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Effects of disasters
Natural disasters and their effects
Chapter 13 earth systems volcanoes
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My interest in geology started when I was a young girl and would follow my mom around while she ran errands. Along the way, I would constantly be stopping to look at the rocks outside of stores and businesses, picking up the ones I thought were the prettiest. At the time, I did not know that my quickly growing rock collection was the start of my love for geology, but as I got older, we began to learn about the Earth in our science classes, causing me to realize how much I loved our planet and all of its intricacies. In 8th grade, we began studying our rocks and minerals unit when my teacher took out his own moderate-sized collection. We each were able to take our turns examining the differences between each sample and recording it in …show more content…
I had numerous units all across the spectra of meteorology from clouds to natural disasters and each unit had a lab, an essay, and several homework assignments. For my labs, I would often have to go outside, observe the clouds or current conditions a few times each day, and record those so I could make a table of what trends or patterns I noticed. Even though this course was meteorology, not geology, there were several overlaps in material that made me once again realize how much I truly love the Earth. A part of my meteorology unit was studying severe weather and natural disasters such as tornadoes, hurricanes, and volcanoes. Since volcanoes were not technically a natural disaster, I studied earthquakes triggering volcanic eruptions and the effects that the ash cloud and lava flow left on the planet. I found that the ash can turn the sky black even in the middle of the day and the gasses could even reach the stratosphere. Also depending on the size of the eruption, then the ash can have a global effect if it ends up being caught in the trade winds, causing problems for people all across the world. Since my school does not have a specific earth science program and focuses more on the life sciences, meteorology was the closest I could get to continue studying
4. Identify the layer of the Earth in the diagram to the right which makes up 70% of the Earth’s mass and is mostly solid but capable of flow, causing changes in the Earth’s surface. (S6E5a)
Ultimately the development of previous inferences and observations which have developed our current model for the Earth’s composition and interior structure are a key concept in understanding our future developments towards resourcing our planet and understanding how it works to a further degree.
Helens tallied up to be the most deadly and destructive eruption the United States had ever seen. “Approximately fifty-seven people were killed directly from the blast and 200 houses, 47 bridges, 15 miles (24 km) of railways and 185 miles (298 km) of highway were destroyed; two people were killed indirectly in accidents that resulted from poor visibility, and two more suffered fatal heart attacks from shoveling ash (Wikipedia 3)”. Just when it seemed the nightmare was over a second eruption occurred the following day. A quarter of the lava was fresh, and included ash, pumice, and volcanic bombs, and the rest was older molten rock. “The removal of the north side of the mountain (13% of the cone 's volume) reduced Mount St. Helens ' height by about 1,280 feet (390 m) and left a crater 1 to 2 miles (2 to 3 km) wide and 2,100 feet (640 m) deep with its north end open in a huge breach (Wikipedia 3)”. The downwind of the eruption also destroyed many agricultural crops such as wheat, apples, potatoes, and alfalfa. Overall Mount St. Helens was a major blow that cost the US 1.1 billion dollars, and struck fear into the hearts of all of America on May 18th,
On May 22, 1915, an explosive eruption at Lassen Peak devastated nearby areas and rained volcanic ash farther 200 miles to the east! This explosion was the most powerful in a series of eruptions from 1914 through 1917. ...
In March 18, 1880 Mount St. Helens there was a catastrophic eruption that caused a huge volume of ash; the ash plume would be over central Colorado within 16 hours. After years of dedicated monitoring (knowing where to volcano is, unlike an earthquake not knowing exactly where this geological even is exactly) there was been increasing accuracy in forecasting eruptions.
The most iconic volcanic eruption in history was the eruption of Mt. Vesuvius in 79 A.D. Mt. Vesuvius is located on the west coast side of Italy. Pompeii was the ancient town five miles from Mt. Vesuvius where people would flock to the area in 79 AD to be near the Bay of Naples. Little did they know that the volcano would erupt into the most destructive volcano in history. Mt. Vesuvius has erupted about three dozen times and was the most disastrous due to the large population around the area. The volcano, which is still active today, is a stratovolcano. A stratovolcano has pyroclastic flows and erupt explosively and violently. Pyroclastic flows don't necessarily look exactly like “flowing eruptions”. These eruptions are not the “flowing” type of eruptions because they are eruptions with explosions and blowing clouds that fill the air. These clouds are usually dark clouds that are made up of ash. Pompeii had some signs of the volcano erupting, but the technology was not like the technology of today where scientists can monitor the volcanic activity.
This field report is for anyone that is interested in the effects of running water in the North Fork Cosumnes River California.
When Yellowstone does erupt, the United states could be covered in 3 feet of ash from the eruption. First, the pyroclastic flow would swallow most of Wyoming, Idaho, and Montana. Then, like Yellowstone eruptions have done before, the world would fall into a freezing, winter lasting around 10 years. Mass famine would take place all around the world as the eruption would have devastated the agriculture, effecting the food.
Boom! A once ice-capped mountain peak explodes as ash fills the air. “‘Vancouver, Vancouver, this is it!’”Those were the last words of expert geologist David Johnston (Gunn 561). In 1980, Mount Saint Helens of the state of Washington erupted, filling the air with ash and causing mudflows powerful enough to lift tons. It decimated everything in its path. The eruptions, mudflows, and ash caused great damage on the landscape, yet it gave us information on how catastrophes happen and how they affect society and the surrounding landscape. The data acquired can also help us understand the way the landscape was formed. Mount Saint Helens caused much damage, but also helped people understand the science behind it.
The first time I saw Mt. Rainier for myself, was last summer when my boyfriend and I drove to Washington. It was the most beautiful, peaceful looking mountain I have ever seen. However, underneath it's great beauty, it hides a deadly secret. Mt. Rainier is one of the most dangerous volcanoes that we have here in the United States. One of the reasons it is so dangerous is because of it's great beauty. People enjoy looking at it, and the area that surrounds it, so they have made their homes here. Mt Rainier is not the only volcano I am interested in, in fact this last summer I also went to Mt. St. Helens and Crater Lake. But it is the volcano I chose to research for this paper because it does have so much beauty and at the same time so much power. I already know the basics about volcanoes, how they form, the different types, etc., but I wanted to find out more about what would happen if this great volcano were to erupt, what type of eruption would it be, and how would it affect the people that live around it.
7. Refer to Figure 22-6. What name is given to the core of the modern-day North American continent that formed in the Proterozoic?
This eruptions cause a leatral blasts ,lava flows , hot ash flows and many other disaster .
Within a thousand kilometres falling ash, lava flows and the utter explosive force of the eruption would kill practically all life. Volcanic ash would cover places as far away as Iowa and the
Besides these subjects, there are some things that every geologist should know. Most of these things are laws and rules about how the Earth is made up and how it works. These include chemical compositions, structures, and properties of a substance (Abilities from jobs.virginia.gov 1). Knowing what the magnetic, electrical, and gravitational forces are is also essential (JIST 60). Geologists have to know the methods for describing landforms, the sea, and air masses (1). This is helpful when working in the field. Geologists can describe what they see better and present it to others in a clearer way. As with anything, knowing the history of the study is also important. Geologists need to know historical events, their causes, indicators, and impact (1).
Understanding the plate tectonics theory is very important, especially when investigating natural disasters like earthquakes, and volcanic eruptions. It is also gives scientists the ability to understand how mountains were formed between two tectonic plates. There are three types of interactions between plate boundaries: convergent, divergent and transform. Looking back at the history of these three different interactions, earthquakes, like the one in Haiti, volcanic eruptions, like at Mount St. Helens, and the creation of mountain belts, like the Mid-Atlantic Oceanic ridge, gives information on future consequences of tectonic movement, and what can happen when the plates interact with each other.