Nandini Pharasi, Jaypee Institute of Information Technology
Today, most discussions on the dangers presented by volcanoes are based on a simple equation,” the larger the anticipated eruption, the greater the impact on society and human well-being.”
The current scenario:
At present, assessments are too skewed towards large explosions or nightmare scenarios whereas mild incidents disabling key international communications, trading networks, or transportation hubs are more likely to pose concerns. This applies to earthquakes, harsh weather, and the eruption of volcanoes. The calculation is currently overly skewed into catastrophic explosions or nightmare scenarios, whilst the mid-level danger of big international communications, trading networks, or transport hubs is more pronounced. This applies also to earthquakes, severe weather, and volcanic outbreaks.
Pinch points:
Seven “pinch spots” have been discovered by researchers led by the University of Cambridge’s Centre for the Study of Existential Risk (CSER), where clustering of tiny but explosive volcanoes sit beside important infrastructure that, if disrupted, may have catastrophic global repercussions. However, a group of scientists now claims that far too much emphasis is placed on the hazards of large but uncommon volcanic eruptions. On the other hand, far too little attention is devoted to the possible domino consequences of moderate eruptions in critical regions of the world.
CSER’s Dr. Lara Mani, lead author of the recent study says that even if a moderate outbreak occurs at one of the locations, it can produce enough ash to disrupt supply lines of global financial systems or cause an oversized earthquake. A comparatively mild eruption enters the northern point of a Taiwanese volcano at seven pinch points identified by scientists as likely to steer to the biggest global catastrophe. One of the leading manufacturers of electronic chips may stop the international technology sector if this place is not available indefinitely with the Taipei Port.
The Mediterranean, where the old world tales like Vesuvius and Santorini could produce tsunamis that struck the wet cable networks and shut down the Suez Canal, is another high point of pinching. “We saw international business cost up to $10 billion a week when a container ship was shut down on Suez Channel for six days,” Mani continued. Example from Iceland’s recent history in 2010 when the magnitude 4 Eyjafjallajökull volcano eruption was near the core pink spot in mainland Europe and the ash feathers were delivered by North-West winds, costing the world economy five trillion dollars.
• The Luzon Strait in the South China Sea, the center of the major cable networks connecting China, Hong Kong, Taiwan, Japan, and South Korea, is another important maritime route. The Luzon Volcanic Arc also surrounds it.
• Taiwan, North Africa, North Atlantic, and America comprise these locations.
• Seattle might be covered by a second-rate, cloud-based eruption in the Pacific Northwest, in the United States. The Mount Rainier 6 divergence scenario model predicts that the potential economic loss over the next five years will be approximately $ 7 trillion.
Discussion and conclusion:
Mani concluded that it is time to alter our view of major volcanic disasters. We must keep one’s hands off from the big bang shown in the Hollywood blockbuster that is destroying the planet. The most likely possibilities are lower-magnitude eruptions that interact with and catch up with our social weaknesses. The scientists also pinpoint the volcanic zone lining the Chinese-North-Korean borders from which ash feathers would block easternmost busy airways and point out that the same would happen with the reawakening of Icelandic volcanoes in the west.
The extremely active volcanic centers in Indonesia’s Sumatra-Central Java archipelago also flank the Malacca Strait, one of the busiest shipping routes in the world, with 40% of the world’s trade crossing the tight waterway every year. Mani and colleagues are saying that the “volcanic explosive indice,” which is less than 6 eruptions, could easily create ash clouds, mudflows, and landslides that squash cabling, resulting in financial market shutdowns, or devastation of crop yields, causing shortages of food that lead to a political turmoil, rather than the seven- and eighties that are targeted to disaster thinking. But when Mt. Pinatubo erupted in the Philippines in 1991, a splash approximately six times larger than the Island catastrophe, Eyjafjallajökull was less than sixth in all in economic damage because of the remoteness from key infrastructures (Pinatubo, if it happened in 2021, would have a worldwide economic effect of around US$740 million).
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Reference:
- Mani, L., Tzachor, A., & Cole, P. (2021). Global catastrophic risk from lower magnitude volcanic eruptions. Nature Communications, 12(1), 4756. https://doi.org/10.1038/s41467-021-25021-8
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Author info:
Nandini Pharasi is a third-year student, pursuing biotechnology from Jaypee Institute of Information Technology. She plans to be a researcher in the future.
Social media link: https://www.linkedin.com/in/nandini-pharasi/
Publications:
5 thoughts on “Modest eruptions may cascade into a catastrophic disaster”