Geologists have identified over 400 ancient human footprints preserved at the foot of the "Mountain of God" in Tanzania. Similar to textbook examples like Pompeii whereby volcanic ash preserves ...

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 ...

But occasionally, the Mountain of God can roar to life in more dramatic fashion: On September 4, 2007, the volcano belched out a plume of ash that extended at least 11 miles downwind.