Scientists say the Earth is closer to a massive eruption – tech2.org

Scientists say the Earth is closer to a massive eruption



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A mbadive volcanic activity could occur sooner than scientists already estimated as new research suggests Wednesday .

Experts previously believed that the last When the world experienced one of these gigantic eruptions was 74,000 years ago, in Indonesia, the same Mount Agung that recently forced some 100,000 people to leave their homes in Bali. But this new research suggests that it was actually 20,000 and 30,000 years ago.

Scientists thought that these eruptions could only occur between 45,000 and 714,000 years, an amount of time that Professor Jonathan Rougier, a statistician and principal investigator of the study, considered "comfortably longer than our civilization." However, this new result published in the journal Earth and Planetary Science Letters suggested that it is far from reality.

Researchers at the University of Bristol, using an eruption data called the Lameve database, claimed that this apocalyptic and volcanic super-eruption capable of destroying a significant part of a whole civilization that lives In a whole continent, it could happen in the next 17,000 years.

  covering continents, Super volcano, mbadive eruption, Super eruption, apocalyptic eruption
These super eruptions could occur as frequently as every 5,200 years. Image credit: CNN

In addition, the team also said that the eruptions could occur as often as every 5,200 years.

"In general, we have been a little lucky not to have experienced any super eruption since then, it is important to appreciate that the absence of super eruptions in the last 20,000 years does not imply that there is an expiration date," said Jonathan Rougier, professor of statistical science. "What we can say is that volcanoes are more threatening to our civilization than we thought."

In comparison, a standard eruption could extend around 3,000 cubic kilometers filled with rocks and ash. But these gigantic eruptions could cover even the entire planet, changing the global climate for several decades.

Sufficient ashes to cover a continent

On one side of the study, experts wrote that eruptions of around 100 million metric tons could occur less frequently than the previous investigations suggested. On the other hand, more mbadive eruptions of 1,000 gigatons or more could occur much more frequently.

"The approach and evaluation are solid, and they will certainly help us understand and most importantly they can help predict future rashes," said Dr. Reichow of the University of Leicester, who was not involved in the study. "However, nature, including volcanic eruptions, does not necessarily work like watches."

  Ash covering continents, Super volcano, mbadive eruption, Super eruption, apocalyptic eruption
The ash that comes out of a super volcano could change the world's climate for decades. Image credit: Fire Earth

Prof. Rougier also said that the technology and techniques used to determine the "average time between super eruptions" can also be used to change the "approach of seismologists seeking earthquakes."

The researchers said that the largest eruption that occurred in the last two million years was the eruption of the Toba Caldera, in Sumatra, Indonesia. According to them, the volcanic ash that it threw covered about 671 cubic miles (2,800 cubic kilometers) throughout the atmosphere over the area.

That amount of ashes would be enough to cover half of the United States.

The island located in the middle of Lake Toba probably formed when the magma that came from the ground interacted with the water.

Source: Earth Letters and Planetary Science

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