DRRR Supervolcano - Grade: B+ PDF

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Sepala, Kin Narita

STEM1A DRRR April 3, 2018

“Supervolcano” Worksheet In-Order Questions (Answer each question in a complete sentence) 1. How did the animals near Orchard Park all die? - The animals near the Orchard Park all died as a result of poisoning. There are others that died as a result of the poaching activity. 2. How did geologists find out that the ash in Idaho is the same as the ash in Nebraska? -

3. How does the formation of a supervolcano differ from that of a regular volcano? - Normal volcanoes are formed by a column of magma, molten rock, rising from deep within the Earth, erupting on the surface and hardening in layers down the sides. This forms the familiar dome or cone-shaped mountains. Like normal volcanoes, supervolcanoes begin when a column of magma rises from deep within the Earth. Under certain conditions, rather than breaking through the surface, the magma pools and melts the Earth's crust turning the rock itself into more thick magma. 4. What is the name of the crater seen after a supervolcano eruption? - The name of the crater seen after a supervolcano eruption is Caldera. 5. In the movie, how is “Virgil” supposed to help volcanologists at Yellowstone? - Vigil supposed to help volcanologists at Yellowstone to determine any possibility of eruption. 6. Mr. Lieberman said the earthquake was not volcanic in origin, what does he believe caused the earthquake initially? - Mr. Lieberman said the earthquake was not volcanic in origin, what does he believe caused the earthquake initially? According to Mr. Lieberman, it was not volcanic; it was tectonic in its nature caused by the grinding together of the earth’s plate along unknown by the fault line. 7. When was the last supervolcano eruption? - The last supervolcano eruption was about 74, 000 years ago in a place called Toba 8. Why are there dead trees along the Caldera Rim at Sour Creek Dome? - There are trees along the Caldera Rim at Sour Creek Dome because CO2 suffocating the roots of the trees

9. How large is the volcanic crater? - The volcanic crater measured 85 kilometer of 45 10. How many times has the Yellowstone Supervolcano erupted? - The Yellowstone Supervolcano erupted 3 times in the last two million years. The first super eruption at Yellowstone erupted 2.1 million years ago. 11. What is a “surefire way” to predict an earthquake? - A seismometer is used to pick up vibrations in the Earth’s crust. An increase in vibrations may indicate a possible earthquake. 12. What is so important about the timing of the eruptions? - It is important because it let people to be aware whre they have the time to evacuate as soon as possible. Awareness is a must for those places that have an active volcano around where they live. 13. What do they smell in the air on the plane? - They smell the ash clouds or the volcanic ash (Sulfur Dioxide) produced when the eruption began. 14. Are volcanic eruptions easy to predict? Why or why not? - No, volcanoes are notoriously difficult to predict. Even if we had the best equipment in the world though we still got two big blind spots which is the timing and scale. We can't predict when and we can't tell how big would be the damage because no one knows the exact timing of a certain natural phenomena. 15. What is happening to the lake at Yellowstone? - It happens to have a bulge, as magma pocket swells. It is rising on swollen, the water is springing out as if it were boiling a water. 16. What do harmonic tremors indicate? - Harmonic Tremors indicate the sign of impending eruption and it is a seismographic reading which means that the magma is on the move even though when you see one of those you can't tell how big an eruption you're looking at but you know that it's coming well. 17. How did geologists determine the size of the magma chamber under Yellowstone? - Geologists was relying on earthquakes through seismic tomography to determine the size of the magma chamber under Yellowstone 18. How do geologists think the Toba supervolcano eruption affected the planet? - Toba eruption was a supervolcanic event; it was much, much bigger than any other volcanic eruption we see in the geological record. Chemical analysis of the ash tells us that this eruption was rich in sulfur, would have released a tremendous amount of sulfur dioxide and other gases into the stratosphere which would have turned into sulfuric acid aerosols and affected the climate of the Earth for years. 19. What % of the U.S. was covered by ash? - 80% of the U.S was covered by ash.

Post Movie Questions (Answer After Movie) – Answer each question with three or more complete sentences 20. Why are scientists cautious about what they say in the media? - Scientists are cautious of what they say in the media in a way to prevent a panic attack. The way they present there selves in the media and how they deliver the message could help sustain the situation and prevent a much worse scenario that could occur between the affected people. And also by this way they could assist a calm and safe evacuation among the people. 21. Why should everyone in the world be worried by days 3 and 4? What evidence is presented in the movie? - Everyone in the world should be worried by days 3 and 4 because the magma chambers under Yellowstone are creating more vents resulting to a new eruption. And the evidences presented in the movie; the volcano showed no sign of slowing, the ash cloud covered 3 quarter of US. The road and airports are all closed, the water are polluted, and also the power supply failed. 22. How did the media and politics play into the decisions made by USGS prior to the eruption? - The media and politics played a vital role into the decisions made by USGS prior to the eruption they have spread news about what's happening and they make the USGS find a alternative exploit which make them look for a immediate action upon their ongoing situation. 23. When did the global effects start to be felt? What were they? - The global effects started to be felt after the volcano have erupted or like it take a month for it to be fully recovered when billions of tons of sulfur dioxide were coming out to the volcano covering the Northern hemisphere making the sunlight harder to be seen. After a couple of weeks the temperature has also started to drop-out having 20 degrees in some places as well as the equator starting to be cool. 24. In relationship to other volcanic eruptions how big will the Yellow Stone eruption be? (think about the annoying brother in-law on TV with the building blocks) - Harmonic Tremors indicate the sign of impending eruption and it is a seismographic reading which means that the magma is on the move even though when you see one of those you can't tell how big an eruption you're looking at but you know that it's coming well. 25. What some of the difficulties that would happen after the eruption that would inhibit the ability to rescue people? (Give at least 2 examples)

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The difficulties that would happen after the eruption that would inhibit the ability to rescue people are the Following; First, example is that because of the heavy ash falls, it will be difficult for the rescuers to respond because the places are all covered by thick ashes and it's hard for them to find those people who are trapped inside their houses. Second, example is communication channels would be down as volcanic ash disrupts satellite dishes and blocks radio waves. So when communication channels are down, obviously it will be hard to communicate to others and so this causes inhibiting the ability of the rescuers to rescue those people who are trapped because of the fact that they can't communicate with each other.

26. How did individual personalities play a part in delaying public warning? .... And how would you have handled it?

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