Volcanoes are grouped into four types: cinder cones, composite volcanoes, shield volcanoes and lava volcanoes. Cinder cones are circular or oval cones made up of small fragments of lava from a single ...

From the glowing lava flows of Hawaii Volcanoes National Park to Yellowstone's spewing geysers and bubbling paint pots, our national parks provide a window into the molten interior of our planet.

The Tentative Lists of States Parties are published by the World Heritage Centre at its website and/or in working documents in order to ensure transparency, access to information and to facilitate ...

On May 18, 1980, Mount St. Helens blew its top. After the northern face of the mountain slumped away in the most massive landslide ever recorded, molten rock gushed up from reservoirs several ...

It comes as no shock that a potentially new type of volcanic lightning had long eluded scientists: The bolts can be as short as about 3 feet (1 meter) long and last just a few milliseconds. But ...