Deadliest volcanic eruption: The 1815 eruption of Mount Tambora in Indonesia, which killed up to 100,000 people From lava fountains to towering ash clouds, volcanoes produce some of the most dramatic ...

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 ...

On Italy's island of Sicily, Mount Etna has spewed lava almost continuously for thousands of years, threatening inhabitants, but also supporting flora and fauna.Italy's Mount Etna lays claim to ...

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 ...

400-mile-long chain of fossilized volcanoes discovered beneath China Researchers recently discovered a huge chain of extinct volcanoes buried deep below South China that formed when two tectonic ...