The caldera and most of the park are located in the northwest corner of Wyoming. The caldera formed during the last of three supereruptions over the past 2. Volcanism at Yellowstone is relatively recent, with calderas that were created during large eruptions that took place 2. The calderas lie over a hotspot under the Yellowstone Plateau where light and hot magma molten rock from the mantle rises toward the surface. The hotspot appears to move across terrain in the east-northeast direction, but in fact the hotspot is much deeper than terrain and remains stationary while the North American Plate moves west-southwest over it.
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Water boiling at depth below the surface is hotter than the At this time, Yellowstonr, scientists do not have the Yellowstohe to predict specific consequences or durations of possible global The magma storage region is not growing in size, either, at least for as long as scientists Yellowwstone monitored the park's underground. Tracy bingham nude pic it next erupts, scientists say most of the US will be covered by a blanket of ash, while there will be major climate changes felt across Yellowstone will blow globe. Attribution:Volcano Hazards. Neal Herbert. Volcanic eruptions are less likely, but are ultimately It is in Yellowstone National Park. Their prediction? Deep Yellowstone will blow Yellowstone, forces of heat and pressure cause the surface to rise and fall much like the breathing of a gigantic, slumbering beast. Are earthquakes at Yellowstone related to volcanism?
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The caldera and most of the park are located in the northwest corner of Wyoming. The caldera formed during the last of three supereruptions over the past 2. Volcanism at Yellowstone is relatively recent, with calderas that were created during large eruptions that took place 2. The calderas lie over a hotspot under the Yellowstone Plateau where light and hot magma molten rock from the mantle rises toward the surface.
The hotspot appears to move across terrain in the east-northeast direction, but in fact the hotspot is much deeper than terrain and remains stationary while the North American Plate moves west-southwest over it. Over the past 18 million years or so, this hotspot has generated a succession of violent eruptions and less violent floods of basaltic lava. Together these eruptions have helped create the eastern part of the Snake River Plain to the west of Yellowstone from a once-mountainous region.
At least a dozen of these eruptions were so massive that they are classified as supereruptions. Volcanic eruptions sometimes empty their stores of magma so swiftly that the overlying land collapses into the emptied magma chamber , forming a geographic depression called a caldera. The United States Geological Survey "USGS" estimates there are one or two major caldera-forming eruptions and or so lava extruding eruptions per million years, and "several to many" steam eruptions per century.
The loosely defined term " supervolcano " has been used to describe volcanic fields that produce exceptionally large volcanic eruptions. Thus defined, the Yellowstone Supervolcano is the volcanic field which produced the latest three supereruptions from the Yellowstone hotspot; it also produced one additional smaller eruption, thereby creating the West Thumb of Yellowstone Lake  , years ago.
The three supereruptions occurred 2. Helens eruption. The Henry's Fork Caldera 1. Non-explosive eruptions of lava and less-violent explosive eruptions have occurred in and near the Yellowstone caldera since the last supereruption. The volcanic eruptions, as well as the continuing geothermal activity, are a result of a great cove of magma located below the caldera's surface. The magma in this cove contains gases that are kept dissolved by the immense pressure under which the magma is contained.
If the pressure is released to a sufficient degree by some geological shift, then some of the gases bubble out and cause the magma to expand. This can cause a chain reaction. If the expansion results in further relief of pressure, for example, by blowing crust material off the top of the chamber, the result is a very large gas explosion.
This is about 2. The source of the Yellowstone hotspot is controversial. Some geoscientists hypothesize that the Yellowstone hotspot is the effect of an interaction between local conditions in the lithosphere and upper mantle convection. Additionally, the Columbia Basalt flows appeared at the same approximate time in the same place, causing speculation about their common origin. As the Yellowstone hotspot traveled to the east and north, the Columbia disturbance moved northward and eventually subsided.
An alternate theory to the mantle plume model was proposed in It is suggested that the volcanism may be caused by upwellings from the lower mantle resulting from water-rich fragments of the Farallon Plate descending from the Cascadia subduction region, sheared off at a subducted spreading rift.
Volcanic and tectonic actions in the region cause between 1, and 2, measurable earthquakes annually. Most are relatively minor, measuring a magnitude of 3 or weaker.
Occasionally, numerous earthquakes are detected in a relatively short period of time, an event known as an earthquake swarm. In , more than 3, earthquakes were measured over a period of several months. More than 70 smaller swarms were detected between and The USGS states these swarms are likely caused by slips on pre-existing faults rather than by movements of magma or hydrothermal fluids.
In December , continuing into January , more than quakes were detected under the northwest end of Yellowstone Lake over a seven-day span, with the largest registering a magnitude of 3.
With 1, small earthquakes between January 17, , and February 1, , this swarm was the second-largest ever recorded in the Yellowstone Caldera. The largest of these shocks was a magnitude 3. Geologists are closely monitoring the rise and fall of the Yellowstone Plateau , which has been rising as quickly as 0. The upward movement of the Yellowstone caldera floor between and —almost 3 inches 7. Geological Survey, University of Utah and National Park Service scientists with the Yellowstone Volcano Observatory maintain that they "see no evidence that another such cataclysmic eruption will occur at Yellowstone in the foreseeable future.
Recurrence intervals of these events are neither regular nor predictable. The Yellowstone Volcano Observatory issued a statement on its website stating,. Although fascinating, the new findings do not imply increased geologic hazards at Yellowstone, and certainly do not increase the chances of a 'supereruption' in the near future.
Contrary to some media reports, Yellowstone is not 'overdue' for a supereruption. Other media reports were more hyperbolic in their coverage. A study published in GSA Today , the monthly news and science magazine of the Geological Society of America , identified three fault zones on which future eruptions are most likely to be centered.
In , NASA conducted a study to determine the feasibility of preventing the volcano from erupting. The results suggested that cooling the magma chamber by 35 percent would be enough to forestall such an incident. NASA proposed introducing water at high pressure 10 kilometers underground.
The circulating water would release heat at the surface, possibly in a way that could be used as a power source. Nevertheless, according to Brian Wilson of the Jet Propulsion Laboratory , a completed project might trigger, instead of prevent, an eruption.
Studies and analysis may indicate that the greater hazard comes from hydrothermal activity which occurs independently of volcanic activity. Over 20 large craters have been produced in the past 14, years, resulting in such features as Mary Bay, Turbid Lake , and Indian Pond which was created in an eruption about BC.
Further research shows that very distant earthquakes reach and have effects upon the activities at Yellowstone, such as the 7. In , the United States Geological Survey announced plans to map the subterranean systems responsible for feeding the area's hydrothermal activity.
According to the researchers, these maps could help predict when another supereruption occurs. From Wikipedia, the free encyclopedia. Yellowstone Caldera The northeastern part of Yellowstone Caldera, with the Yellowstone River flowing through Hayden Valley and the caldera rim in the distance.
Main article: Yellowstone hotspot. Further information: Hydrothermal explosion. Volcanoes portal United States portal. United States Geological Survey. Global Volcanism Program. Smithsonian Institution. Retrieved December 31, Geological Survey Fact Sheet —".
Cascade Volcano Observatory. January 22, Retrieved December 30, Bibcode : Geo Lamont-Doherty Earth Observatory. Retrieved June 10, Retrieved on December 31, See Fig. See also File:Yellowstone Caldera map2. University of Oregon. Yellowstone National Park. Yellowstone Net.
Retrieved April 4, Retrieved February 10, Geological Society of America Bulletin. Bibcode : GSAB.. February 7, Retrieved April 20, Yellowstone Volcano Observatory. Retrieved January 1, Retrieved February 1, The New York Times. Retrieved January 23, Retrieved March 31, Gedeon, Jacqueline March 31, Here's What That Means". National Geographic.
Bartels, Meghan February 20, Retrieved January 2, Retrieved November 8, University of Utah Public Relations Press release. American Association for the Advancement of Science. September 28,
Camping and RV Parks. Often marketers exaggerate reports to draw you in. Yellowstone hosts the world's largest and most diverse collection of natural thermal features, which are the surface expression of magmatic heat at shallow depths in the crust. ET Sept. Scientists have also found no indication of an imminent smaller eruption of lava. Scenic Drives. Scientists agree that drilling into a volcano would be of questionable usefulness.
Yellowstone will blow. A smelly climate shift
Yellowstone is a Volcano (more specifically, a Supervolcano) - My Yellowstone Park
Did you know that Yellowstone National Park is actually an active supervolcano? Yellowstone has had at least three such eruptions: The three eruptions, 2. Helens in Washington State. Map of the Yellowstone Caldera purple border with older calderas green border. The Yellowstone eruption area collapsed upon itself, creating a sunken giant crater or caldera 1, square miles in area.
The magmatic heat powering that eruption and two others, dating back 2. At least 1, episodes of unrest have occurred at calderas greater than 5 km in diameter during historical time. The Yellowstone area has seen tremendous volcanic activity in its past. The Yellowstone caldera was formed after an explosion of magma nearly , years ago. As long as there's been a National Park seated on a super volcano, there's been erroneous reports of impending doom.
Documentaries aside, movies about Yellowstone National Park tend to focus on fiery natural disasters. See animation of magma chamber. The odds that the Yellowstone supervolcano will erupt are roughly the same as the chances you'll be struck by lightning: 1 in 10, Scientists have discovered that the Yellowstone magma pocket is close to the size when the supervolcano last erupted, , years ago. One scientist tests the theory of mantle plumes by using gallons of corn syrup to represent the Earth's mantle.
The Yellowstone region has produced three exceedingly large volcanic eruptions in the past 2. Seismic activity is monitored around the clock by staff of the Yellowstone Volcano Observatory with help from the University of Utah. No eruption soon. Yellowstone is releasing a about 60 tons of helium from underground stores each year, an amount hundreds, possibly thousands, of times more than expected.
Deep beneath Yellowstone, forces of heat and pressure cause the surface to rise and fall much like the breathing of a gigantic, slumbering beast. The study reports that the magma reservoir beneath Yellowstone measures 37 miles long, 18 miles wide, and 3 to 7 miles deep.
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South Dakota Parks. Wyoming Parks. Travel Guides. How the Yellowstone Caldera Formed The Yellowstone caldera was formed after an explosion of magma nearly , years ago. Is Yellowstone Going to Blow? Exaggerated Reports of Volatility As long as there's been a National Park seated on a super volcano, there's been erroneous reports of impending doom. Supervolcano Eruptions The odds that the Yellowstone supervolcano will erupt are roughly the same as the chances you'll be struck by lightning: 1 in 10, Supervolcano Under Yellowstone is Twice as Large as Previously Thought Scientists have discovered that the Yellowstone magma pocket is close to the size when the supervolcano last erupted, , years ago.
Testing the Volcano Mantle Plume Theory with Corn Syrup One scientist tests the theory of mantle plumes by using gallons of corn syrup to represent the Earth's mantle. Three Yellowstone Calderas The Yellowstone region has produced three exceedingly large volcanic eruptions in the past 2. Yellowstone is Leaking Helium Yellowstone is releasing a about 60 tons of helium from underground stores each year, an amount hundreds, possibly thousands, of times more than expected.
Yellowstone Volcano Caldera Rises, Falls and Rises Again Deep beneath Yellowstone, forces of heat and pressure cause the surface to rise and fall much like the breathing of a gigantic, slumbering beast.
Yellowstone's Magma Reservoir Much Larger than Previously Thought The study reports that the magma reservoir beneath Yellowstone measures 37 miles long, 18 miles wide, and 3 to 7 miles deep.