The magma is found under volcanoes that are believed to be sleeping in the CASCADE group

Unlike the old soldiers, the old volcanoes appear to not fade, much less than death, as the researchers discovered magma rooms under cones that were previously classified as sleeping after thousands of years of lack of activity.

In the results published in the Nature Geoscience magazine, a team from the Department of Earth Sciences and Air Force at the University of Cornell and US Geological Survey (USGs) used seismic waves to find magma under both active and durable volcano in the Shalali range that extends Washington and Oregon in the United States and British Colombia in Canada .

“All volcanoes, including those sleeping, have continuous and large magma’s bodies,” the team mentioned.

“It seems that these slopes are located under volcanoes throughout their entire life, not only during an active condition,” said Bang from Corning.

The results are challenging “assumptions” about volcanoes, according to the team, in turn raises the issue of whether the “sleeper” category is widely used may be excessive.

Parkins underwater do not count along the 16,000 -km Atlantic medium hills, there is anything from 1,350 to more than 1500 “active” volcanoes around the world, according to estimates from USGs and British Geological Survey (BGS), with many Among the volcano in the Pacific Ocean, which includes CASCADES, is the location of the “highly high threat” volcanoes in the United States, according to the country’s government.

BGS says that there are 82 pools in Europe, more than a third of them on Iceland, while USGs believes that the United States is the home of a volcano “potentially active.”

More work should be done to track where the explosions can occur, according to the Cornell-Usg team. “If we have a better general understanding of the location of the magma an intensive study,” said Jeffrey. “

There is one place where the monitoring is carried out in the Yellowston National Park, where there is a portion of it at a top of 50 km in Caldira 70 km.

Last month, Nature has published works led by USGs, which reveals that Magma is under the so -called Supervolcano moving.

The Yellowstone’s main disaster is likely to fall and leave no survivors across a hundred -miles in a radius. The potential volume of such an explosion can separate enough ash not only for the surface of most North America, but also prevents sunlight and causes multi -year global volcanic winter, according to many scientific assessments.