A seismic survey challenges the long-standing belief that only active volcanoes have large magma bodies sitting beneath them.

From Indonesia's volcanic ascents to Thailand's verdant jungle trails, there are treks galore for nature lovers.

Oregon's lone national park, Crater Lake, is arguably one of the most beautiful alpine lakes on the planet. More than 7,700 years ago, an ancient volcano named Mount Mazama erupted and caused the ...