EARTHQUAKE - EarthQuake 1 Earthquakes Tiffany Lyons SCI/245...

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EarthQuake 1 Earthquakes Tiffany Lyons SCI/245 May 30, 2010 LINDA MARION
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Earthquake 3 Earthquakes An earthquake occurs when two tectonic plates collide, or rub with each other which causes a tremendous amount of force being released that spreads in a wave manner just how you would throw a rock in a pond and the ripples spreading out in all directions. Underneath the earths crust, there is pressure from all the energy and magma contained that it’s trying to find a way out through an open fissure or ridge and that pressure being released cause movement of the tectonic plates, and therefore the earth moves with shakes and quakes. A seismometer is an instrument that senses the earth's motion; a seismograph combines a seismometer with recording equipment to obtain a permanent record of the motion. From these record scientists can calculate how much energy was released in an earthquake, which is one way to decide its magnitude. Calculations are made from several different seismograms, both
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This note was uploaded on 06/28/2010 for the course SCI 230 SCI/230 taught by Professor Trevorklein during the Spring '10 term at University of Phoenix.

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EARTHQUAKE - EarthQuake 1 Earthquakes Tiffany Lyons SCI/245...

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