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 ...

The explosiveness of a volcanic eruption depends on how many gas bubbles form in the magma—and when. Until now, it was thought that gas bubbles were formed primarily when the ambient pressure dropped ...

Russia was hit by a massive 8.8 magnitude earthquake on July 30, and hours later, the Klyuchevskaya Sopka in the Kamchatka region erupted. Then, on August 3, another volcano that had been dormant for ...

In 1883, Krakatoa exploded over Indonesia, unleashing the deadliest eruption in modern memory. A gallery of some of its most spectacular successors suggests that a similar disaster may lurk beneath ...

When individuals hear volcanoes, they tend to envision blazing eruptions blasting into the air. However, volcanoes can also collapse sideways, with their sides, or flanks, collapsing. Such a collapse ...