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 ...

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 ...

Klyuchevskaya Volcano on Russia's Kamchatka Peninsula is the largest active volcano in the Northern Hemisphere. A caldera is the circular depression in the center of a volcano's summit that forms ...

Kilauea continued to erupt wildly on Hawaii’s Big Island this week, shooting lava hundreds of feet into the air and burning homes to the ground. As of Sunday night, 10 fissure vents were open in the ...

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 ...

Kilauea continued to erupt wildly on Hawaii's Big Island this week, shooting lava hundreds of feet into the air and burning homes to the ground. As of Sunday night, 10 fissure vents were open in 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 ...

Kilauea continued to erupt wildly on Hawaii’s Big Island this week, shooting lava hundreds of feet into the air and burning homes to the ground. As of Sunday night, 10 fissure vents were open in the ...