How much damage would a super volcano do?
The eruption could be expected to kill as many as 90,000 people immediately and spread a 10-foot (3-meter) layer of molten ash as far as 1,000 miles (1,609 kilometers) from the park. Rescuers probably would have a tough time getting in there.
Tambora – Indonesia - 1815
The eruption reached its peak in April 1815, when it exploded so loudly that it was heard on Sumatra Island, more than 1,200 miles (1,930 km) away. The death toll from the eruption was estimated at 71,000 people, and clouds of heavy ash descended on may far-away islands.
Such a giant eruption would have regional effects such as falling ash and short-term (years to decades) changes to global climate.
This would all be very problematic, but scientists are sceptical that a single explosive event like this could actually wipe out humanity. Instead, volcanologists say that another type of volcanic event may pose a much greater threat to our existence.
The results of those studies enabled them to determine the current state of the supervolcano, and predict that a new catastrophic caldera-forming eruption likely will happen only in 1 million to 2 million years, probably in Montana. An eruption of power has not occurred in the world for at least 74,000 years.
Considering their destructive potential, it's a good thing super-eruptions are so rare – the last one happened in Toba, Indonesia, about 74,000 years ago. Geologists think these eruptions take place about every 50,000 years, which suggests one is overdue. About 40 supervolcanoes are dotted across the globe.
The United States is home to three active supervolcanoes, the USGS has determined: The famous Yellowstone, Long Valley and the Valles Caldera in New Mexico.
Nestled in the San Juan Mountains, there is ample evidence of one of the largest known volcanic eruptions on the planet: a caldera 22 miles wide and 62 miles long. It's called the La Garita Caldera, and it rivals the Toba eruption in Indonesia and all Yellowstone eruptions.
The Yellowstone Caldera, sometimes referred to as the Yellowstone Supervolcano, is a volcanic caldera and supervolcano in Yellowstone National Park in the Western United States. The caldera and most of the park are located in the northwest corner of Wyoming.
YVO gets a lot of questions about whether Yellowstone, or another caldera system, will end all life on Earth. The answer is—NO, a large explosive eruption at Yellowstone will not lead to the end of the human race.
How much warning could we get before a super eruption?
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 deformation and typically take place days to weeks before an actual eruption.
The biggest supervolcano on Earth was discovered in 2013: the Tamu Massif, with a 4 km height and a 640 km width, a submarine shield volcano located in the Pacific Ocean, east of Japan.

We conclude that the optimal heat generated by lava at 2,190°F cannot melt the tungsten because of its high melting point. Other examples of metals and ceramics that can withstand lava's temperature include; titanium, iridium, iron alloys, osmium, nickel alloys, aluminum oxide, mullite, and silicon nitride.
Around 70,000 years ago, humanity's global population dropped down to only a few thousand individuals, and it had major effects on our species. One theory claims that a massive supervolcano in Indonesia erupted, blackening the sky with ash, plunging earth into an ice age, and killing off all but the hardiest humans.
The loudest sound in recorded history came from the volcanic eruption on the Indonesian island Krakatoa at 10.02 a.m. on August 27, 1883. The explosion caused two thirds of the island to collapse and formed tsunami waves as high as 46 m (151 ft) rocking ships as far away as South Africa.
ANSWER: Although it is possible, scientists are not convinced that there will ever be another catastrophic eruption at Yellowstone. Given Yellowstone's past history, the yearly probability of another caldera-forming eruption can be approximated as 1 in 730,000 or 0.00014%.
YVO has noted, with some amusement, tabloid headlines about various diabolical schemes to trigger an eruption of Yellowstone by nuking the caldera. If you find these crazy schemes somewhat unnerving, please don't be concerned—such a plan has zero chance of working!
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.
The two intervals are thus 0.8 and 0.66 million years, averaging to a 0.73 million-year interval. Again, the last eruption was 0.64 million years ago, implying that we are still about 90,000 years away from the time when we might consider calling Yellowstone overdue for another caldera-forming eruption.
There are about 12 supervolcanoes on Earth — each one at least seven times larger than Mount Tambora, which had the biggest eruption in recorded history. If all of these supervolcanoes erupted at once, they'd likely pour thousands of tons of volcanic ash and toxic gases into the atmosphere.
What volcano in the US is overdue?
The Yellowstone supervolcano last erupted about 640,000 years ago. A sleeping giant is nestled in the western part of the United States. Though it stirs occasionally, it has not risen from slumber in nearly 70,000 years.
If you dropped a nuclear bomb into the crater of an extinct volcano, you would flatten the mountain out a bit but you wouldn't set the volcano off because there wouldn't be any pre-existing upwelling of magma.
Beneath Yellowstone National Park lies a supervolcano, a behemoth far more powerful than your average volcano. It has the ability to expel more than 1,000 cubic kilometers of rock and ash at once — 2,500 times more material than erupted from Mount St. Helens in 1980, which killed 57 people.
Yellowstone Caldera, enormous crater in the western-central portion of Yellowstone National Park, northwestern Wyoming, that was formed by a cataclysmic volcanic eruption some 640,000 years ago. It measures approximately 30 by 45 miles (50 by 70 km), covering a large area of the park.
Modeling the spread of ash from a Yellowstone super-eruption
Even a few inches of ash (which is what much of the country can get) can destroy farms, clog roadways, cause serious respiratory problems, block sewer lines, and even short out transformers. Air travel would have to shut down across much of North America.
Volcano, location | Height in meters |
---|---|
Mauna Loa (Hawaii, United States) | 9,170 |
Mount Kilimanjaro (Tanzania)* | 5,895 |
Popocatépetl Volcano (Mexico) | 5,426 |
Mount Fuji (Tokyo, Japan) | 3,776 |
No, Mount Everest is not a volcano. It was produced from a tectonic collision between the Indian and Eurasian tectonic plates tens of millions of years ago.
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.
However, recent studies find that the speed at which the volcano can fill its magma chamber and erupt is on the order of a few decades. That means Yellowstone supervolcano could go from its usual activity like today to erupting in 2030's.
One of the most concerning effects of the amount of ash particles in the air would be on the climate. The ash would block out the sun causing the whole world to experience a sudden temperature drop of up to ten degrees. It would even spark a mini ice age.
What is stronger a volcano or a nuclear bomb?
The eruption of the underwater volcano in Tonga that triggered a tsunami earlier this year (January 2022), released more energy than the Tsar Bomba - the most powerful nuclear bomb ever detonated - according to a new study.
A nuclear explosion may occur with a few minutes warning or without warning.
How long would a nuclear warning be? If a nuclear bomb were headed toward the US, residents would have 30 minutes or less to shelter. Actions immediately following a blast, like showering or staying indoors, could save your life.
- 1 – La Garita Caldera.
- 2 – Lake Toba.
- 3 – Cerro Guacha.
- 4 – Yellowstone Caldera.
- 5 – Lake Taupo.
- 6 – Cerro Galán.
- 7 – Island Park Caldera.
- 8 – Vilama.
More liquid magma lurks beneath the Yellowstone supervolcano than scientists once thought. But don't panic: That amount of magma, researchers say, is still nowhere near enough to portend an eruption any time soon.
Ultimately, global temperatures would drop, plants would die, and agriculture would fail. In fact, the UN estimates that the entire world would run out of food in just over two months. Now, Yellowstone has a history of eruptions like this. It's erupted three times in the past 2.1 million years.
Magma and lava solidify in much the same way that water freezes. When magma or lava cools down enough, it solidi- fies, or "freezes," to form igneous rock.
Tardigrades are among the most resilient animals known, with individual species able to survive extreme conditions – such as exposure to extreme temperatures, extreme pressures (both high and low), air deprivation, radiation, dehydration, and starvation – that would quickly kill most other known forms of life.
It is an electric-blue flame that has the illusory appearance of lava. Despite the name, the phenomenon is actually a sulfuric fire that resembles the appearance of lava, rather than actual lava from a volcanic eruption.
Humans have certainly had a profound effect on their environment, but our current claim to dominance is based on criteria that we have chosen ourselves. Ants outnumber us, trees outlive us, fungi outweigh us. Bacteria win on all of these counts at once.
Would humans evolve again if we went extinct?
But even if that common ancestor still existed, the fact that evolution is the result of both random mutation and a process of natural selection imposed by environmental conditions, means it's highly unlikely that it would ever retrace its steps in quite the same way.
Genetic studies have demonstrated that humans are still evolving. To investigate which genes are undergoing natural selection, researchers looked into the data produced by the International HapMap Project and the 1000 Genomes Project.
Eruption | Year | Casualties |
---|---|---|
Mount St. Helens, Washington | 1980 | 573 |
Kilauea, Hawaii | 1924 | 11 |
Lassen Peak, California | 1915 | 04 |
Mount Vesuvius, Italy | 79 A.D. | 3,3602 |
The West Mata volcano is ~1200 meters (~4000 feet) below the surface of the ocean, where cameras captured the deepest ocean eruption ever found.
RealLifeLore goes on to say that lava from the volcano would destroy just about everything within a 40-mile radius of the blast.
A supervolcano is any volcano capable of producing a volcanic eruption with an ejecta volume greater than 1,000 km3 (240 cu mi). This is thousands of times larger than normal volcanic eruptions.
The United States is home to three active supervolcanoes, the USGS has determined: The famous Yellowstone, Long Valley and the Valles Caldera in New Mexico.
Putting this into perspective, if the Yellowstone Volcano were to erupt at this level of intensity today, over 3-4 feet of ash would fall upon the nearby states of Montana, Wyoming, Colorado, and Idaho, and lesser amounts would continue to fall on surrounding states.
This comes out to an average of about 725,000 years between eruptions. That being the case, we still have about 100,000 years to go, but this number is based on very little data and so is basically meaningless (would you base any conclusion on the average of just two numbers?).
The two intervals are thus 0.8 and 0.66 million years, averaging to a 0.73 million-year interval. Again, the last eruption was 0.64 million years ago, implying that we are still about 90,000 years away from the time when we might consider calling Yellowstone overdue for another caldera-forming eruption.
What will America do if Yellowstone erupts?
Even a few inches of ash (which is what much of the country can get) can destroy farms, clog roadways, cause serious respiratory problems, block sewer lines, and even short out transformers. Air travel would have to shut down across much of North America.
The three stages of a volcano's life cycle include: active, dormant, and extinct. Active volcanoes are those that have erupted within the past 10,000 years since the last ice age.
There are about 12 supervolcanoes on Earth — each one at least seven times larger than Mount Tambora, which had the biggest eruption in recorded history. If all of these supervolcanoes erupted at once, they'd likely pour thousands of tons of volcanic ash and toxic gases into the atmosphere.
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