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The supervolcano is part of what is known as a caldera, an underground volcano forming a shape like a cauldron. More accurate details about the caldera were discovered by measuring the seismic waves of the underground magma which is anywhere from 3 to 9 miles beneath the surface of the earth. The length of the caldera is 88.5 km (~50 miles) with a width of 29 km (~18 miles). The lead author of the study, Jamie Farrell, claims the quantity of lava in the supervolcano is enough to give rise to what would be among the top three eruptions over the past 2.1 million years.
I saw a pretty cool video a day or two ago about the Great Plains of Africa. They were saying that only one type of tree was prevalent there due to ash deposits from previous volcanic activity.
I wonder how much impact That would have if Yellowstone erupted.
The true cause of "The Year Without Summer," as 1816 came to be known, lay half the world away on the island of Subawa, near Java in Indonesia.
Mount Tambora erupted in April 1815 with such force that the British governor of the area, Sir Thomas Stamford Raffles, dispatched troops to investigate the loud noises he believed to be cannonfire. Tambora was thought to be extinct, but the 1815 eruption ranks as one of the four strongest in the last 10,000 years.
It was roughly 100 times more powerful than Mount Saint Helens in 1980.
Within 24 hours, the ash cloud had grown to the size of Australia; Tambora produced enough ash to cover Vermont to a depth of 12 feet. As the streams of molten lava ploughed into the ocean, the force generated tsunami waves up to 15 feet high.
The rapidly cooling lava produced fields of floating pumice stone; some were three miles wide. Between 70,000 and 90,000 people died in Indonesia in the eruption and its aftermath, many from famine when the ash poisoned their crops.
This is why we need to constantly keep an eye out on ALL super volcanoes, even if they are deemed dormant/extinct And yes, we had better be prepared in a SHTF scenario, although many people/animals would die in a situation like that