What is a super volcano? Did a super volcano eruption wiped out the dinosaurs from the face of the Earth? Super volcanoes have erupted in the past and there is every possibility of a major volcano eruption ejecting enough dust and gases to cut out sunlight and precipitate a long winter.
Deep within the heartland of America in the North West is the Yellow Stone Super volcano. If it erupts, it has a potential to wipe out a major part of USA and could impact the climate of the planet for a very long time.
What is a super volcano exactly? Scientists define it as a volcano which could erupt with a force thousands of times greater than an ordinary volcano explosion. Mankind has been lucky since the planet has not had any super volcano explosion in the last few thousand years. The most recent eruption occurred 27,000 years ago in New Zealand. However mankind is not safe at least technically. A huge underground chamber hundreds of miles long sits deep below the Yellowstone National Park in Wyoming.
Though scientists are not able to predict when such a volcano will erupt, they are sure about one thing- it will push Earth to the verge of extinction. The effects will be drastic- 87000 people will be killed instantly and the rest will have to endure a long and painful death caused by the ensuing winter. Two thirds of US will be uninhabitable because of a 10 foot layer of ash which will spread 1000 miles around the volcano.
Once the plume rises and reaches the stratosphere, the sulfur oxides will combine with the water vapor to form sulfuric acid and will precipitate a volcanic winter.
The last eruption of the Yellowstone Super volcano happened nearly 640,000 years ago and the New World was devastated with the volcanic ash reaching as far as Louisiana, over 1,500 miles away.