NASA is concerned about the Yellowstone supervolcano exploding.
As tens of thousands of people gathered in Yellowstone National Park Monday morning to witness the once-in-a-century solar eclipse, the area was hit by a 3.2 magnitude earthquake. This recent tremor, though not large, is part of an ongoing series of quakes that began June 12. Experts believed the unusually large swarm of earthquakes would gradually die down but by the beginning of August, over 1,400 minor tremors had been recorded at the site…
However, Monday’s tremor, following a 2.5 magnitude quake at 7:23 PM Sunday night, indicates that the earthshaking problem is unlikely to simply go away. Should the supervolcano erupt, the threat to the Earth, said NASA scientist Brian Wilcox, “is substantially greater than the asteroid or comet threat.” BreakingNewsIsrael
Lying beneath the tranquil settings of Yellowstone National Park in the US lies an enormous magma chamber. It’s responsible for the geysers and hot springs that define the area, but for scientists at Nasa, it’s also one of the greatest natural threats to human civilisation as we know it: a potential supervolcano.
Following an article we published about supervolcanoes last month, a group of Nasa researchers got in touch to share a report previously unseen outside the space agency about the threat – and what could be done about it.
“I was a member of the Nasa Advisory Council on Planetary Defense which studied ways for Nasa to defend the planet from asteroids and comets,” explains Brian Wilcox of Nasa’s Jet Propulsion Laboratory (JPL) at the California Institute of Technology. “I came to the conclusion during that study that the supervolcano threat is substantially greater than the asteroid or comet threat.”
There are around 20 known supervolcanoes on Earth, with major eruptions occurring on average once every 100,000 years. One of the greatest threats an eruption may pose is thought to be starvation, with a prolonged volcanic winter potentially prohibiting civilisation from having enough food for the current population. In 2012, the United Nations estimated that food reserves worldwide would last 74 days.
When Nasa scientists came to consider the problem, they found that the most logical solution could simply be to cool a supervolcano down. A volcano the size of Yellowstone is essentially a gigantic heat generator, equivalent to six industrial power plants. Yellowstone currently leaks about 60-70% of the heat coming up from below into the atmosphere, via water which seeps into the magma chamber through cracks. The remainder builds up inside the magma, enabling it to dissolve more and more volatile gases and surrounding rocks. Once this heat reaches a certain threshold, then an explosive eruption is inevitable.
But if more of the heat could be extracted, then the supervolcano would never erupt. Nasa estimates that if a 35% increase in heat transfer could be achieved from its magma chamber, Yellowstone would no longer pose a threat. The only question is how?
One possibility is to simply increase the amount of water in the supervolcano. But from a practical perspective, it would likely be impossible to convince politicians to sanction such an initiative.
“Building a big aqueduct uphill into a mountainous region would be both costly and difficult, and people don’t want their water spent that way,” Wilcox says. “People are desperate for water all over the world and so a major infrastructure project, where the only way the water is used is to cool down a supervolcano, would be very controversial.”
Alternative Plan Continue reading NASA’s Ambitious Plan To Save Earth From A Supervolcano Eruption