Washington – Seismic tomography technique is what was used by researchers to produce a complete picture of the volcanic “plumbing system” at Yellowstone, from the Earth’s mantle up to the surface. This is one of the world’s most dynamic volcanic systems that were previously unknown reservoir of hot, partly molten rock. Researchers say that its size can facilitate the filling up of Grand Canyon 11 times.
This is the second, deeper reservoir of 4.5 times larger after a discovery of another large magma chamber under Yellowstone which is said to have fed the eruptions 2 million, 1.2 million and 640,000 years ago.
Even though it mainly contains solid hot rock, some of the rock formations on the reservoir are melted. Yellowstone’s volcanic system has remained unchanged for nearly 17 million years though with slight deviations that may have been caused by shifts in the North American tectonic plate. Apparently the plate is said to move an inch every year southwestwards.
Yellowstone hosts one of the largest volcanoes in the world. According to the Scientists, a Yellowstone eruption can turn out to be 1,000 times more violent than Mount St. Helens eruption that occurred in 1980. It would have serious effects at a global scale.
University of Utah seismologist Jamie Farrell said that the new findings will provide researchers with the information they need to gain a better understanding of Magma’s movement from the mantle to the surface. This means the scientists will have to monitor the giant sleeping volcano as carefully as they can.
Mr. Farrell also confirmed that no scientists had ever witnessed large volcanic eruption. Most of them usually came across scale small-scale eruptions.
As it is now, Scientists are expecting another calderic eruption to occur northeast of the current giant crater. Through a series of explosions, the magma reservoir located beneath the magma chamber could be chockfull with adequate magma to produce a new caldera to the northeast.