Lava domes are rounded, steep-sided mounds built by magma that is highly resistant to flow, usually either dacite or rhyolite. Such magmas are typically too viscous to move far from the vent ...

A volcano in the Philippines has begun spewing lava, as authorities warn that a "hazardous eruption" is possible "within hours or days". In the early hours of Monday, a weak flow of lava began ...

After the Kilauea volcano - one of the most active volcanoes in the world - erupted, slow-moving rivers of lava in the Leilani Estates area have covered more than 100 acres and destroyed dozens of ...

Lava is the word for magma when it erupts onto the Earth's surface. Geologists also use the term to describe the solidified deposits of lava flows and fragments hurled into the air by explosive ...

It is the world’s largest active volcano. After its eruption began on November 27, Mauna Loa was shooting jets of lava for days. This was the first time in nearly 40 years that two volcanoes on ...

Cascades of lava flowed from one of Mount Etna’s largest craters for the first time in four years. It is Europe’s tallest active volcano. Photo: Etna Walk/Giuseppe di Stefano/Reuters ...