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.

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

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

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

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

Magma from the mantle finds its way to the surface, where it erupts as lava or ash and gas—sometimes in spectacular spurts, ...

Have you heard or read about the Axial Seamount? The Axial is an underwater volcano located approximately 480 kilometers (300 mil ...

Axial Seamount has drawn intense interest from scientists. It is now the best-monitored underwater volcano in the world. The volcano is a prolific erupter in part because of its location, Chadwick ...

Nearly a mile deep and about 700 miles northwest of San Francisco, the volcano known as Axial Seamount is drawing increasing scrutiny from scientists who only discovered its existence in the 1980s.