When geologists study volcanic hazards or try to anticipate what a volcano may do in the future, one of their primary tools is to examine the volcano’s past behavior.

Hawaii’s Kilauea volcano resumed erupting on Tuesday, firing lava 330 feet (100 meters) into the sky from its summit crater. It’s the 32nd time the volcano has released molten rock since December, ...

Dozens of people have died, hundreds are missing and many more homes were destroyed after separate volcanic eruptions in Hawaii and Guatemala that made headlines worldwide in recent months. And ...

A Martian volcano once thought to be the result of a single eruption turns out to have a much more complex past. Orbital imaging and mineral data show it developed through multiple eruptive phases, ...

Kilauea volcano put on another spectacular show Friday night with lava fountaining in Halemaumau crater reaching new heights for the latest eruption, which began nearly 10 months ago. Scientists with ...

It measures 310,000 square kilometres (119,000 square miles) and its ‘roots’ extend around 30 kilometres (18 miles) into the Earth’s crust. (For comparison, the US state of Washington is 184,661 ...

Volcanoes can erupt suddenly, but satellite technology now detects hidden ground shifts and heat changes. This helps scientists monitor remote volcanoes where ground sensors are scarce. These advanced ...

Add Yahoo as a preferred source to see more of our stories on Google. MANILA, Philippines (AP) — A series of mild eruptions at the most active volcano in the Philippines has prompted the evacuation of ...

Add Yahoo as a preferred source to see more of our stories on Google. When you think of the United States, images of sprawling cities and vast landscapes might come to mind, but not the hidden and ...

Streams of molten lava flowed from Hawaii's Kilauea volcano overnight Saturday into Sunday, ahead of another eruption expected to take shape in the coming days, the U.S. Geological Survey said.

Rare 'limnic eruptions' can unleash deadly, invisible gas clouds from deep lakes, as seen in Cameroon's 1986 Lake Nyos ...