Lava is molten rock from a volcano that reaches the Earth’s surface. Liquid rock below the Earth’s surface is referred to as magma. More than 50% of the world’s active volcanoes above sea level ...

Earth’s largest volcanic system, hidden in mountain chains under the sea, has long been assumed to erupt only quietly. The ...

Hawaii volcanoes characterize the gentle type, known as shield volcanoes. Shield volcanoes occur far from the crushing compressive edges of tectonic plates. They are common in Hawaii and other Pacific ...

Humboldt ERFSA, the Emeritus and Retired Faculty and Staff Association will welcome Brandon Browne, professor in the Cal Poly Humboldt Department of Geology, on April. 9 from noon to 1 p.m. at the ...

Here’s a look at volcanoes, mountains that open downward to a reservoir of molten rock. More than 80% of the Earth’s surface, both above and below sea level, is of volcanic origin. Lava is molten rock ...