Chapter 3, as well as the article “A Fresh Look at Mount St. Helens” is very interesting. Chapter 3, section 1 covers the Earth as a system, the structure of the Earth, and Earth affects like earthquakes, or volcanic eruptions like the one on May 18th, 1980 in Washington State. Mount St. Helens was once covered with vegetation and small ponds. It has been nearly thirty years since one of the largest eruptions ever observed. The explosion blew the side of Mount St. Helens and lasted nine hours. This article relates to chapter three a lot. This volcanic eruption transformed the landscape and environment extremely. Mount St. Helen was once 9,677 feet tall and after the violent eruption it trimmed 400 meters off the top.This eruption damaged enough …show more content…
The solid part of the Earth consist of solid rocks and soil. The Earths surface is the geosphere. The hydrosphere makes up all of the water on Earth's surface. The Earth is divided into three layers the crust, mantle, and the core. The crust is very brittle and this is why it was easy for Mount St. Helen to blow it to pieces. Tectonic plates are what glides underneath the underlying asthenosphere. This is what causes mountains to shift or grow. This can affect when volcanoes erupt. Volcanos are located near tectonic plate boundaries, where plates either collide or separate.
A volcano is a mountain built when magma rises from Earth's interior to the surface of the Earth.Volcanoes erupt when the pressure of the melted rock inside becomes so high that it blows through the solid surface of volcano. This explosion leads to many economic difficulties just like it did when Mount St. Helen exploded. It is a devastating event and clouds of ash, dust, and gases flowed into the environment. These fumes can be difficult to breath in and the damage it can cause wildlife is also
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Before the Mount St. Helens explosion, there were fifteen amphibian species in the area. The eruption wiped them all out. There were no signs of amphibians until three years after the incident. Finally two species were found. The western toad and the Pacific tree frog. Today, life has returned stronger than before. Scientist have counted more than one hundred fifty species of wildflowers, shrubs, and trees. There is an average of ten new plant species each year. The six square miles of land that was once covered with ash and completely dead, is now covered with life and has willows as tall as fifteen feet
Let’s begin with Mount St. Helens which is located in the pacific northwest of the United States. To be more specific it is located in Washington State and is a part of the Cascade mountain range that spans from California to Canada. It is a composite volcano, which has steep sides that are formed by alternating layers of lava
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
A hazard is a situation that poses a level of threat tolife, health, property or environment. The level of hazard posed by different volcanoes can very greatly, from a weak eruption with minimal impact that causes little damage, to a voilent and life threatening explosion. Most of the sixty-plus volcanoes that erupt each year are low risk, however a combination of factors can cause a volcano to be a serious hazard. The factors causing these variations will be explained in this essay.
The volcanoes are located where there is a divergence or convergence in the tectonic plates and bring their lava from the deepest of the terrestrial mantle. The materials and explosions of these ginates represent a constant risk in the places inhabited by the human being, nevertheless the people ususually live in these areas no matter the risk. On the other hand the volcanos can change the geology of an impressive form, or to cool the temperature of the earth, or to darken the sky. The scientific community increases its efforts to try to understand better what happens in volcanoes, however it is impossible to predict these conditions.
The side of mt st Helens has been blown off by the force of the blast and trees have been demolished buy the rocks crashing at them
Volcanoes are one of the most destructive, yet, most beautiful things on Earth. They can make a famous city choke in its own ashes in one day, like Pompeii. Or they can turn a once damaging mountain into a graceful and peaceful home for new life, like Mount St. Helen’s. All volcanoes are unique, and no two are the same. Some erupt differently than others, some look different than others, and all are located in different spots all over the world. I learned this while completing the project and the five volcanoes I researched are examples of my discoveries. The five volcanoes I researched were Mount Hood, Mount Mageik, Long Island, Mount Muria, and Las Pilas.
Volcanos are beautiful yet discursive. They may have different effects on towns but some are similar, and some are different. Some may have an effect on both people and cities and the people's mindsets may change on their beloved homes.
Bagley, Mary. “Mount St. Helens Eruption: Facts & Information.” LiveScience, Purch, 28 Feb. 2013, www.livescience.com/27553-mount-st-helens-eruption.html
It goes on to explain some of the Europeans to first record the sighting of the mountain which happened May nineteenth seventeen ninety-two during the surveying of the northern Pacific Ocean. It was named by Vancouver for a British diplomat, "1st Baron St. Helens," on October twentieth seventeen ninety-two, but before this local Indians had already named it louwala-clough or smoky mountain. In eighteen twenty-nine Hall J. Kelley led a campaign and planned to rename this mountain and all others after one of the United States president, he had tried to rename Mt. St. Helen to Mount Washington. As horrible as the explosion in May og nineteen eighty claimed lives the paper says if the explosion had waited just one day later on Monday rather Sunday when all the people were at work such as loggers they believe the death poll would have been much more higher. A second eruption was noted to had occurred on may twenty-fifth, noone was thankfully hurt and a rather popular film was then created named The Eruption of Mount St. Helen. After all that occurred with the volcano and all it put everyone through president Ronald Reagan in nineteen eighty-two established the Mount St. Helens National Volcanic Monument, which still to this day remains a famous natural laboratory for the study of earth processes,nature, and catastrophes. The volcano and the area surrounding still have a long way to go before it recovers and has all the things it had
May 18, 1980 was a day that dawned sunny and beautiful. Mt. St. Helens stood out beautifully against the blue sky. The mountain had been rumbling quite a bit the past few days, and geologists were watching it carefully and monitoring vibrations. There had been a series of earthquakes from around March 12, up until present day. Over 170 earthquakes hit that were higher that 2.5 on the Richter scale in that short period of time. The earth shook with an earthquake that hit 5.0 on the Richter scale, at around 8:32 in the morning. That did it. Mount St. Helens blew apart with the force of over 500 times more powerful than the atomic bomb. The lateral blast traveled at over 300 miles an hour, and destroyed 230 square miles of forest in just 3 minutes.
Bagley, M. (2013, February 28). Mount St. HelensEruption: Facts & Infomation. Retrieved December 15, 2016, from
After more then 40,000 years of activity, one would expect that people would no longer live in the surrounding shadow of Mt. St. Helens. But regardless, many towns and cities sit inside of a zone that would face destruction if a large eruption took place. In 1980 Mt. St. Helens erupted and caused the loss of many lives and the destruction of thousands of miles of land and property. Following the eruption, the volcano has stayed extremely active. In 2004 it erupted again, building a new lava dome and sending ash and steam into the atmosphere. Since then, seismologists and volcanologists have recently discovered pockets of magma rising and that another eruption may occur soon. Even though the people of Washington know that an eruption could cause widespread devastation they continue with their lives, doing little to prepare for the potential disaster.
Simultaneously, Mt Adams is the second highest mountain and the most under looked volcano in Washington State. In terms of volume, Mt. Adams is the second largest volcano (behind Mt. Shasta) in the Cascade Range (Alt & Hyndman 1984). Since it has been relatively quiet for the past couple millennia, it does not receive as much attention as it’s counterparts and draws very few tourists due to it’s remote setting (Hill 2004). Prior to recent research, not much was known regarding Mt. Adam’s eruptive history, frequency or how explosive previous eruptions have been. (Hildreth & Lanphere 1994). In this paper, I will discuss the geography, history, geology, and hazards of Mt. Adams and it’s surrounding area; focusing heavily on its geology and geologic hazards.
Mount St. Helens, located in southwestern Washington about 50 miles northeast of Portland, Oregon is one of several lofty volcanic peaks that dominate the Cascade Range in the Pacific Northwest. Mount St. Helens sits on a plate boundary. It’s the plate boundary between Juan de Fuca and the North American plates. The spot in which it sits happens to be in the ring of fire, a string of volcanos that are more volatile since they sit between the two plates. Although the mountain has been called the most beautiful in the Cascade Range and has been compared to Mt. Fujiyama, everything changed on May 18, 1980, when the quiet Mt. St. Helens decided to become an active volcano and cause the worst natural disaster in the history of the U.S. The eruption
How volcanoes affect people and environments? A volcano is a mountain or hill having a crater or vent through which lava, rock fragments, hot vapor, and gas are in. Volcanoes can change the weather. They can cause rain, thunder and lightning. Volcanoes can also have long-term effects on the climate, making the world cooler.