Mauna Kea When you think of the tallest mountains, instinctively, Mount Everest comes to mind. But here's a shocker: Mauna Kea in Hawaii takes the crown as the tallest volcano on Earth. Measuring over ...

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 ...