to doing about 80 miles from Anchorage, Alaska, it can ...

Could a volcanic eruption blow ash out of the Earth’s ... The highest volcanic column measured on Earth, from Mount Pinatubo in 1991, rose only 22 miles. But that was above the troposphere ...

Ash clouds are made of tiny particles that were lofted into the atmosphere from a volcanic eruption and can have a huge impact, even thousands of miles from the eruption.

Volcanic ash forms when viscous magma ... rescue and power networks, as the 1991 eruption of Mount Pinatubo in the Philippines dramatically demonstrated. During an ashfall event, the most ...

When Hunga Tonga–Hunga Haʻapai, an underwater volcano near Tonga in the South Pacific Ocean, erupted in 2022, scientists ...

An animation of the Mount Pinatubo eruption of 1991 in the Philippines and its effect on the global climate. The eruption caused sulphur dioxide and ash particles to be ejected into the atmosphere.

Almost 300,000 residents in Alaska's largest city are bracing for an explosive volcanic eruption. Mount Spurr, a 11,000-foot-tall volcano that sits just 81 miles from the largest city in the ...

Alaska residents are again being urged to brace themselves for a possible eruption of Mount Spurr ... recently reported "significantly elevated" volcanic activity from Mount Spurr.