An earthquake? According to monitoring services from the United States Geological Survey (USGS), 73 earthquakes have hit Yellowstone in the past 28 days Yellowstone National Park staff issue stern warning over bear capturesHow a volcanic eruption in Japan caused starvation in Europe No one really knows.
Patricia Gregg is a volcanologist at the University of Illinois at Urbana-Champaign. According to monitoring services from the United States Geological Survey (Portland State University Geology Professor Emeritus Scott Burns said: “If you get swarms under a working volcano, the working hypothesis is that magma is moving up underneath there.”Jamie Farrell at the University of Utah in Salt Lake City believes this is just part of the natural cycle for Yellowstone volcano, saying: “Earthquake swarms are fairly common in Yellowstone. LP earthquakes commonly occur at other volcanoes in the world, including volcanoes in California, that have not erupted for centuries or millennia. Copyright © 2019 Salon.com, LLC. In fact, these deposits were produced by two previously unrecognized super-eruptions. Since then, however, the pace of eruptions has slowed to once every 1.5 million years. Geologists find evidence of two new supervolcano eruptions at Yellowstone Their trends suggest that the next eruption won’t happen for a long time .
view in app- … Reproduction of material from any Salon pages without written permission is strictly prohibited. "Yellowstone's National Park Service said that the region usually has about 700 earthquakes a year.On the upper scale, Yellowstone can experience up to 3,000 quakes in a year.The USGS says: "Almost all earthquakes at Yellowstone are brittle-failure events caused when rocks break due to crustal stresses. This was Yellowstone's largest eruption on record.Yellowstone's ancient eruptions scattered volcanic debris across the northwestern US. The violence of the eruption triggered pyroclastic flows that devasted much of Lombok Island and even parts of the neighboring island of Sumbawa. A supervolcano is a large volcano that has had an eruption with a Volcanic Explosivity Index (VEI) of 8, the largest recorded value on the index. To get around this, volcanologists collected detailed identifying information, including chemical and chronological data, on each geological deposit. Some 8.7 million years ago, much of what is now Idaho was torched by clouds of hot volcanic ash, destroying all vegetation and animals in sight. Recognition of these events brings Yellowstone's total number of eruptions during the late Miocene to six. There are so many deposits — covering an area tens of thousands of square kilometers — that it can be difficult to tell each eruption apart. order back issues and use the historic Daily Express "The Yellowstone supervolcano, located in the US state of Wyoming, last erupted on a major scale 640,000 years ago.According to the USGS, the chances of a Yellowstone eruption is around one-in-730,000.With 640,000 years having passed since the last major eruption, Yellowstone is edging closer to exploding – but it could still be thousands of years away.However, experts are preparing for the worst now, and are studying how a major eruption, which could instantly wipe out large swathes of the US, could be prevented.One NASA employee believes he has found a unique way to stop a major eruption – by feeding cold water into Yellowstone’s magma chambers.NASA engineer Brian Wilcox hopes to stave off the threat of a super-eruption is to cool down the magma in the chambers inside the volcano.Around 60 to 70 percent of the heat generated by Yellowstone seeps into the atmosphere, but the remainder builds up inside. In addition to the famine which would ensue following the eruption of a supervolcano, Walsh takes care to point out that the ash itself is dangerous. Predicting eruptions is however a risky business, and the United States Geological Survey still maintain a permanent monitoring network on Yellowstone — just in case. If enough builds up, it can trigger an eruption.By drilling 10 kilometres into Yellowstone, the NASA employee believes that it would be possible to pump high-pressure water which will allow the cool liquid to absorb some of the heat, before it is pumped out again.Mr Wilcox told journalist Bryan Walsh in the latter’s new book End Times that the plan could cost $3.5bn (£2.9bn) and would have the added benefit of using the steam from the water and magma combo to create carbon-free geothermal electricity at a much cheaper rate than any alternative energy currently available on the market.Mr Wilcox told Mr Walsh: “The thing that makes Yellowstone a force of nature is that it stores up heat for hundreds of thousands of years before it all goes kablooey all at once. This video is about Volcano Eruptions 2020. “As a magma chamber of Yellowstone expands, it pushes the roof up and forms faults,” Gregg said in a statement. The youngest of the two, known as the Grey's Landing super-eruption, is dated to roughly 8.7 million years ago, and, according to the volume of debris released, is 30% larger than all other eruptions recorded from Yellowstone.
The supervolcano, Yellowstone, was erupting. It would be good if we drained away that heat before it could do a lot of damage.”Others, however, are not so convinced about the feasibility of Mr Wilcox’s idea.USGS scientist Jake Lowenstern told Mr Walsh: “It all seems a bit fanciful.” See today's front and back pages, download the newspaper, What triggers a supervolcano eruption? The eruption measured 7 on the Volcanic Explosivity Index, making it one of the largest volcanic eruptions in recorded history.
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