This video shows a massive green volcanic mountain rising beside the Pacific Ocean on the island of Oahu, Hawaii, United ...

Many adventure-seeking Singaporeans remain keen to climb volcanoes, often ignoring warnings for once-in-a-lifetime goals, ...

The event scientists had been predicting for three months finally happened on May 18, 1980. Mount St. Helens erupted on May ...

A trip through Guatemala takes a dramatic turn when a hike toward an active volcano brings the group dangerously close to ...

Summer is peak adventure season, and a new report highlights some surprising picks for your next outdoor trip ...

Taftan volcano in southeastern Iran rose 3.5 inches over 10 months, signaling that it is waking up after 700,000 years of ...

It boasts lush landscapes, dramatic cliffs and volcanic mountains ...

Forty-six years ago today, Mount St. Helens erupted and unleashed a catastrophic landslide and mudflows that led to the ...

Beat the summer heat by going underground. Arizona is home to famous caves, like Kartchner Caverns. Here are 5 of the best ...