Yellowstone supervolcano eruption map

Yellowstone supervolcano is not gearing up to an eruption - but you wouldn't believe that if you typed "Yellowstone" into Google, Facebook or Twitter's search bar. Here's how to really find out if ...

Those stresses could trigger earthquakes as well as magma movement. Yellowstone lies within a tectonically active region of the western United States. Large earthquakes have occurred there in the past, like the 1959 M7.3 Hebgen Lake earthquake just west of Yellowstone National Park, and they will occur again in the future, but it is impossible ...Yellowstone National Park consists of three enormous calderas that erupted about 2, 1.2, and 0.6 million years ago. The most recent caldera is 45 km across and 75 km long! Caldera-forming eruptions are the largest eruptions on Earth. For example, the Fish Canyon eruption in southwestern Colorado about 28 million years ago erupted more than ...The most recent volcanic activity at Yellowstone consisted of rhyolitic lava flows that erupted approximately 70,000 years ago. The largest of these flows formed the Pitchstone Plateau in southwestern Yellowstone National Park. Learn more: Yellowstone Eruption History The evolution of the Yellowstone Plateau Volcani Field: Past, present, and future!YELLOWSTONE VOLCANO OBSERVATORY MONTHLY UPDATE U.S. Geological Survey Saturday, April 1, 2023, 9:49 AM MDT (Saturday, April 1, 2023, 15:49 UTC). YELLOWSTONE VOLCANO (VNUM #325010) 44°25'48" N 110°40'12" W, Summit Elevation 9203 ft (2805 m) Current Volcano Alert Level: NORMAL Current Aviation Color Code: GREEN. Recent Work and News. No eruptions of Steamboat Geyser were detected during the ...Before that, 2.1 million years ago, the Yellowstone system was the site of an even larger eruption, about 2,500 times larger than that of Mount St. Helens in 1980! Caldera-forming eruptions from the Yellowstone hotspot system have occurred repeatedly over the past 16 million years or so, with several of these eruptions being larger than that ...With a history dating back some 18 million years, the Yellowstone Supervolcano has erupted many times in the past, and may do so periodically. With a possible eruption periodicity of approximately 650,000 years, the last time the Yellowstone Supervolcano erupted, was approximately 650,000 years ago.Yellowstone's most recent volcanic eruption was a lava flow that formed the Pitchstone Plateau 70,000 years ago. Since the last "supereruption", rhyolite lava has filled in much of the Yellowstone caldera—the total flow volume is around 600 km 3 (140 mi 3), which would fill the Dallas Cowboy's AT&T stadium 200,000 times!!

Yellowstone Supervolcano Eruption Map - Yellowstone caldera eruption damage map. In august 2014, usgs scientists larry mastin and jacob. Yellowstone supervolcano eruption ash map. The yellowstone supervolcano last erupted about 640,000 years ago.Yellowstone Supervolcano Eruption MapA supervolcano is typically defined as a volcano that ejects at least 240 cubic miles of magma in one eruptionThe last super-eruption at Yellowstone volcano, which occurred 631,000 years ago, was not one huge explosion. Instead, new research suggests it was a series of eruptions or multiple vents spewing volcanic material in rapid succession. According to the U.S. Geological Survey's (USGS) Yellowstone Volcano Observatory 2022 Annual Report, published ...Beneath Yellowstone lies an active volcano with the ability to change the global climate for years and trigger an extinction event. Recent research reveals the most recent Yellowstone supervolcano ...February 22, 2023 4:30 am. The volcanic character of Yellowstone has long been known. An indigenous map drawn on a bison pelt indicating a volcano on the Yellowstone River was described by the governor of Louisiana Territory in an 1805 letter to Thomas Jefferson. The first formal geological studies of the region, however, were not undertaken ...That eruption, which caused collapse of the surface and created a caldera that is now largely filled by Lake Taupō, was even larger than the eruption that formed Yellowstone Caldera 631,000 years ago! After the Oruanui eruption, 28 additional but smaller eruptions of ash and lava occurred, 25 of which took place in the past 12,000 years.YELLOWSTONE VOLCANO "fully intends to erupt again," according to a documentary which identified a sign of the supervolcano's "power" still seen today. By Callum Hoare 11:57, Fri, Jan 22, 2021 ...

Map panels showing the distribution of major caldera-forming ash-flow deposits from the three major caldera-forming eruptions on the Yellowstone Plateau Volcanic Field. Updated from Christiansen, 2001 (USGS PP 729-G) with new age information. (Credit: Lisa Morgan, USGS . Public domain.) The current YPVF has seen three cataclysmic caldera-formingThe Yellowstone Caldera is the volcanic caldera located in Yellowstone National Park in the United States, sometimes referred to as the Yellowstone Supervolcano. The caldera is located in the northwest corner of Wyoming, in which the vast majority of the park is contained. The major features of the caldera measure about 34 by 45 miles. The last full-scale eruption of the Yellowstone ...While some have suggested Yellowstone is 'due' to erupt, the apparent cycle of an eruption every 725,000 years means there are still another 100,000 years to go. Related articlesThis eruption 2.1 million years ago—among the largest volcanic eruptions known to man—coated 5,790 square miles with ash, as far away as Missouri. The total volcanic material ejected is estimated to have been 6,000 times the volume of material ejected during the 1980 eruption of Mt. St. Helens, in Washington.YELLOWSTONE VOLCANO OBSERVATORY MONTHLY UPDATE U.S. Geological Survey Tuesday, November 1, 2022, 10:54 AM MDT (Tuesday, November 1, 2022, 16:54 UTC). YELLOWSTONE VOLCANO (VNUM #325010) 44°25'48" N 110°40'12" W, Summit Elevation 9203 ft (2805 m) Current Volcano Alert Level: NORMAL Current Aviation Color Code: GREEN. Recent Work and News. October saw the end of major field work in Yellowstone ...

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Yellowstone: Expert reveals what would happen in an eruption Trending And since then, the volcano has belched large quantities of molten rock between 180,000 and 70,000 years ago.A supervolcano is an eruption that rates a magnitude of 8 on the Volcanic Explosivity Index. The VEI is a scale that rates eruptions on their ejecta volume, plume height and duration. The scale ranges from 0 through 8. Only a few dozen eruptions in all of Earth's history are known to have a VEI of 8.The last eruption of the Yellowstone supervolcano was about 70,000 years ago; no one knows for sure when the sleeping giant will next wake up.September 22, 2014 at 7:00 am. A new simulation illustrates the explosiveness of the volcano that lurks beneath Yellowstone National Park in Wyoming. Around 640,000 years ago, the volcano blew its ...US Geological Survey. 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 ...The number of annual eruptions has been declining since reaching peaks of 48 eruptions in 2019 and 2020, however, raising the possibility that the current period of numerous eruptions may be coming to an end. This is a map of seismicity (red circles) in the Yellowstone region during 2022.

Impact of an Eruption of the Super Volcano. If Yellowstone really blew its top, scientists estimate that much of the United States and western Canada would be uninhabitable. Lava, poisonous gases, and a potential ten-foot layer of ash would cover the ground up to 1,000 miles away. ... Plans and maps for evacuation to a distant region of the ...The Yellowstone supervolcano is a natural disaster that we cannot prepare for, it would bring the world to its knees and destroy life as we know it. This Yellowstone Volcano has been dated to be as old as 2,100,000 years old, and throughout that lifetime has erupted on average every 600,000-700,000 years. The last eruption took place …New Zealand's Taupō was the last supervolcano to erupt, and that happened 26,500 years ago. A lake now lies in its massive caldera - the depression that forms when a volcano erupts and ...At the heart of Yellowstone’s past, present, and future lies a SUPERVOLCANO. Huge volcanic eruptions occurred here, the latest about 631,000 years ago. The center of what is now the park collapsed, forming a 30- by 45-mile caldera, or basin. The heat powering those eruptions still fuels the park’s geysers, hot springs, …A YELLOWSTONE volcano eruption could potentially trap or displace millions of people caught in the direct volcanic kill zone, scientists have warned. By Sebastian Kettley 11:44, Sat, Apr 7, 2018There is more melted rock under Yellowstone Caldera - a volcano in Wyoming - than was previously estimated, but that doesn't change the likelihood of an eruptionJun 9, 2023 · A long-slumbering "supervolcano" in Italy is getting closer to a potential eruption for the first time since 1538, a new study warns — and the consequences could be catastrophic. The Hatepe eruption (also known as the Taupō or Horomatangi Reef Unit Y eruption) represents the most recent major eruption of the Taupō Volcano, and occurred about 1,800 years ago. It was the most powerful eruption in the world in the last 5,000 years. ... First map showing volcanic nature of Lake Taupō shoreline.Map of the known ash-fall boundaries for major eruptions from Long Valley Caldera, Mount St. Helens and Yellowstone. (USGS) If another catastrophic eruption from Yellowstone were to happen, the ...Dragon's Mouth in the Mud Volcano Area of Yellowstone National Park. Kiowa, Blackfeet, Cayuse, Coeur d'Alene, Shoshone, Nez Perce, and other tribes are all believed to have explored and utilized the park for its abundant resources during some point in their recent history, within the past several hundred years.

Yellowstone has erupted violently three times in recent geological history: 2.1 million years ago, 1.3 million years ago, and 640,000 years ago. A new eruption cannot be ruled out. The last time ...

The event was the largest explosion ever from the supervolcano in Yellowstone National Park. And scientists just found out about it. A recent study published in Geology identified evidence for ...It’s not well-known that the seemingly placid Yellowstone supervolcano is the world's largest volcano and is considered by some studies as the most dangerous volcano in the world. The caldera is a massive 25 miles x 37 miles (40 km x 60 km) in diameter and was formed after the last Yellowstone eruption about 640,000 years ago.Blasts from the Past. The first major eruption of the Yellowstone volcano, which occurred 2.1 million years ago, is among the largest volcanic eruptions known, covering over 5,790 square miles with ash. The most recent m ajor eruption, 640,000 years ago, caused the ground to collapse into the magma reservoir, leaving a giant caldera.Yellowstone Supervolcano: With John Beach. Beneath the spectacular beauty of Yellowstone National Park lies a ticking time bomb...a supervolcano that's overdue for its next eruption. When that day inevitably comes, it will trigger the end of civilization as we know it. See how recent earthquake swarms and other signals of activity have put scientists on high alert for a large-scale super ...It's believed that Yellowstone, which is a super volcano of epic proportions, erupts every 600,000 to 800,000 years, on average. That's based on three large explosions which have occurred over the last 2.1 million years. The last of those three massive eruptions happened about 631,000 years ago which, if our math is correct, sort of feels ...There have been several super eruptions of the Yellowstone Hot Spot in the last 12 million years. These eruptions dwarf the massive eruptions of Mount Tambora, Toba, and especially Mount St. Helens. With an eruption of such intensity, there are several risks and implications for emergency managers to consider in responding to such an event.Nov 3, 2022 · Yellowstone Caldera. A map of Yellowstone National Park, Wyoming, shows the outline of the caldera of the massive Yellowstone supervolcano. The Yellowstone supervolcano last erupted about 640,000 years ago. Illustration by NGM Maps. Overview. The last super-eruption at Yellowstone volcano, which occurred 631,000 years ago, was not one huge explosion. Instead, new research suggests it was a series of eruptions or multiple vents spewing ...

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The 50-square-mile stretch of Yellowstone National Park that spills over Idaho 's border is a legal no-man's land. It's an isolated spot, one devoid of roads or any permanent human ...Based on past research and the general location of the volcano itself, the blast radius of Yellowstone's calderas is quite large. When it comes to lava and magma flows spewing forth from this volcanic eruption, Yellowstone National Park would likely need to evacuate everyone within a 40 to 50 mile radius. Keep in mind that this evacuation ...Nestled among the Cascade mountain range sits Mount Rainier, a postcard-perfect natural wonder—and a volcano that causes scientists genuine concern. It's unclear when it will stir from its ...Yellowstone volcano: A possible eruption fallout map for Yellowstone (Image: EXPRESS) Dr Poland's third reason for not calling Yellowstone a supervolcano is the term is often "misapplied" to ...The term "supervolcano" implies an eruption of magnitude 8 on the Volcano Explosivity Index, indicating an eruption of more than 1,000 cubic kilometers (250 cubic miles) of magma. BBC Science and Discovery Channel produced the docudrama called "Super-Volcano," followed by the documentary, "Supervolcano: The Truth About Yellowstone.".The most recent “super eruption” on Earth was from the Taupō volcanic system on the North Island of New Zealand. About 26,500 years ago, an eruption with a volume of approximately 1200 km 3 (288 mi 3) occurred there. As you can see, the formation of Yellowstone caldera 631,000 years ago isn’t the record holder in terms of global …An eruption 40,000 years ago may have wiped out Neanderthals, according to a 2010 report that is hotly debated. Phlegrean Fields last blew in 1538, an eight-day eruption that created the 440-foot ...Yellowstone Volcano Observatory's Webcam at Yellowstone Lake. The camera view is south-southeast over Yellowstone Lake from the cell phone tower near Fishing Bridge. Stevenson Island is visible within the lake on the right. The view extends down the Southeast Arm between the Promontory (low ridge rising from the lake) and the eastern shore.The Yellowstone Volcano Observatory (YVO) is a consortium of nine state and federal agencies who provide timely monitoring and hazard assessment of volcanic, hydrothermal, and earthquake activity in the Yellowstone Plateau region. The USGS arm of YVO is also responsible for monitoring and reporting on volcanic activity in the intermountain west ... Jan 3, 2023 · Photo of the Grand Prismatic Spring at Yellowstone's Midway Geyser Basin. The National Park is one of the most seismically active areas of the U.S. RomanKhomlyak/Getty A supervolcano is one ... Apr 7, 2018 · Yellowstone volcano eruption: Ash fallout would coat the US from coast to coast Zone One would extend up to 80km from the eruption, blasting the ground with sweltering hot gases and up to 3m of ... 1-888-392-8545. answers.usgs.gov. The science of forecasting a volcanic eruption has significantly advanced over the past 25 years. Most scientists think that the buildup preceding a catastrophic eruption would be detectable for weeks and perhaps months to years. Precursors to volcanic eruptions include strong earthquake swarms and rapid ground ... ….

To be clear, the new research does not indicate that the supervolcano that created Yellowstone's caldera—which last erupted 640,000 years ago—is any more likely to erupt now.Compared to more recent volcanic events, it was 5,000 times larger than the eruption at Mount St. Helen's in 1980. Brigham Young University researchers found out about Wah Wah Springs only in 2013.Long Valley sits next to Mammoth Mountain and is one of the world's largest calderas — a huge, cauldron-like hollow that forms after an eruption.. It measures a whopping 20 miles long and 11 ...Yellowstone National Park's supervolcano just took a deep "breath," causing miles of ground to rise dramatically, scientists report.. The simmering volcano has produced major eruptions—each a ...Millions of U.S. citizens could end up in Brazil, Australia, or Argentina if the Yellowstone supervolcano erupts, it has been claimed. South African news website Praag claims the African National ...YELLOWSTONE VOLCANO (VNUM #325010) 44°25'48" N 110°40'12" W, Summit Elevation 9203 ft (2805 m) Current Volcano Alert Level: NORMAL Current Aviation Color Code: GREEN. Recent Work and News. Steamboat Geyser did not have a major eruption in September, but minor eruptions starting in late September indicate that the geyser is likely to erupt in ...YELLOWSTONE VOLCANO (VNUM #325010) 44°25'48" N 110°40'12" W, Summit Elevation 9203 ft (2805 m) Current Volcano Alert Level: NORMAL Current Aviation Color Code: GREEN. Recent Work and News. Steamboat Geyser did not have a major eruption in September, but minor eruptions starting in late September indicate that the geyser is likely to erupt in ...—Newly discovered Yellowstone eruption is one of 'top 5 eruptions of all time' —Yellowstone volcano super-eruptions appear to involve multiple explosive events —Secrets of 'mystery sandwich' beneath Yellowstone revealed in new map. The unrest could also be due to more water seeping into the underground chambers.The most recent eruption at the Yellowstone supervolcano happened 630,000 years ago, which Knott said suggests "we may have up to 900,000 years before another eruption of this scale occurs ...If the Yellowstone supervolcano were to erupt, it would happen like this: Heat rising from deep within the planet's core would begin to melt the molten rock just below the ground's surface. That would create a mixture of magma, rocks, vapor, carbon dioxide and other gases. As the mix amassed and rose over thousands of years, the pressure ... Yellowstone supervolcano eruption map, The Yellowstone supervolcano is a natural disaster that we cannot prepare for, it would bring the world to its knees and destroy life as we know it. This Yellowstone Volcano has been dated to be as old as 2,100,000 years old, and throughout that lifetime has erupted on average every 600,000-700,000 years. Advertisement., The 1912 Novarupta eruption in Alaska, the largest volcanic eruption of the 20th century, ejected 15 km 3 of magma over about 52 h [Hildreth, 1983]. ... 2014). Although a modern Yellowstone eruption may interact with external water (e.g., the 350 km 2 Yellowstone Lake) magma-water ratios would likely be higher than in the 2009 ..., What about the maps showing Yellowstone deposits across the U.S.? Don't they indicate where ash will go? No. They show an outline of the area where ashhas been found from the previous big eruptions at Yellowstone (640,000, 1,300,000, and 2,100,000 years ago). , A supervolcano is a volcano that has had an eruption with a Volcanic Explosivity Index (VEI) of 8, the largest recorded value on the index. This means the volume of deposits for such an eruption is greater than 1,000 cubic kilometers (240 cubic miles). Location of Yellowstone hotspot over time. Numbers indicate millions of years before the present., Scientists working in and around Yellowstone National Park say that the supervolcano sitting under the tourist attraction may blow sooner than thought, an eruption that could wipe out life on the ..., The bad news is that the super volcano will erupt and will likely destroy much of the United States. The good news is it isn't likely to happen any time soon. Michael Poland, the scientist-in ..., YELLOWSTONE VOLCANO OBSERVATORY MONTHLY UPDATE U.S. Geological Survey Monday, May 1, 2023, 9:50 AM MDT (Monday, May 1, 2023, 15:50 UTC). YELLOWSTONE VOLCANO (VNUM #325010) 44°25'48" N 110°40'12" W, Summit Elevation 9203 ft (2805 m) Current Volcano Alert Level: NORMAL Current Aviation Color Code: GREEN. Recent Work and News. No eruptions of Steamboat Geyser were detected during the month of ..., The last super-eruption at Yellowstone volcano, which occurred 631,000 years ago, was not one huge explosion. Instead, new research suggests it was a series of eruptions or multiple vents spewing volcanic material in rapid succession. According to the U.S. Geological Survey's (USGS) Yellowstone Volcano Observatory 2022 Annual Report, published ..., On rare occasions throughout history, the supervolcano's magma chamber has erupted. The overwhelming majority of those eruptions in Yellowstone have been smaller lava flows — with the last ..., A widely accepted measure of the size of an eruption is the volume of lava ejected as pumice and ash (tephra) during an explosive phase or the volume of lava extruded during an effusive phase. Eruption volumes are commonly expressed in cubic kilometers (km3). One km3 is roughly equivalent to 0.24 cubic mile. Estimates of the tephra volumes are ..., Find me on Substack: https://geographybygeoff.substack.com/Follow me on Instagram: https://www.instagram.com/geographybygeoff/Listen to the podcast: https://..., The 13,000-foot-high volcano eruption in November did not threaten communities this time as the lava flow pointed in another direction. ... Unlike Yellowstone, the Hawaii volcano's eruptions aren ..., Jul 5, 2019 · Cerro Guacha – Image Credit : Google Maps. 4 – Yellowstone Caldera. The Yellowstone Caldera is a volcanic caldera and supervolcano in Yellowstone National Park in the Western United States, sometimes referred to as the Yellowstone Supervolcano. The caldera and most of the park are located in the northwest corner of Wyoming. , There have been several super eruptions of the Yellowstone Hot Spot in the last 12 million years. These eruptions dwarf the massive eruptions of Mount Tambora, Toba, and especially Mount St. Helens. With an eruption of such intensity, there are several risks and implications for emergency managers to consider in responding to such an event., The Norris Geyser Basin in Yellowstone National Park, Wyoming, is evidence of the simmering volcanic activity that geologists say one day could erupt as a devastating "supervolcano." (Beth Harpaz ..., Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. ... The number of annual eruptions has been declining since reaching peaks of 48 eruptions in both 2019 and 2020, however, raising the possibility that the current period of numerous eruptions may be coming to an end ..., In fact, 2020 was the third year in a row with less than 2000 located earthquakes. The largest earthquake of the year was a three-way tie, with M3.1 events occurring in March, May, and November, all in the area between Norris Geyser Basin in Yellowstone National Park and Hebgen Lake, Montana. There were also 23 swarms of earthquakes in ..., Volcanic activity began in the Yellowstone National Park region a little before about 2 million years ago. Molten rock (magma) rising from deep within the Earth produced three cataclysmic eruptions more powerful than any in the world's recorded history. The first caldera-forming eruption occurred about 2.1 million years ago., Kilauea Advisory Level = ADVISORY Aviation Color Code = YELLOW.As of 2023-10-07 18:58:22 UTC, HVO Kilauea YELLOW/ADVISORY - Kīlauea volcano is not erupting.The area south of Kīlauea's summit is showing signs of unrest. HVO continues to monitor for changes. Change to current status on 2023-09-17 19:02:24 UTC from Alert Level …, These eruptions have been erratic, with gaps between each major outburst lasting anywhere from four days to 50 years. ... Since detailed observations of the park's underlying supervolcano's ..., Found in the state of Wyoming, the supervolcano in Yellowstone National Park was formed by an eruption 640,000 years ago and is one of the largest in the world at a huge 30 by 45 miles., During the 9 hours of vigorous eruptive activity on May 18, 1980, about 540 million tons of ash from Mount St. Helens fell over an area of more than 22,000 square miles (57,000 square kilometers)., That's because much of the entire park is a volcano - and the bubbling geysers and hot springs are an indication of the churning activity below the surface. Yellowstone Supervolcano. Yellowstone Caldera Map of the Yellowstone Caldera (purple border) with older calderas (green border) (Photo: Wikimedia Commons Public Domain), The Yellowstone supervolcano is a natural disaster that we cannot prepare for, it would bring the world to its knees and destroy life as we know it. This Yellowstone Volcano has been dated to be as old as 2,100,000 years old, and throughout that lifetime has erupted on average every 600,000-700,000 years. Advertisement., Yellowstone is not the only large caldera system in the world. Indeed, caldera systems can be found all over the planet! In New Zealand, the Taupō caldera system shares many similarities with Yellowstone—a history of large eruptions, geysers and hot springs, and even earthquake swarms and ground deformation, some of which might be related to magmatic intrusions., Yellowstone Supervolcano Eruption MapIntroduction Yellowstone National Park is one of the most popular tourist destinations in the United States. Home to the famous Old Faithful geyser, Yellowstone offers visitors a chance to experience stunning natural beauty, unique wildlife, and a wealth of outdoor activities. However, the park is also home to a massive supervolcano that, The term "supervolcano" implies a volcanic center that has had an eruption of magnitude 8 on the Volcano Explosivity Index (VEI), meaning that at one point in time it erupted more than 1,000 cubic kilometers (240 cubic miles) of material. In the early 2000s, the term "supereruption" began being used as a catchy way to describe VEI 8 eruptions., The Yellowstone supervolcano is one of the most volatile places on Earth. With its 72 km distance and one of the largest magma calderas on the planet, this supervolcano represents one of the greatest risks in America. An eruption of the Yellowstone supervolcano would mean a real geological change for a large part of the planet., In the past Yellowstone's Supervolcano has had enormous eruptions, more than 1,000 times more powerful than the 1980 eruption at Mount St. Helens. Subscribe to newsletters Subscribe for $1/week, The biggest of the Yellowstone eruptions occurred 2.1 million years ago, depositing the Huckleberry Ridge ash bed. These eruptions left behind huge volcanic depressions called "calderas" and spread volcanic ash over large parts of North America (see map). If another large caldera-forming eruption were to occur at Yellowstone, its effects would ..., Beneath the spectacular beauty of Yellowstone National Park lies a ticking time bomb...a supervolcano that's overdue for its next eruption. When that day inevitably comes, it will trigger the end of civilization as we know it. See how recent earthquake swarms and other signals of activity have put scientists on high alert for a large-scale ..., On May 24, 2023, observers on Geyser Hill in Yellowstone National Park's Upper Geyser Basin, near Old Faithful, witnessed something that hadn't been seen for two years: an eruption of Aurum Geyser. This medium-sized but charismatic geyser lies at a bend of the boardwalk that circles Geyser Hill, in front of a shallow pool filled with ..., But triggering an eruption of magma from Yellowstone is not easy—no eruptions have happened in the past 70,000 years despite numerous strong earthquakes in the region. An eruption will occur only when there is a quantity of liquid magma in the subsurface and sufficient pressure to get that magma to ascend to the surface.