This story appears in the August 2018 issue of National Geographic magazine. Indonesia has 127 active volcanoes. Only the U.S. (168) and Russia (144) have more. Essential packing list: We landed ...

Researchers have identified the source of a huge volcanic eruption that posed a mystery for nearly 200 years, a study reports. The event, which took place in 1831, was one of the largest eruptions ...

VANCOUVER, Wash. - Living in the Ring of Fire, Washington state residents are no strangers to the possibility of volcanic activity. With five active volcanoes, including Mount St. Helens, the threat ...