According to international sites, “Yellowstone Caldera” a supervolcano has caused a dramatic ground swelling in the area of Yellowstone National Park in US. The supervolcano just took a deep breath which causes miles of ground to rise dramatically.
Yellowstone Caldera has been considered as an active volcano that covers a 25 mile by 37 mile area of Wyoming (An Indian word, meaning “mountains and valleys alternating”). During its last big blast about 640,000 years ago, a large crater was formed in the area. After the big blast, the supervolcano averages 30 minor eruption. The most recent eruption of the supervolcano was 70,000 years ago that produced the areas flat landscape.
Last 2004 the Scientist noticed that the Caldera’s ground rises at the rate as high as 7 centimeters in a year. Though in some point the ground swelling rate slowed down between 2007 and 2010 to a centimeter a year or less.
A Yellowstone‘s volcanism expert, Bob Smith of University of Utah, noticed that the supervolcano shows an “extraordinary uplift, because it covers such a large area and the rates are so high.”
Estimating the whole Yellowstone National Park, it has an area of 3,468 square miles that include lakes, canyons, rivers and mountain ranges.