Tanzania's outlandish Ol Doinyo Lengai volcano, the only volcano on Earth that is currently erupting carbonatite lava, has been sinking at a rate of 1.4 inches per year for the past decade.

Ol Doinyo Lengai is an active volcano that erupts the runniest lava on Earth. Satellite data indicate that a magma reservoir about 1.4 miles (2.3 kilometers) beneath the crater began swelling in ...

Scientists studying the world's most unusual volcano have discovered the reason behind its unique carbon-based lavas. The new geochemical analyses reveals that an extremely small degree of partial ...

An active volcano in northeastern Tanzania known to the Maasai as the “Mountain of God” has been quietly rumbling—and it is showing signs that an eruption is imminent. Known as Ol Doinyo ...

Volcanologists estimate that the volcano started forming some 370,000 years ago. Explosive eruptions come every generation or so, with the last one occurring in 2007 and 2008.

Tanzania’s Ol Doinyo Lengai is unique for two reasons: It’s the only active volcano that erupts natroncarbonatite lava, and it’s within a region where the Earth’s surface is just beginning ...

A volcano could be due to erupt, new research has revealed. The more than 9,000-foot-tall volcano has showed signs of bulging, suggesting magma is filling up below Earth's surface.

Tanzania’s Ol Doinyo Lengai spews out bizarre black lava, which could help solve mysteries of the planet’s mantle. But getting your hands on a sample is not easy.

ARUSHA, TANZANIA—Two sets of hominin footprints could be lost if the Ol Doinyo Lengai volcano erupts, according to a report in New Scientist. Scientists studying tremors in East Africa’s Rift ...