Volcanic cones are among the simplest volcano formations. They are built by fragments (called ejecta) thrown up (ejected) from a volcanic vent, piling up around the vent in the shape of a cone with a ...

The White Island Volcano in New Zealand – which erupted Monday with a towering blast of ash and scalding steam, killing at least five people – is one of New Zealand's most active volcanoes. The ...

Lassen Peak, shown here, is the southernmost active volcano in the Cascade Mountain Range of western North America, extending from southern British Columbia to northern California. This vast range is ...

There are many different kinds of volcanoes, ranging from the Hawaiian type, which produces gentle, effusive eruptions that tourists can observe from mere steps away, to the andesitic variety, which ...

Ice volcanoes have shaped my life, and until today I didn’t even know if they actually existed. Now, thanks to NASA’s New Horizons spacecraft, there’s a good chance we’ve found a frozen volcanic cone ...

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 ...

May 23 (UPI) --Rocks recovered from a remote mountainside in East Africa have offered scientists fresh insights into an unusual type of volcano -- a type of volcanism more hazardous than previously ...