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Most of the terrain park is now much improved due to volcanic activity in recent years. Since 2004, scientists began to notice the ground on the caldera rise – about 2.8 cm per year. Although this figure has fallen over the last 3 years, increasing the total since the beginning of the swelling is now about 10 inches in some places.
caldera is a crater. Every time begins, the epidemic has been a thousand times more powerful than the 1980 eruption of Mount St. Helens. His last major explosion was about 640,000 years ago, but about 30 small explosions filled the caldera with lava and ashes ever since. The latter is a small explosion about 70,000 years old.
But there is no reason to worry. Although investigators initially worried that the sound was pointing to the house soon-to-get, then no worries anymore. Learn more about the location of the Yellowstone Caldera National.