Which volcano has the largest caldera on Earth?
Quick Answer
The Yellowstone volcanic system in the United States is home to one of the largest calderas on Earth. The Yellowstone caldera spans roughly 70 by 45 kilometers.
The Full Story
Yellowstone National Park sits atop a massive volcanic system that includes one of the largest calderas on Earth. The Yellowstone caldera is roughly 70 kilometers long and 45 kilometers wide. It formed after a major explosive eruption and later collapse of the ground above the magma chamber. While Yellowstone is famous for its geothermal features, the caldera itself is the result of ancient volcanic activity rather than a single mountain-shaped cone.
Key Facts
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