An curved arrow pointing right. Cooking s'mores can be hard enough to do by a campfire. Inside a volcano? Now that's a challenge. Produced By Matt Johnston. Video courtesy of Associated Press and ...

An curved arrow pointing right. The To-Sua Ocean Trench is a swimming hole in a volcano's crater. People from all over the world travel to the Samoan island of Upolu to swim in the crystal clear ...

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 ...

Welcome to Volcano House, which sits at 4,000 feet (1,219m) above sea level in the Hawaii Volcanoes National Park, a Unesco World Heritage Site that's home to two of the world's most active ...

Magma collects inside a volcano's magma chamber before it erupts. Nyiragongo's magma chamber is located about 10 miles below the surface of the Earth.

Magma is the name given to molten material inside the earth (volcano) whereas lava is the name given to molten material which is often ejected from a volcano and then cools and solidifies.

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 ...