Title: Earthquake Epicenter Lab Problem: How can we use seismic waves to determine the epicenter of an earthquake? Hypothesis: By using the arrival time of P-waves and S-waves from seismic stations‚ I can determine the epicenter of an earthquake. Data and Observations: After you have recorded the data for the seismographs you selected to review (Step 3 in the lab)‚ take a screenshot of your completed data table (or print it and send it directly to your instructor). You should also take a screenshot
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ground motion produced by seismometer -shows arrival time of the different types of seismic waves Magnitude- measure of the amount of ground shaking caused by an earthquake e.g. Richter Scale measures magnitude Focus- where earthquake originates inside Earth Epicentre- location on the surface of Earth directly above the focus SEISMIC WAVES: 2 types o Body waves (P-wave & S wave) o Travel in a curved direction through Earth
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becomes massive pressure on the fault lines resulting in the fault lines giving way‚ and plates move over‚ against or apart from each other.There is then a earthquake at this point. In the form of seismic waves (like water ripples) the escaping energy radiates outward from the fault in every directions. The seismic waves shake the earth as they move through it. When the waves reach the earth’s surface‚ it shakes everything on it causing houses to fall and roads to crack. There are three different types
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Block Diagrams are both of these. Earthquakes Know definitions related to earthquakes: focus‚ epicenter‚ seismic waves‚ etc. Know the three types of waves discussed in lab‚ how they transfer their energy‚ how fast they are‚ what they can travel through‚ etc. Surface Waves: Love Waves- side to side Raleigh Wave Body Waves: P waves- compressional S waves- up an down Seismic
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Earth’s material. When earthquakes shake and shatter rock within the Earth‚ they create seismic waves which travel outward from the location of the quake through the body of the Earth. Seismic waves are disturbances inside the Earth that slightly compress rock or cause it to vibrate up and down. The velocity and characteristics of the waves depend on the type of rock or molten material they traverse. Studies of seismic waves have revealed two important types of layering in the Earth: chemical and physical
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August 23‚ 2011 at 1:51pm an earthquake occurred with its epicenter located in Mineral‚ Virginia. An earthquake’s seismic waves travel between 2-8 kilometers a second. Social media was spreading the news of this earthquake at a rate of 5‚500 posts per second. The rate at which the news was spreading gave thousands of people the advantage of knowing about the earthquake before the seismic waves had reached their area. The first social networking post‚ which reached users 30-40 seconds before the earthquake
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Richter of the Californian institte of technology developed a method to record and measure seismic activity with seismograms. By using his observations and mathematical techniques‚ he developed the Richter scale‚ Which is a Logarithmic scale‚ that increases exponentioally the greater the magnitude of an earthquake. Richter proved that the further
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plate can undergo: Tension‚ compression‚ and shearing. With this pressure‚ the rocks begin to bend and stretch. When the rock cannot be stretched any farther‚ it eventually gives way and breaks. This breaking movement releases energy in the form of seismic waves. These waves travel‚ harming everything in their paths. If this action happens undersea‚ another disaster can take place: a tsunami. Sometimes known as a killer wave‚ this huge surge of water is the product of two forces colliding. Earthquakes
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William Copley 7th grade Science Project 3/21/2016 2015 Earthquake in Chile On September 17th‚ 2015 a powerful earthquake that shook Chile. It was said to have a magnitude of 8.5‚ killing about 5 people‚ injuring many‚ and destroying hundreds of homes‚ businesses‚ and land mass. Along with the damage came the after mass of power loss‚ damage‚ and flooding along with tsunamis. There were 12 aftershocks that could be felt 145 miles away from the originating site. Chile is known to have earthquakes
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Recording the Earth’s Seismic Activity In general‚ the map that contained all the earthquake distributions mostly had shallow quakes spread around. Deep quakes on the map were a lot less common. I would estimate that about 85%-90% of the earthquakes were shallow quakes. There were only three earthquakes on the map that had a magnitude of 7.0 or greater. The earthquakes that appeared to have occurred along spreading zones made up about 80% of the earthquakes on the map. Earthquakes that have
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