The East African Rift System is a 4,000-mile-long, 22-million-year-old zone that extends from Jordan to Mozambique. And it's been increasingly active in the past two decades, leading to speculation ...

A new volcanic eruption has occurred on Iceland ... An eruption in January this year opened a 15-kilometre-long crack, into which magma flowed at the fastest rate ever recorded.

What’s next? Lava is erupting from several volcanoes, including one in Hawaii. Nearly 50 volcanic eruptions have been recorded this year, and more are expected. The Axial Seamount, an underwater ...

Iceland is building a wall to try to divert lava before the Fagradalsfjall volcano erupts. Thousands were evacuated ahead of the expected eruption. More from News Iceland is building a wall to try ...

They form when magma rises into a fissure or creates a new crack by forcing its way through rock. Hundreds of dikes can invade the cone and inner core of a volcano, as they do in Nyiragongo ...