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Home » Earthquake (483 Papers)

Earthquakes
Kinds and locations of earthquakes 3 kinds of earthquakes Ø TECTONIC (more devastating) · Cause by movements of the tectonic plates around earth crusts · Most of them occur at boundaries of these plates. Ex. San Andres fault in California · 50% occur art sub duction zones concentrated along the ring of fire Ocurre in variety of settings mid ocean ridges the sea floor spreading centers Ø VOLCANIC ( usually small ) · In a volcano it could have more than a 100 eart ... Kinds and locations of earthquakes 3 kinds of earthquakes Ø TECTONIC (more devastating) · Cause by movements of the tectonic plates around earth crusts · Most of them occur at boundaries of these plates. ... Devasting earthquakes · 1906 a 9.0 hits Russia · 1957 a 9.1 hits Alaska · 1960 a 9.5 hits Chile · 1964 a 9.2 hits Alaska · These shows there has been 4 magnitude 9.0 the las 40 years, meaning that there is one each decate around the world · Aprox. 100 quakes of magnitud 5-6 occur anually around the world · Aprox. 50 000 of magnitud 3-4 · Aprox. 1 of magnitu... Wordcount: 520 Pages: 2
Earthquake
Earthquake (A parrellel to Typhon) INTRODUCTION The myth of Earthquake has three different purposes. First, its shows the power of Zeus, being able to maintain peace and order in the universe which he rules. Earthquake is the first challenger of Zeus"s great power. Earthquake is a very formidable foe that has tremendous strength and size. Zeus got rid of Earthquake by himself and was able to triumph, but the triumph would not have been possible ... Earthquakes can cause great destruction. ... Earthquakes have caused millions of dollars in damage like the earthquake in San Francisco in 1989. ... If so was it a large earthquake or a small earthquake. ... Gaea named her son earthquake. ... Once Earthquake had safely passed Mount Aetna, Zeus emerged and followed the powerful Earthquake. ... Wordcount: 1667 Pages: 7
Earthquakes are OK
Earthquakes are happening almost everyday all over the world. Most of the time earthquakes are not strong enough to be felt by people, but the shaking caused by an earthquake is recorded by a seismogram. These are located all over the world at different points. Only occasionally will a larger magnitude earthquake strike and cause damage to the region. Around the world there are many faults, depending where these faults are plays a major factor in determining where an earthquake will happen. It i ... Earthquakes are happening almost everyday all over the world. Most of the time earthquakes are not strong enough to be felt by people, but the shaking caused by an earthquake is recorded by a seismogram. ... This means that the triggering of an earthquake at a divergent boundary triggers an earthquake at a convergent plate. ... These earthquakes tend to be more common than the deeper earthquakes. ... The strength of these inter-plate earthquakes are relatively small, compared to boundary earthquakes. ... Wordcount: 1592 Pages: 6
bc earthquake
Introduction: The settlement of people in the Pacific Northwest is heaviest along the coastline, which is coveted for its natural beauty and warmer winter climate. However, out of sight from the settlements and deep below the earth"s surface is a ticking, natural time bomb. A megathrust earthquake is not a matter of if, but when and how big. This threat of 'The Big One" is forgotten in the daily lives of the populous. Occasional warnings from seismologists do not convince many to con ... A megathrust earthquake is not a matter of if, but when and how big. ... The Subduction-zone earthquake: A Subduction-zone Earthquake can be classified into two stages: The first stage is the Interseismic Period or "between earthquakes" stage, it takes place over hundreds of years. ... The Coseismic Period or Earthquake Rupture zone occurs when the accumulating stress exceeds the strength of the fault, the locked zone fails and a great earthquake occurs. ... "In the days before the white man there was a great earthquake. ... Most of the tsunamis were the result of local earthq... Wordcount: 2341 Pages: 9 Bibliography
The Earthquake Phenomenon
Every year there are about a million earthquakes. Fortunately, not all of them are destructive. The intensity of an earthquake is measured on the Richter Scale, which goes from zero upward. Major damage generally occurs from earthquakes ranging from 6.0 upwards. The damaging earthquakes also occ ... Every year there are about a million earthquakes. ... Major damage generally occurs from earthquakes ranging from 6.0 upwards. ... An earthquake is the shaking that radiates out from the breaking rock. ... Another effect earthquakes have is soil liquefaction. ... Earthquakes that occur under the ocean cause tsunamis. ... Wordcount: 574 Pages: 2
Earthquakes
You wake in the darkness, unsure about what has disturbed you. Strangely the clock on your bedside table begins to rattle about, as if it has a will of its own. You become aware of a strange roaring sound outside, like a jet passing overhead. The rattling grows and strengthens. Suddenly, the earth moves, bucking like a wild animal. Your room heaves; glasses crash in the kitchen; paintings fall from the walls. What is it? What could make the normally stable earth move like this? Throughout huma ... Throughout human history there have been many attempts to explain earthquakes, from a disturbance created by growling demons who live beneath the earth to the movements of the giant tortoise who carries the world on his back. ... Earthquakes are caused when plates move, rub, or push against each other. ... The vibrations make the ground move and shake, which is an earthquake. ... Wordcount: 342 Pages: 1
Earthquake Occurences
Earthquakes can simply be defined as a naturally induced shaking of the ground caused by the fracture and sliding of rock within the earth's crust. There are at least 6,000 earthquakes detected throughout the world each year. Many people have heard about or experienced first hand the effects that ... Earthquakes are caused by faults that are active. ... Some earthquakes tremendously effect the earth. No earthquake is exactly alike another so the effects vary depending on the part of the world the earthquake occurred and the size of the earthquake. One effect that earthquakes have is strong ground motion. ... In the following pages you will find charts and tables which outline some of the greatest earthquakes of the 20th century and useful earthquake terminology.... Wordcount: 560 Pages: 2
Internet Assignment Earthquake
Internet Exercise 7 Earthquakes Please write neatly. If I cannot read your handwriting, I will not grade your assignment. Please print your name on this assignment. Please staple your assignment before turning it in. Cutting and pasting directly from web sites or copying from a friend is called PLAGIARISM! Dont do it! Read Dr. Asher's policy on Plagiarism in your syllabus. This exercise will focus on topics related to earthquakes. Web sites with useful definitions and information about earth ... Internet Exercise 7 Earthquakes Please write neatly. ... How many earthquakes have occurred today? ... Twenty-one earthquakes have happened today. ... Why do earthquakes occur? ... When did this earthquake occur? ... Wordcount: 964 Pages: 4
Earthquakes
The earth we live on consists of the ocean, and the continents. Below the ocean and continents we have the earth"s crust, which can very in length for miles. Under the earth"s crust we encounter small breaks in the earth, which is caused by the slow movement of mantle. With this movement we find the plates of the continent breaking apart and causing earthquakes (Nicholls, Bill 2). The earth"s mantle roughly extends about 1,798 miles. The density of the mantle changes because of pressure and h ... Oceanic plates can also cause earthquakes. Although it seems odd we encounter earthquakes, under water they still occur. ... Earthquakes can be long and deadly, while others can be short and harmless. The destruction that an earthquake can cause could be very devastating. ... When we experience an earthquake, a machine called 'seismic tomography" records the sound waves, temperatures, and pressures of an earthquake. ... Wordcount: 649 Pages: 3 Bibliography
Harmful Causes of Earthquakes
An earthquake is shaking or trembling of the earth that is volcanic or tectonic in origin. "A broadly satisfying explanation of the majority of earthquakes can be given in terms of what is called plate tectonics. The basic idea is that the Earth's outermost part also called the lithosphere consists ... An earthquake is shaking or trembling of the earth that is volcanic or tectonic in origin. ... The people of Maori in New Zealand believed the god of earthquakes, Ruaumoko is said to have pressed into the earthquake as his mother turned face downward while feeding him. ... "Because the size of earthquakes varies enormously, the amplitudes of the ground motions differ by factors of thousands from earthquake to earthquake. ... Along seacoasts, another disaster may follow large earthquakes. ... In March 1980 a few earthquakes near Mt.St. ... Wordcount: 1182 Pages: 5
The Impact of Earthquake in the United States Economy
The Effect of Earthquakes in the United States on the Economy in Reference to Government Funds Spent on Prediction, and Hazard PreventionOver the period of many years, earthquakes have had a major effect on the economy of the United States of America. In this paper I plan to discuss how earthquakes ... In this paper I plan to discuss how earthquakes have an effect on the economy. ... (Earthquake! ... To "earthquake proof" all the bridges along the Oregon coast. ... Although there is no "airtight" way to predict earthquakes, many scientists and seismologists have come up with some ways they believe can predict earthquakes. ... An unexpected earthquake hit on the sixth of May in nineteen seventy-six. ... Wordcount: 931 Pages: 4
Earthquake At Dawn
The book Earthquake At Dawn is a novel about the greatest earthquake that ever happened in California. The earthquake hit San Francisco in 1806 and would have registered 8.3 on the Richter scale. The author named the book Earthquake At Dawn because she tells you the story about an earthquake in Sa ... The book Earthquake At Dawn is a novel about the greatest earthquake that ever happened in California. ... The author named the book Earthquake At Dawn because she tells you the story about an earthquake in San Francisco and what it did to the city. ... She is very upset that the earthquake will change her plans. ... Just like Edith and Daisy do in the book Earthquake At Dawn, Jack London describes how the city was destroyed and burned by the earthquake. ... But an earthquake, well....."... Wordcount: 827 Pages: 3
Earthquakes and Its Dreadful Effects
Effects of EarthquakesNature is a beautiful thing. Without nature, there is nothing in this world. Nature gives many wonderful things to mankind. Though nature gives many things to mankind sometimes it shows its creepy side. Earthquakes are one of the terrible outcomes of nature ... Earthquakes are one of the terrible outcomes of nature. ... Earthquakes also destroy farms by ruining the plants and trees while shaking. People may lose their houses if they don't have earthquake proof foundations in their houses.Food shortage is another effect of earthquakes. ... People may lose their lives in earthquakes in many ways. ... People also lose their lives during an earthquake. ... Wordcount: 375 Pages: 2
MidContinent Earthquakes and Their Effect on Concrete Structures
Mid-Continent Earthquakes and Their Effect on Concrete Structures Disasters come in many shapes, sizes, and forms yet all are detrimental to people and structures of all types. The most terrifying of all disasters are natural disasters, the force of nature is rivaled by no man made disaster. One of the natural disasters that has terrorized as well as fascinated humans through out history is the earthquake. Most earthquakes are associated with areas such as Southern California or China ... Concrete being a very brittle material is affected greatly during an earthquake but through technology many advancements have been made to compensate for the damaging effects caused by an earthquake. This paper will discuss mid-continent earthquakes of the past, their effect on concrete structures, problems effecting concrete structures, and alternative materials and solutions to bypass those problems during future earthquakes. Mid-Continent Earthquakes A series of earthquakes occurred between December 1811 and February 1812 in the New Madrid Seismic Zone which is in the Mississippi Rive... Wordcount: 2149 Pages: 9
Kobe Earthquake 1995
Introduction to Earthquakes Earthquakes are natural hazards, which occur on plate margins. Earthquakes are the result of plate movements. The strain builds up along the fault line between two plates until they move causing earthquakes. So why did the Kobe earthquake happen? Japan is at a high risk to earthquakes. Kobe is no exception. Japan"s second most major port is situated on a minor fault, the Nojma Fault. Unfortunately it lies above a destructive plate margin. Kobe is located ... Introduction to Earthquakes Earthquakes are natural hazards, which occur on plate margins. Earthquakes are the result of plate movements. ... So why did the Kobe earthquake happen? Japan is at a high risk to earthquakes. ... What can be done to prevent earthquakes? ... Wordcount: 805 Pages: 3
Understanding the Loma Prieta Earthquake
Understanding the Loma Prieta Earthquake: 10 Years Later At 5:04 PM on October 17, 1989, the San Francisco Bay Area was severely shaken for 15 seconds by the Loma Prieta earthquake located to the south on the San Andreas fault near Santa Cruz. Although the quake did not tear the ground surface, it collapsed some buildings and freeway overpasses built upon the soft "bayfill" sediment in San Francisco and Oakland. A section of the Bay Bridge collapsed. The epicenter of the magnitude 7.1 ... Understanding the Loma Prieta Earthquake: 10 Years Later At 5:04 PM on October 17, 1989, the San Francisco Bay Area was severely shaken for 15 seconds by the Loma Prieta earthquake located to the south on the San Andreas fault near Santa Cruz. ... The probability of a repeat of the 1906 magnitude 8.3 earthquake is still significant. 2 Surface displacements with offsets of up to 3 or 4 feet along a zone about 20 miles long would normally be expected to accompany an earthquake of this magnitude. ... The earthquake was unusually deep, making it difficult for the bedrock rupture to propag... Wordcount: 808 Pages: 3
Two Deadly Natural Disasters: Earthquakes vs. Hurricanes
Every year, hundreds of people are killed by natural disasters. Whether it be a flash flood in Kansas, a mudslide in Ecuador, or a sandstorm in Libya, mother nature sometimes throws whatever she has in her arsenal at mankind. However, which natural disaster poses the worst threat. Two prominent events are earthquakes and hurricanes. One is a horrendous atmospheric disturbance, while the other is an unseen, earthened terror. On account of predictability, occurrences, and power, which one is ... Two prominent events are earthquakes and hurricanes. ... Many people ask, "Can earthquakes be predicted?" ... In addition, earthquakes can occur anywhere! ... Truly, an earthquake is not to be taken lightly. ... A hurricane can be as erratic as an earthquake. ... Wordcount: 1114 Pages: 4
Kobe vs. Northridge Earthquakes: Infrastructural Damages
The January 17, 1995 Kobe EarthquakeAn EQE Summary Report, April 1995 Executive Summaryexecsumm/ex1-600.gifexecsumm/ex1-600.gifOn the first anniversary of the moment magnitude (MW) 6.7 1994 Northridge Earthquake, Kobe, Japan was struck by an MW6.9 earthquake. Both earthquakes struck in the pre-dawn ... The January 17, 1995 Kobe EarthquakeAn EQE Summary Report, April 1995 Executive Summaryexecsumm/ex1-600.gifexecsumm/ex1-600.gifOn the first anniversary of the moment magnitude (MW) 6.7 1994 Northridge Earthquake, Kobe, Japan was struck by an MW6.9 earthquake. ... Both areas require design for much higher forces than most other earthquake regions of the world. ... Building owners usually do not understand that the earthquake provisions of even the strictest building codes do not necessarily have reasonable performance criteria for larger and stronger earthquakes. ... During the earthquake, Kobe... Wordcount: 24170 Pages: 97
San Francisco 1906 Earthquake Disaster
One of the greatest earthquakes happened in 20th century is in San Francisco in year 1906. It measured 7.8 degrees. Many building were destructed and several hundred of people got killed. The earthquake also started a fire, which destroyed the central business district. The earthquake happened on ... One of the greatest earthquakes happened in 20th century is in San Francisco in year 1906. ... The earthquake also started a fire, which destroyed the central business district. ... Parts of the fault line moved as much as 6.4 m (21 feet) during the 1906 earthquake. ... For comparison, the 1989 earthquake only had a rupture length of about 25 miles. ... The ground was moving at 2.7 km/s.The result of the earthquake was tremendous. ... Wordcount: 888 Pages: 4
Mid-Continent Earthquakes and Their Effect on Concrete Structures
Mid-Continent Earthquakes and Their Effect on Concrete StructuresDisasters come in many shapes, sizes, and forms yet all are detrimental to people and structures of all types. The most terrifying of all disasters are natural disasters, the force of nature is rivaled by no man made disaster. One of ... Concrete being a very brittle material is affected greatly during an earthquake but through technology many advancements have been made to compensate for the damaging effects caused by an earthquake. This paper will discuss mid-continent earthquakes of the past, their effect on concrete structures, problems effecting concrete structures, and alternative materials and solutions to bypass those problems during future earthquakes. ... This period of earthquakes was also characterized by deformation which is either elastic or inelastic. Both types of deformation were apparent during the earthq... Wordcount: 2148 Pages: 9 Bibliography
Destruction Caused by Volcanoes
Over 550 volcanoes have erupted on the surface of the Earth since human kind has been able to record history. Their destructiveness has claimed the lives of over 200,000 people during the last 500 years with 26,000 deaths between 1980 and 1990 alone. They have also cause an innumerable amount of property damage. The biggest eruption of the twentieth century was the eruption of Novarupta on the peninsula of Alaska. The amount of lava that erupted measured to roughly 15 cubic kilometers. All of th ... San Francisco suffered a major earthquake that killed 3000 people, the earthquake lasted for about 40 seconds and was recorded at 8.3 on the Richter Scale in 1906. ... The Pacific and North American tectonic plates sliding together caused the earthquake. ... The October 17, 1989 Loma Prieta earthquake was responsible for 62 deaths and 3,757 injuries. ... Earthquakes can sometimes open up the pockets and allow the pressure to be released. ... When lava seeps from surface vents made from earthquakes, it is not a volcano. ... Wordcount: 971 Pages: 4
Disasters in Washington State
Crystalee Renkel03/06/01 Jim Vosper PNW History Disasters in Washington StateHere in Washington we may not have tornados, hurricanes, or monsoons, but we have our own set of calamities. Earthquakes, volcanic eruptions, floods, tsunamis, huge fires, severe storms, dam failures, and landslides ... This quake was reminder to the residents of Washington that we live in earthquake country, more than 1,000 earthquakes are registered in Washingt!... It compares with two disastrous earthquakes: the March 27, 1964 Alaska earthquake, which measured 9.2 moment magnitude, and the May 21-22, 1960 Chile earthquake, which measured 9.5 moment magnitude. ... Another earthquake! ... s earthquake country and with a large earthquake registering between 6-7.5 every thirty to fifty years a lifetime resident of Washington is almost guaranteed to be in at least one.To be prepared in an earthquake it is impor... Wordcount: 1732 Pages: 7 Bibliography
Earthquake
The land below us is always in motion. Plate tectonics studies these restless effects to give us a better understanding of the Earth and its past. New molten rocks are poured out in the form of magma from the mid-ocean ridges. The rock is recycled and re-entered back into the earth in deep ocean trenches through convection current. The convection current in the mantle drives plates around either against or away from each other. These collisions give rise to earthquakes, volcanoes, mountains, an ... These collisions give rise to earthquakes, volcanoes, mountains, and continental drift. ... There are three types of boundaries where plates meet: divergent boundaries -- the upwelling of magma; convergent boundaries where the plates collide producing mountains, volcanoes, and earthquakes; and transform boundaries -- lateral m! ... One of the most destructive forces the plates generate are earthquakes. There are earthquakes occurring every day of different intensity and magnitude, from 500,000 per year at a Richter scale of 1, to one every few years at a Richter scale of about 8. ... Wordcount: 2665 Pages: 11
The Causes of Tsunami
As the earth begins to tremble many fear the troubles ahead. Waves are suddenly being formed and the people of the west coast are immediately alerted. What could this be? This is a tsunami, an earthquake that is formed underwater. The sea floor abruptly deforms and displaces the overlying water from its equilibrium position. Waves are formed when the displaced water mass, acting under the influence of gravity, attempts to regain its equilibrium. The main factor that determines the initial ... This is a tsunami, an earthquake that is formed underwater. ... A tsunami that is caused by an undersea earthquake is also called a seismic sea wave. ... An earthquake on land differs greatly than one underwater. ... In addition to earthquakes similar ground shaker plays a key part in the causes of tsunamis. ... Along with earthquakes and landslides, arise another cause to the tidal wave is volcanic eruptions. ... Wordcount: 701 Pages: 3
The Killer Quake of 1906
The Earthquake of 1906On the morning 12 past 5:00 San Francisco suffered a major earthquake that killed 3000 people, the earthquake lasted for about 40 seconds and was recorded at 8.3 on the Richter Scale. People ran from there houses and some stayed inside the buildings and were crushed. The people ... The Earthquake of 1906On the morning 12 past 5:00 San Francisco suffered a major earthquake that killed 3000 people, the earthquake lasted for about 40 seconds and was recorded at 8.3 on the Richter Scale. ... The old buildings were never made to withstand earthquakes and easily crumbled and fell crushed people. ... The buildings were made out of unreined forced brick or wood which couldn't withstand a earthquake of that magnitude. ... Scientists found out that the earthquake originated north of Oregon and south to Los Angeles a total of 1170 Km. ... The two slide together caused the eart... Wordcount: 410 Pages: 2