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  • One Other Category Of Tectonic Earthquake
    889 words
    Earthquakes are vibrations produced in the earth's outer layer, or crust, when forces pushing on a mass of rock overcome the friction holding the rock in place and blocks of rock slip against each other. The vibrations can range from barely noticeable to very destructive. There are six types of shock waves. Two are classified as body waves which means they travel through the earth's interior and the other four are surface waves. The waves are changed by the rock types or formations they hit. Pri...
  • Rock In An Earthquake Causes Shock Waves
    687 words
    What is an Earthquake? An Earthquake is the shaking of the earth's surface caused by rapid movement of the earth's rocky outer layer. The sudden shaking of the ground that occurs when masses of rock change position below the Earth's surface is called an earthquake. The shifting masses send out shock waves that may be powerful enough to alter the surface of the Earth, thrusting up cliffs and opening great cracks in the ground. Earthquakes, called temblors by scientists, occur almost continuously....
  • Tidal Wave And A Fire
    1,173 words
    The earthquake began at 9: 30 on November 1st, 1755, and was centered in the Atlantic Ocean, about 200 km WSW of Cape St. Vincent. The total duration of shaking lasted ten minutes and was comprised of three distinct jolts. Effects from the earthquake were far reaching. The worst damage occurred in the south-west of Portugal. Lisbon, the Portuguese capital, was the largest and the most important of the cities damaged. Severe shaking was felt in North Africa and there was heavy loss of life in Fez...
  • Surface Of The Earth By Earthquake Waves
    5,727 words
    EARTHQUAKE REFERENCE FILES Earthquake, shaking of the earths surface caused by rapid movement of the earths rocky outer layer. Earthquakes occur when energy stored within the earth, usually in the form of strain in rocks, suddenly releases. This energy is transmitted to the surface of the earth by earthquake waves. The study of earthquakes and the waves they create is called seismology. Scientists who study earthquakes are called seismologists. (Websters p. 423) The destruction an earthquake cau...
  • Damage Caused By Hurricanes High Winds
    2,885 words
    earthquake, trembling or shaking movement of the earth's surface. Most earthquakes are minor tremors. Larger earthquakes usually begin with slight tremors but rapidly take the form of one or more violent shocks, and end in vibrations of gradually diminishing force called aftershocks. The subterranean point of origin of an earthquake is called its focus; the point on the surface directly above the focus is the epicenter. The magnitude and intensity of an earthquake is determined by the use of sca...
  • Cause Earthquakes
    5,728 words
    An Earthquake is a sudden tremor or movement of the earth's crust, which originates naturally at or below the surface. The word natural is important here, since it excludes shock waves caused by French nuclear tests, man made explosions and landslides caused by building work. THERE ARE TWO MAIN CAUSES Firstly, they can be linked to explosive volcanic eruptions; they are in fact very common in areas of volcanic activity where they either proceed or accompany eruptions. Secondly, they can be trigg...
  • Waves From An Earthquake
    1,626 words
    POWER OF THE QUAKE Jason Conley Professor Tim Born Earth Science-ES 101020 February, 2002 Power of the quake When humans are under tremendous pressure, they are told that they should try and relieve some stress. The same is true of mother earth when she is under a terrible strain; she has to relieve some stress, only Earths version of blowing off some steam is very deadly and extremely terrifying. An earthquake is a vibration of the Earths surface that follows a release of energy in the Earths c...
  • Impact Of The Tsunami Disaster
    4,158 words
    TSUNAMI DISASTER, WHAT IMPLICATION ON ECONOMIC SYSTEM IN THIS REGION? We view with awe a release of power on this scale. We know that this power is greater than that of our species - nature holds us in its hands. We may be able to mitigate some of the consequences; in some cases we may be able to give advance warning of the threat; but we are not in control; the tsunami has demonstrated this ancient truth. William Rees-M ogg INTRODUCTION 1. On the morning of December 26, 2004 a magnitude 9.3 ear...
  • Earthquakes And Its Effects
    1,151 words
    EARTHQUAKES Objective: To define and discuss earthquakes and its effects. Earthquakes are a major catastrophe and can be a big threat to human lives. To understand earthquakes you must have a clear definition, know its mechanisms, be able to recognize the size and dynamics and understand its effects: I. Definition of Earthquakes. Earthquakes. Tsunamis. Landslides. Volcanoes II. Mechanisms. Faults b. Seismic Waves. Aftershocks. Size. Strength. Classification of Seismic Waves 1. P (compressional) ...
  • One Earthquake Of Magnitudes 8 To 9
    2,283 words
    I chose to research earthquakes and the prediction of earthquakes because I was curious as to how they work. In this paper, Iwill discus the history of earthquakes, the kinds and locations of earthquakes, earthquake effects, intensity scales, prediction, and my own predictions. An earthquake can be defined as vibrations produced in the earth's crust. Tectonic plates have friction between them which builds up as it tries to push away and suddenly ruptures and then rebounds. The vibrations can ran...
  • Successful Earthquake Prediction
    1,066 words
    Earthquakes have plagued our lives for as long as people have inhabited the earth. These dangerous acts of the earth have been the cause of many deaths in the past century. So what can be done about these violent eruptions that take place nearly with out warning Predicting an earthquake until now has almost been technologically impossible. With improvements in technology, lives have been saved and many more will. All that remains is to research what takes place before, during, and after an earth...
  • Surface Of The Earth By Earthquake Waves
    1,437 words
    Earthquakes Earthquakes, one of the most destructive natural phenomena, consist of rapid vibrations of rock near the earth's surface. Because of their unpredictable occurrence and enormous capacity of destruction, they have brought fear to mankind since ancient times. A single shock usually lasts no more than a few seconds, but a series of smaller quakes may last for as long as five minutes. The quake felt on the surface is always the result, not the cause of some underground geologic process, a...
  • Tsunami's Speed
    575 words
    A tsunami is a wave train, or series of waves, generated in a body of water. Earthquakes, landslides, volcanic eruptions, explosions, and even the impact of cosmic bodies, such as meteorites, can generate tsunamis. These waves can savagely attack coastlines, causing devastating property damage and loss of life. In English, the word tsunami means "harbor wave". Represented by two characters, the top character, "tsu", means harbor, while the bottom character, "nami", means "wave". In the past, tsu...
  • Tsunami And The Earthquake
    521 words
    TSUNAMIS There are Earthquakes, Volcanoes, Floods, Fires and Avalanches. Then there are Tsunamis, The often overlooked stress relief system of the earth. Tsunamis are huge waves often called Tidal Waves but they have nothing to do with the diurnal pattern of high and low tides. Tsunami is a Japanese word used as the scientific term for seismic sea wave, a large ocean wave caused by an undersea earthquake. One theory is that the waves are triggered when the ocean floor is tilted or offset during ...
  • Earthquakes Richter Scale
    3,278 words
    An earthquake is one of the most terrifying phenomena that nature can dish up. We generally think of the ground we stand on as "rock-solid" and completely stable. An earthquake can shatter that perception instantly, and often with extreme violence. Up until relatively recently, scientists only had unsubstantiated guesses as to what actually caused earthquakes. Even today there is still a certain amount of mystery surrounding them, but scientists have a much clearer understanding. There has been ...
  • Major Earthquake Zones
    1,603 words
    Do you know how earthquakes arise? Things such as Elastic Rebound theory, Major earthquake zones, How big seismic waves are, locating earthquakes, earthquake measurement, Destruction to buildings and properties, Tsunamis, Earthquake warnings and predictions, and earthquake safety, all have a part in preparing and knowing how to deal with a earthquake situation; also knowing what makes a earthquake come to pass. Geologists explain many earthquakes by the elastic rebound theory. According to this ...
  • San Francisco Earthquake
    909 words
    Earthquakes occur throughout the world but the vast majority of them develop along narrow belts. These belts are tens to thousands of kilometres long and mark the boundaries on the Earth's surface. The belts are considered very active geological wise. Earthquakes occur when rocks rupture under the pressure created by continues movement and collision of thin jigsaw-like tectonic plates found under the Earth's surface. Seismic waves (vibrations) are then created and proceed outwards in all directi...

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