Volcanologists warn of the risk of a major eruption that would ‘devastate global society’

The the world is “terribly unprepared” for a massive volcanic eruption. This is the conclusion reached by volcanologists from the University of Cambridge, Michael Cassidy and Lara Maní, in a study carried out jointly with experts from the University of Birmingham and published in the scientific journal ‘Nature‘.

In addition, these experts spoke of the investments allocated to monitoring and responding to possible volcanic disasters by governments in recent years. “There is no coordinated action, no large-scale investment, to mitigate the overall effects of large-scale eruptions. This must change. “, supported the authors of the study. They also argued that there is a “widespread misconception” that the risks of a massive eruption are low.

On the other hand, the effects of this great volcanic eruption would have a enormous impact not only on the climatebut also in supply chains and global trade, resulting in an increased risk of famine and economic loss. “The impacts would ripple through transport, food, water, trade, energy, finance and communications, as this is a globally connected world.”

A series of conclusions reached after last year, researchers analyzed ice cores in Greenland and Antarctica. have been recorded until 1,113 signatures of ice eruptions at the North Pole and 737 at the South Pole, They formed between 60,000 and 9,000 years ago. Among them, 97 events probably had a climatic impact equivalent to that of an eruption of magnitude 7 or more. The researchers concluded that magnitude 7 events occur approximately once every 625 years.

By way of example, they cite the case of the Eruption of the Hunga-Tonga volcano occurred in January of this year and caused almost complete disappearance by the tsunami caused by a powerful volcanic eruption submarine in the Pacific. More 20 ships capsized off Japan due to the tsunami caused by the eruption of the underwater volcano that erupted near the Tonga archipelago.

“Was the the volcanic equivalent of an asteroid that “nearly collided” buzzing near Earth,” the study authors mention in the aforementioned scientific journal, who also explained the effects the eruption had in other places on the planet. “The submarine cables have been severed, cutting off Tonga’s communications with the outside world. The explosion created a global shock wave and tsunamis that reached the Japanese and American coasts.

“The most vulnerable regions must be identified”

Mani and Cassidy appealed to government authorities and key international organizations to identification of potentially active volcanoes and conducting an analysis of historical and geological records. “The most vulnerable regions and those most exposed to volcanic risks must be identified.”

Finally, volcanologists recalled that planetary defense “receives hundreds of millions of dollars in funding each year and several worldwide agencies are dedicated to him”, as well as the last great eruption which occurred in 1815 in Indonesia, during which an estimated 100,000 people died and which caused an average drop in global temperatures of one degree.

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