Preview

Informative Speech On Super Volcanoes

Good Essays
Open Document
Open Document
836 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Informative Speech On Super Volcanoes
Super volcanoes
We are now in year 2016, and I believe that almost all people in the United State remember the disaster film called “2012”. The catastrophe included great eruptions of super volcanoes in America, such as Yellowstone. There are a lot of scientists doing researches of super volcanoes, and trying to predict when will the super volcanoes erupt again. Today I would like to introduce some knowledge of super volcanoes, and the reason why people do not need to worry about hazards of eruptions of super volcanoes.
“The term "super volcano" implies a volcanic center that has had an eruption of magnitude 8 on the Volcano Explosivity Index (VEI), meaning the measured deposits for that eruption is greater than 1,000 cubic kilometers (240 cubic miles)”. (Questions About Super volcanos, 2015). According to the definition of super volcano, we know that super volcano is actually a kind of volcano, which erupt more than one thousand cubic kilometers of deposits. Within last 2 million years, there are some volcanoes that produced extremely voluminous pyroclastic …show more content…
There is a theoretic solution that people could drill into the volcano, and help it to release some energy. However, this solution has been denied because of unfeasibility. Then government set a lot of observation stations at active volcanoes in order to observe and analysis volcanoes activities. Hence I believe that scientists could notice people when the super volcanoes would erupt, and they could figure out how to prevent eruptions.
To draw a conclusion, we do not need to worry about eruptions of super volcanoes for these following reasons: the probability of eruption is extremely low; scientists do not detect evidences of currently eruptions. On the other hand, I hope scientists could understand why super volcanoes erupt, what causes eruptions, and how to prevent
Continue Reading
View Writing Issues

You May Also Find These Documents Helpful

  • Better Essays

    How Did Mt St Helens Erupt?
    • 1309 Words
    • 6 Pages

    How Did Mt St Helens Erupt?

    Currently, there are fifteen subduction-related volcanoes active along the Cascade chain. Before 1980, the last one to erupt was Mt. Lassen in California, in 1914. In the mid-1970's scientists were concerned that Mt. Baker, in northern Washington, might be the site of the next volcanic eruption, based on increased activity on the volcano. However, in 1978, Dwight Crandell and Don Millineaux of the USGS suggested that Mt. St. Helens was potentially the most likely volcano to erupt in the twentieth century; based their evidence on the relatively young age of the volcano, and its frequent historical eruptions (Explore). Since about 1400 A.D., eruptions have occurred at approximately one every 100 years.…

    • 1309 Words
    • 6 Pages
    Better Essays
    Read More
  • Good Essays

    Volcanic Hazard Depend Primarily on Physical Factors? Discuss.
    • 829 Words
    • 4 Pages

    Volcanic Hazard Depend Primarily on Physical Factors? Discuss.

    Volcanic eruptions happen all across the surface of the globe, many argue that if controlled and monitored they would have little effect on the population. However others argue that some volcanic events are too powerful or unpredictable to control.…

    • 829 Words
    • 4 Pages
    Good Essays
    Read More
  • Better Essays

    Assess the extent to which primary rather than secondary impacts are the more serious effects arising from volcanic eruptions. (30 marks)
    • 1025 Words
    • 5 Pages

    Assess the extent to which primary rather than secondary impacts are the more serious effects arising from volcanic eruptions. (30 marks)

    A volcano is an earth hazard that occurs on faults between tectonic plates on a destructive boundary and an eruption is a natural disaster. A primary impact happens immediately after the disaster and before any response like death or collapsing or destruction of buildings. A secondary impact occurs later after the disaster, such less farm produce or a reduction in tourism. The severity of these impacts will differ considerably in a MEDC and LEDC where volcanic eruptions have taken place. These may be seen in the Mount St. Helen volcano eruption as well as in the Iceland volcanic eruption. They may also show that the impacts vary from volcano to volcano, place to place.…

    • 1025 Words
    • 5 Pages
    Better Essays
    Read More
  • Good Essays

    Pompeii Research Paper
    • 718 Words
    • 3 Pages

    Pompeii Research Paper

    Beginning in the year 62 CE, violent earthquakes rocked the region, warning of volcanic activity. The eruption, beginning that fateful August morning, lasted over 24 hours. The eruption was the first one ever recorded in history. An explosion came from the mountain and fine ash fell on the…

    • 718 Words
    • 3 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    Mount St Helens Research Paper
    • 395 Words
    • 2 Pages

    Mount St Helens Research Paper

    5. This project taught me a lot about volcanoes.Mount St. Helens remains a world-famous natural laboratory for the study of Earth’s processes and also nature’s response to catastrophe.Mount St. Helens will erupt a few more times,but they will be very small.The eruption in 1980 is the biggest eruption for mount St. Helens.I learned much more about this volcano than I knew…

    • 395 Words
    • 2 Pages
    Satisfactory Essays
    Read More
  • Better Essays

    Summary: Contrasting Caligula, Nero, And Vespasian
    • 1565 Words
    • 7 Pages

    Summary: Contrasting Caligula, Nero, And Vespasian

    Suetonius is well known for his major historical work entitled The Twelve Caesars in which he analyzes the lives of twelve Roman emperors starting with Julius Caesar and ending with Domitian. The Twelve Caesars is considered to be an accurate and reliable primary source; however, it is a little bit biased in the sense that Suetonius is not always impartial in his assessments of the Roman emperors. It seems that Suetonius gives very good treatment to those emperors that he likes and very harsh treatment to those emperors that he dislikes, which says quite a lot about his integrity as a historian. For example, as is mentioned…

    • 1565 Words
    • 7 Pages
    Better Essays
    Read More
  • Good Essays

    Why Pt. Thunder Is A Volcano
    • 753 Words
    • 4 Pages

    Why Pt. Thunder Is A Volcano

    Overview To all the residents in the village of Boomsdale, recently Dr. Bigbrain with the United States Geological Survey (USGS) has detected small earthquakes coming from Mt. Thunder. For those of you that do not yet know, Mt. Thunder is an active stratovolcano and these earthquakes could be related to an impending volcanic eruption. There are three types of volcanos which include: shield volcanos, scoria cone volcanos, and stratovolcanoes. Unfortunately, stratovolcanoes are the most dangerous, explosive, and deadly volcanoes. The reason for stratovolcano’s explosive tendency is because of the type of magma contained in the volcano’s magma chamber located underground beneath Mt. Thunder.…

    • 753 Words
    • 4 Pages
    Good Essays
    Read More
  • Better Essays

    To what extent can preparedness and planning mitigate the effects of volcanic hazards
    • 1382 Words
    • 4 Pages

    To what extent can preparedness and planning mitigate the effects of volcanic hazards

    To what extent can preparedness and planning mitigate the effects of volcanic hazards? (40 marks)…

    • 1382 Words
    • 4 Pages
    Better Essays
    Read More
  • Good Essays

    To What Extent Can Volcanic Hazards Be Managed Effectively
    • 764 Words
    • 2 Pages

    To What Extent Can Volcanic Hazards Be Managed Effectively

    The most recent eruptive period was in the 1980’s. Due to USGS (United States Geological Survey) geologists observations of a large bulge measuring 140m on the north face of the volcano. Using modern laser and radar technology they were able to track the movements of this bulge in order to predict when the volcano was in danger of erupting from a an observation tower 6 miles away. With this data collected the authorities were convinced to shut off the volcano to the local populations who make use of the volcano’s fertile soil for a large logging business and many recreational users who walk dogs or come to enjoy the views. As will be shown later, the shutting of the volcano saved many local thousands of tourists, workers and locals lives alone.…

    • 764 Words
    • 2 Pages
    Good Essays
    Read More
  • Good Essays

    Jfk Research Paper
    • 423 Words
    • 2 Pages

    Jfk Research Paper

    Scientist Ben Kennedy begun a very lengthy quest to solve the mystery of the shrinking pumice. This quest would eventually change the way scientists think about volcanoes-forever. One of the things (out of many) that he and his colleagues found out while on the road was that not only the rock was shrinking, the pores that make up the rock were shrinking as well. They think that this was due to the heating of the rock, and the molten rock's surface tension. What the scientist found was how some volcanoes function on the inside. In past years, volcanologists believed that flowing lava sinks back down and settles after an eruption, pressing on the magma below and crushing all of the bubbles, which makes pressure build up under the compacted lava. This leaves the lava sitting there...Until it explodes. Pow! This hints at why some volcanoes will go through cycles of flowing and explosive eruptions.…

    • 423 Words
    • 2 Pages
    Good Essays
    Read More
  • Better Essays

    Mt St Helens
    • 1130 Words
    • 5 Pages

    Mt St Helens

    The prediction of volcanic eruptions is difficult, although most scientists studying them, volcanologists , would say that it can be easier than predicting earthquakes.…

    • 1130 Words
    • 5 Pages
    Better Essays
    Read More
  • Good Essays

    yellowstone
    • 407 Words
    • 2 Pages

    yellowstone

    The local effects of a super volcanic eruption would mainly be extremely high lava and ash deposits, this would affect around 100 miles around the volcano and would cause total destruction of everything in the area, and this would cause untold environmental, social and economic problems in the area, with the majority of people being killed in the eruption. The national effects of the eruption if it did take place within our lifetimes would destroy about 10,000 km squared of land, ash would fall 15 cm thick on every thing within 1000 km of the eruption, it is also predicted that it would kill 87,000 people, 1 in 3 people that were affected would die, again this…

    • 407 Words
    • 2 Pages
    Good Essays
    Read More
  • Good Essays

    Volcanic Hazard Preparedness
    • 844 Words
    • 4 Pages

    Volcanic Hazard Preparedness

    Volcanic activity happens across the surface of the globe and naturally hazards occur too. It can be said that it’s easier to predict an event than prevent it, however prediction does have a positive impact on the effects of a volcanic hazard.…

    • 844 Words
    • 4 Pages
    Good Essays
    Read More
  • Good Essays

    The Mauna Loa Volcano
    • 1094 Words
    • 5 Pages

    The Mauna Loa Volcano

    This is partly due to the fact that the volcano was covered in cloud at high elevation and helicopters were not in use; so, most of the information we have comes from what happened on Highway 11 during the eruption. In the months and years following the eruption, the vents and flows have been examined and mapped extensively, however. The eruption occurred along almost the entire length of the SW rift zone (from 8000 to 13,000 ft) and opened up almost simultaneously (like a zipper) from an essentially continuous vent system. Consequently, lava flows poured down at numerous places on both the west and east side of the rift. The eruption lasted only two weeks but the eruption of 1859 lasted almost a whole year. So, given that the flow volume is 4 to 5 times greater than the 1984 eruption (which lasted 3 weeks) it must have been a spectacular eruption. In places the flows were obviously very fluid and flowing rapidly, since they eroded the bases of prehistoric spatter cones during emplacement. It must have been coming downhill like gangbusters! The lava flow was compositionally very heterogeneous, with the upper part of the rift eruption evolved magmas (MgO 7 wt. %). Compositions became more primitive (MgO up to 10 wt. %) down rift. However, the lowest elevation flows were the somewhat more evolved (MgO 8 wt. %). The data are consistent with mixing of a relatively primitive magma with an evolved magma that may have been residing in the rift zone (this older magma has compositions very similar to the lava produced by the 1949 summit…

    • 1094 Words
    • 5 Pages
    Good Essays
    Read More
  • Satisfactory Essays

    The Wage Gap And The Role Of Discrimination In The Workplace
    • 265 Words
    • 2 Pages

    The Wage Gap And The Role Of Discrimination In The Workplace

    Throughout history, women have been notably resilient and powerful in overcoming all forms of inequity. As the population exponentially grows, women make up almost half of the workforce, they are the sole or co-breadwinner in American families, and they receive more college degrees than men. Yet, women continue to earn significantly less than men in their careers. The wage gap is the ratio earnings of women and men within the economy as a whole. Sociologists have studied that the persistence of the wage gap over time plays in the role of discrimination. Is there discrimination within the workplace? An estimate of 38% wage gap still remains unexplained when factors reasonably thought to affect the gap are controlled for: hiring, firing, promotions,…

    • 265 Words
    • 2 Pages
    Satisfactory Essays
    Read More

Related Topics