Using Seismic tomography, researchers have succeeded in producing a complete picture of the volcanic plumbing system at the Supervolcano Yellowstone right from the mantle of the Earth up to its surface. The Yellowstone represents one of the most dynamic among volcanic systems in the world that were hitherto unknown reservoir of partly molten rock that is hot. According to researchers, the size can help fill the Grand Canyon at least 11 times!!
After another large magma chamber was discovered under the Yellowstone that was expected to have prompted the eruptions 2 million, 1.2 million and 64,000 years ago, the present discovery of a deeper reservoir if about 4.5 times larger.
Though the present discovery shows solid hot rock, some of these rock formations on the reservoir are in a melted condition. For nearly 17 million years, the volcanic system at Yellowstone has remained unaltered while some minor deviations have been caused by shifts in the Tectonic plate of North America. The plate apparently is reckoned to be moving by an inch towards southwest every year.
Yellowstone is also home for one of the largest volcanoes around the globe. Scientists believe that a Yellowstone eruption can be a 1,000 times more violent compared to the Mount St.Helens eruption of 1980 and can have serious consequences on a global scale.
Jamie Farrell, seismologist at the University of Utah added that new findings will aid researchers with the information that they require to gain better understanding of the movement of the Magma from the earth’s mantle to the surface. This would also mean that scientists would need to monitor the giant volcano presently sleeping, with as much care as they can. Mr. Farrell further confirmed that no scientists have ever been witness to a large volcanic eruption and that most of them have only seen small scale eruptions.
At present, scientists are predicting another calderic eruption in the northeast region of the giant crater. The magma reservoir under the magma chamber can get chock full with enough magma to trigger the new caldera in the northeast, through a series of explosions.