Quiz: Which volcanic event created the large caldera that is now p August 28, 2025 by Mira Thorne Which volcanic event created the large caldera that is now part of Yellowstone National Park? Discover more about Yellow Stone National Park at our home page. A) The eruption of Mount Vesuvius B) The eruption of Mount St. Helens C) The Lava Creek eruption D) The eruption of Krakatoa Submit Answer