Decipher the mysterious eruption of the super volcano

The researchers found that super volcanoes can erupt at any time, without the impact of earthquakes or external stimuli.

There are about 20 known volcanoes on Earth, including Toba Lake in Indonesia, Lake Taupo in New Zealand and Phlegraean field near Naples, Italy. On average, a volcanic eruption occurs every 100,000 years. However, when it occurs, it has a very serious effect on the Earth's climate and ecology, equivalent to a meteorite collision.

If awakened, the Yellowstone volcano (USA) is said to create terrible destruction.(Photo: BBC)

When a " volcano raged" 600,000 years ago in Wyoming state, in what is now Yellowstone National Park, it launched more than 1,000 km ^{3 of} smoke and lava into the atmosphere, Enough to bury a big city to a few kilometers deep. The eruption is 100 times larger than the eruption of Pinatubo volcano in the Philippines in 1992 and even surpassed the historical "rage" of Krakatoa volcano in 1883.

Scientists say that it is inevitable that super volcanism wakes up and destroys it, but the ability to predict the time of disaster is extremely important, helping us to be prepared to respond.

According to a trial by Swiss researchers at the European Synchrotron Radiological Application Facility (ESRF) in Grenoble, only the volume of molten magma in the super volcano is enough to trigger a massive eruption. awful Wim Malfait, head of research at the ETH Zurich Institute of Technology (Switzerland), emphasized: "We are now discovering that super volcanoes can" wake up "only because of its size, without any external impact factor ".

The pressure from the hot melt of magma in super volcanic hearts will create cracks in the Earth's crust, thereby helping magma erupt.

Malfait and his colleagues discovered that regenerating extreme heat and pressure inside "sleeping monsters" could help predict future super volcanic disasters.

In a separate study also published in Nature Geoscience, a team of experts from the University of Geneva (Switzerland) used a mathematical model to explain the differences between conventional and super volcanoes. volcano. They found that normal but active volcanoes can evolve over time into super volcanoes.