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 ...

(CNN) — Here's some background information about volcanoes, mountains that open downward to a reservoir of molten rock. Facts: More than 80% of the Earth's surface, both above and below sea level, is ...

Volcano Alert Level: Watch. Kīlauea has erupted episodically since Dec. 23, 2024, within the summit caldera located within ...

Volcanoes are Earth’s special effects department, constantly proving that reality can be more dramatic than Hollywood. Lava flows like glowing rivers, ash clouds turn skies into apocalyptic paintings, ...

You may have seen the Yellowstone Volcano Observatory’s “Caldera Chronicles” article about their new-and-improved website, in which they hint at a change coming to the Hawaiian Volcano Observatory’s ...

In Alaska, scores of volcanoes and strange lava flows have escaped scrutiny for decades, shrouded by lush forests and hidden under bobbing coastlines. In the past three years, 12 new volcanoes have ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. HAWAII COUNTY, Hawaii — The most active ...

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 ...

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 ...