The Caldera supervolcano is 50 miles long, 12 miles wide, with a chamber of molten rock that goes seven miles deep.
In the last two months, there’s been a swarm of more than 1,400 earthquake tremors in the region around the volcano. Seismologists expect the tremors to continue for at least a month. They’re trying to reassure local residents there’s no need for immediate concern.
Jamie Farrell at the University of Utah in Salt Lake City told New Scientist: “This is a large swarm but it is not the largest swarm we’ve recorded in Yellowstone. There is no indication that this swarm is related to magma moving through the shallow crust.”
If the supervolcano does blow, just how bad could it be?
A massive eruption of the Yellowstone Caldera volcano could be the single worst natural disaster in human history.
Scientists estimate that 87,000 people would be killed immediately and two-thirds of the continental United States could become completely uninhabitable from the ash spewed into the atmosphere.
The large spew of ash into the atmosphere would block out sunlight and directly affect life beneath it creating a “nuclear winter” and threatening ALL life on earth.”
In terms of perspective, a Caldera eruption could be 6,000 times worse than the 1980 eruption of Mount St. Helens in Washington state, which killed 57 people and deposited ash in 11 different states and five provinces in Canada.
Talk about genuine climate change! Because the volcano could send massive amounts of sulphur dioxide into the atmosphere, a sulphur aerosol that reflects and absorbs sunlight would dramatically shift climate worldwide.
What has local residents so on edge is that, in early June, the largest earthquake in Montana in 34 years occurred along the same fault line as Yellowstone. The 5.4 tremor convinced many in the area that the Caldera volcano is getting ready to blow.
In the past, experts at the U.S. Geological Survey have put the odds of a major eruption at the Yellowstone Caldera volcano at one in 730,000.
As the tremors continue to be felt in Montana and Wyoming in the area in and around Yellowstone National Park, local residents will continue to fear the worst.
Source: Daily Express