New studies suggest that a catastrophic catastrophic eruption, the one that causes global deaths, is far more likely than previously believed.
Approximately 20 such volcanoes, which scientists believed to be semi-sleeping, could actually pose current risks, the study says.
Previously, it was widely believed that eruption potential depended on the presence of liquid magma beneath the volcano.
However, a new study coordinated by Oregan State University in the United States and conducted in collaboration with scientists around the world found evidence that an eruption could occur even if no liquid magma was found.
Correctly, it means that various catastrophic eruptions that were previously thought to be dangerous only in the future can now be very dangerous to humankind.
“We need to reassess the concept of what’eruptable’is,” said Martin Danisik, an associate professor at Curtin University in Australia this week, one of the lead authors of a study published in the Journal of Communications Earth & Environment. It is a person.
The team came to a conclusion after investigating what happened in Indonesia today after the super-eruption of Lake Toba about 75,000 years ago.
The event itself is said to have caused years of global winter, with the population at that time reduced to just 3,000.
However, the fact that magma appears to ooze for up to 13,000 years thereafter is of particular interest to scientists. This is because it suggests that an eruption can occur even in the absence of liquid magma in the first place.
Professor Danisik said: “Super-eruptions are one of the most devastating events in Earth’s history, releasing large amounts of magma almost instantly. They affect the Earth’s climate and make it a” volcanic winter. ” It may change. This is an unusually cold time and can lead to widespread famine and population turmoil.
“Learning how catastrophic eruptions work is important for understanding the future threats of inevitable supervolcanoes.”
He added: “Super-eruptions can have regional and global implications, and recovery can take decades or centuries, but our results show that the danger does not end with super-eruptions. After showing that the threat of further danger has existed for thousands of years.
“Knowing when and how erupting magma accumulates and what the magma is like before and after such an eruption is important for understanding supervolcanoes.”