Widely shared social media posts claimed a massive underwater volcano "the size of a city" was "showing signs it could erupt ...

A massive volcano has shown critical signs that an eruption could be coming soon, but experts have said that there may be no way of telling when it'll blow.

The volcano last erupted in 2015, producing 450-foot-thick lava flows, but because of its remote location, it is not a threat to human life.

A seismologist from Seattle discussed recent volcanic activity across the United States. Here's what you should know.

Volcanoes across several US states have recently become active, while no immediate danger is reported, experts remain ...

Lava in Hawaii, seismic shaking in Alaska and underwater rumblings near Oregon. Scientists say it’s not the end of the world, ...

Pillars of hot rock appear to connect continental-size moving blobs at the bottom of Earth's mantle to giant volcanic eruptions at its surface.