Volcano

A giant big cone shape thing which explode with red substance oh! It's volcano and red substance is lava my guess ok let's start the topic .

In first paragraph I give you a childish meaning of volcano but the are not that childish really so , let's move to the topic there are about 1500 active volcano in the world but 1 in India which is very far but the volcano in the yellowstone national park located in wyoming ,montana, and idaho is the dangours threat to the world . If it blast If the supervolcano underneath Yellowstone National Park ever had another massive eruption, it could spew ash for thousands of miles across the United States, damaging buildings, smothering crops, and shutting down power plants. It'd be a huge disaster. But that doesn't mean we should all start freaking out. The odds of that happening are thankfully pretty low. The Yellowstone supervolcano — thousands of times more powerful than a regular volcano — has only had three truly enormous eruptions in history. One occurred 2.1 million years ago, one 1.3 million years ago, and one 664,000 years ago And a despite what you sometimes hear in the press, there's no indication that we're due for another "super-eruption" anytime soon. In fact, it's even possible that Yellowstone might never have an eruption that large again. Even so, the Yellowstone supervolcano remains an endless source of apocalyptic fascination — and it's not hard to see why. In September 2014, a team of scientists published a paper in Geochemistry, Geophysics, Geosystems exploring what a Yellowstone super-eruption might actually look like.

Among other things, they found the volcano was capable of burying states like Wyoming, Montana, Idaho, and Colorado in three feet of harmful volcanic ash — a mix of splintered rock and glass — and blanket the Midwest. That much ash could kill plants and animals, crush roofs, and short all sorts of electrical equipment: When I called up one of the study's co-authors, Jacob Lowenstern of the US Geological Survey, he stressed that the paper was not any sort of prediction of the future. "Even if Yellowstone did erupt again, you probably wouldn't get that worst-case scenario," he says. "What's much, much more common are small eruptions — that's a point that often gets ignored in the press." (And even those small eruptions are very rare.) On rare occasions throughout history, that magma chamber has erupted. The vast, vast majority of those eruptions in Yellowstone have been smaller lava flows — with the last occurring at Pitchstone Plateau some 70,000 years ago.

But the reason why Yellowstone gets so much attention is the remote possibility of catastrophic "super-eruptions." A super-eruption is anything that measures magnitude 8 or more on the Volcano Explosivity Index, in which at least 1,000 cubic kilometers (or 240 cubic miles) of material gets ejected. That's enough to bury Texas five feet deep.

These super-eruptions are thousands of times more powerful than even the biggest eruptions we're used to. Here's a chart from USGS comparing the Yellowstone super-eruptions with the Mt. St. Helens eruption of 1980. The difference is staggering: if you like my report on volcano then please review ,vote and share