A small explosion of rocks, ash and steam could occur within the next few days within the crater of Mount St. Helens, where earthquake activity has been steadily building for nearly a week, scientists ...

MOUNT ST. HELENS, Wash. - New thermal images reveal that parts of the lava dome in Mount St. Helens' crater are piping hot, and scientists are seeing signs that magma continues to rise. Scientists ...

The Philippines' most active volcano was gently spewing lava down its slopes Monday, alerting tens of thousands of people they may have to quickly flee a violent and life-threatening explosion. More ...

The Cleveland Volcano, located near the middle of Alaska's Aleutian Islands chain, has had its warning status bumped up after scientists observed a lava dome building Tuesday. Scientists had warned ...