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.

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 ...

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 ...

Hawaii’s Kilauea volcano erupted in early May, sending a smoldering flow of lava into residential areas on the Big Island. Authorities ordered people living in Leilani Estates and Lanipuna ...