Visual observations have been a backbone of volcano research more than 2,000 years and remain fundamental to understanding how volcanoes work. Technological advancements — such as livestreaming ...

Add Yahoo as a preferred source to see more of our stories on Google. Image of active volcano shows magma pressure inside volcanoes can destabilize slopes and trigger collapse. (CREDIT: YouTube / CC ...

Deep below the Pacific, a restless seafloor volcano off Oregon is showing signs it may soon stir again. Axial Seamount, a submarine volcano located nearly a mile beneath the ocean surface, is flexing ...

America’s deadliest volcano has just rattled through more than 1,000 tiny earthquakes in a matter of days, a drumbeat of tremors that has revived old fears about catastrophic mudflows racing down its ...