• causes of earthquake ppt

    Aftershocks ... Tsunamis are started by an earthquake on the ocean floor ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 1e4e3c-ZDRhN 178695 PPT. Tectonic activity • Stresses are caused by convection currents in the asthenosphere • Diverging convection currents in the asthenosphere caused by tensional forces in rifts (normal faults) • Converging convection currents in the asthenosphere – Sima to Sima (Oceanic to Oceanic plates) • Creating 9.0 earthquakes on the Richter scale • Convection currents in the asthenosphere – Sial to Sial … 1. When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the … Clipping is a handy way to collect important slides you want to go back to later. Earthquakes are caused by the sudden release of energy within some limited region of the rocks of the Earth. 2. Dams: The build-up of pressure due to the storage of a large amount of water in the reservoirs behind large dams is considered to be a potential cause of earthquakes. A geological fault is known as the displacement of plates of their original plane. The tectonic movement of large plates on the Earth’s crust is what causes earthquakes to occur. This causes building to sink and may cause landslides. You can change your ad preferences anytime. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. • Effects of earthquakes. Causes, Effects and Precautions against Earthquake, Earthquake causes and safety measurements, No public clipboards found for this slide. If you continue browsing the site, you agree to the use of cookies on this website. This type of movement causes the formation of mountain ranges, volcanos, and earthquakes. Of all these the release of elastic strain is the most important cause, because this form of energy is the only kind that can be stored in sufficient quantity in the Earth to produce major … The nature of earthquakes Causes of earthquakes. The primary cause of an earthquake is faults on the crust of the earth. Usually we only feel the bump and rattle of these waves. “A Fault is a break or fracture b/w two blocks of rocks in response to stress.” This movement may occur rapidly, in the form of an earthquake or may occur slowly, in the form of creep. Earthquakes are caused when a break in the Earth's surfa However, earthquakes cannot be detected and whenever they occur, they can cause massive damages to property and even kill people. Looks like you’ve clipped this slide to already. Volcanic activity can cause earthquakes, as can human activities like nuclear explosions carried out underground. This colorful and detailed PowerPoint and bundle explains the cause of earthquakes, the difference between magnitude (Richter Scale) and intensity (Mercalli Scale), how to triangulate an earthquake and the hazards associated with earthquakes. Usually we only feel the bump and rattle of these waves. Earth’s major earthquakes occur mainly in belts coinciding with the margins of tectonic plates. Measuring Earthquakes Ch. The lecture will be enhanced if the instructor presents … Requirements: The content should be presented as lecture. The tectonic plates are always slowly moving, but they get stuck at their edges due to friction. What causes an earthquake? Sometimes animals can hear the P waves of an earthquake. Where the crust is being compressed, reverse faulting occurs, in which the hanging-wall block moves up and over the footwall block – reverse slip on a gently inclined plane is referred to as thrust faulting. Can cause major damage … What we are looking for is key detail to explain what happened, with locations and analysis of how the north east coast of Japan has been affected. Tectonic earthquakes: The most common form of earthquakes, is caused by the movement of loose fragmented pieces of land on earth’s crust knowns as tectonic plates. year Earthquake in many cases, can cause great loss of life. 3.5-5.4 Often felt, but rarely causes damage. Scientists use seismographs to record earthquakes. Title: Prediction Of Earthquakes 1 Prediction Of Earthquakes A Geomatic Approach. Find PowerPoint Presentations and Slides using the power of XPowerPoint.com, find free presentations research about Causes And Effect Of Earthquakes PPT Now customize the name of a clipboard to store your clips. This is a list of earthquakes in 2020.Only earthquakes of magnitude 6 or above are included, unless they result in damage and/or casualties, or are notable for other reasons. Now customize the name of a clipboard to store your clips. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. ; Volcanic earthquake: The less prevalent compared to the tectonic variety, these earthquakes happen before or after the eruption of a volcano.It is caused when magma leaving the volcano is filled by rocks being pushed to the surface. You can change your ad preferences anytime. The second biggest earthquake on record was the 2004 Indian Ocean earthquake which caused a devastating tsunami. What factors may affect the damage caused by an ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 549bfb-MDc3O See our Privacy Policy and User Agreement for details. Describe how the contents of such kits help people survive the first days after an earthquake or volcanic eruption. This has long been apparent from early catalogs of felt earthquakes and is even more readily discernible in modern seismicity maps, which show instrumentally determined epicentres. Causes, Effects and Precautions against Earthquake, No public clipboards found for this slide. The tectonic plates are always slowly moving, but they get stuck at their edges due to friction. Earthquakes are caused by sudden tectonic movements in the Earth’s crust. An earthquake also has foreshocks. This quake, 7.2 on the Richter Scale, was the worst in half and century. • Causes of earthquakes The largest fault surfaces on Earth … Earthquakes are the vibrations of part of the earths crust. An earthquake is the shaking and vibration of the Earth's crust due to movement of the Earth's plates (plate tectonics). Here its possible causes , effects and hazards they cause are discussed. Learning Objectives: 1) To know the primary and secondary effects of earthquakes 2) To learn how we cope with earthquakes and eruptions 3) To understand why some countries find it harder than others to deal with natural hazards STARTER This is a disaster survival kit. This quake, 7.2 on the Richter Scale, was the worst in half and century. View and Download PowerPoint Presentations on Causes And Effect Of Earthquakes PPT. An S wave is slower than a P wave and can only move through solid rock. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. An earthquake is caused by a sudden slip on a fault. Earthquake causes damage to the building, bridges, dams… 2. The most common type of earthquake is caused when two different tectonic plates collide with one rolling over the other, driving it down into the mantle. Maximum intensities are indicated on the Modified Mercalli intensity scale and are sourced from United States Geological Survey (USGS) ShakeMap data. See our Privacy Policy and User Agreement for details. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Vibrations (earthquakes) occur as the deformed rock “springs back” to its original shape (elastic rebound). Earthquake is a tragedy to life and property. Effects of an Earthquake: 1. Earth scientists use the angle of the fault with respect to the surface (known as the dip) and the direction of slip along the fault to classify faults. If you continue browsing the site, you agree to the use of cookies on this website. Slippage at the weakest point (the focus) occurs. The collision or the slipping of the tectonic plates causes vibrations in the earth due to rapid release of energy. Earthquake in many cases can cause great loss of life. One primary effect 1. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. 1. • Causes of earthquakes • Effects of earthquakes 2. Celsius). Earthquakes are caused due to sudden lateral or vertical movements in the crust of the Earth. Earthquake Magnitude Earthquake Severity Richter Magnitude Earthquake Effects Less than 3.5 Generally not felt, but recorded. Causes of Earthquakes A presentation about the causes and effects of earthquakes. 3.5-5.4 Often felt, but rarely causes damage. Geological Faults. Most too small to notice After an earthquake the two most ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 571359-NzE4N Slippage at the weakest point (the focus) occurs. Browse earthquakes ppt resources on Teachers Pay Teachers, a marketplace trusted by millions of teachers for original educational resources. While an earthquake occurs only for a few seconds, the aftershocks can go on for days after that. 1. Submitted to : Prof. G.S. When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the … Looks like you’ve clipped this slide to already. The earthquake was caused by a sudden jolt as the Philippine 3. 2 Section 2 Measuring Earthquakes Every day there are about 8,000 earthquakes. Earthquake can also cause floods and landslides. Session 2: Causes of Earthquakes Earthquake Hazard and Emergency Management 2-4 Objective 2.1 Describe the basic structure of the earth’s interior. See our User Agreement and Privacy Policy. Earthquake Origin Causes and effects Lab goals In an earthquake, will all parts of a city suffer the same damage? Causes of Earthquake. What causes an earthquake? View Causes of Earthquakes....6.ppt from SCIENCE 295 at Montclair State University. An earthquake is the shaking and vibration of the Earth's crust due to movement of the Earth's plates (plate tectonics). Physical Causes The earthquake of Kobe at 546am on the 17th January 1995 was caused by the simple matter of the Philippine Plate being forced under the thicker and lighter continental plate the Eurasian. If you continue browsing the site, you agree to the use of cookies on this website. These vibrations pass through the earth’s surface in waves and cause the earthquake. Earthquake can also cause floods and landslides. Submitted by : Jaideep kaur tiwana The earthquake was caused by a sudden jolt as the Philippine 2 INTRODUCTION. … The collapse of mines has also been known to cause minor earthquakes. This causes building to sink and may cause landslides. Gill. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Learning Objectives What if you could explain where the earthquake and tsunami in Japan happened, what caused these events and describe some of the ways the north east coast of Japan has been affected. Submitted to: Prof. G.S back” to its original shape ( elastic rebound ) as lecture earthquakes.. Original educational resources vibrations ( earthquakes ) occur as the displacement of plates their... The basic structure of the Earth ’ S interior killed around 5,700 people the. To rapid release of energy is slower than a P wave and can only move through solid.... Causing orogeny collide ( mountain building ), earthquakes Scale and are from. Go on for days after an earthquake is caused by a sudden on! Measuring earthquakes Every day there are about 8,000 earthquakes orogeny collide ( mountain building ), earthquakes not. 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Collapse of mines has also been known to cause minor earthquakes 2 Section 2 Measuring Every. Cases can cause massive damages to property and even kill people or the slipping of the Earth 's how!

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