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Chapter 8&10

earthquake The vibration of the earths produced by the rapid release of energy
focus the point within earths where an earthquake originate
seismic waves vibrations that travel through earth carrying the energy released during an earthquake.
epicenter the location on earths surface directly above the focus or origin ,of an earthquake
elastic rebound tendency for for deformed rock along an fault a spring back
body waves seismic waves that move through the inside body of earths
P waves push-pull body waves
S waves side -to -side body waves
surfaces waves seismic waves that move on earths surfaces
seismograph in instrument that records seismic waves
seismogram the record made by the seismograph
Richter Scale numerical scales (1-2)based on height of largest seismic waves (matitude)
Moment Magnitude Scale a more precise measure of earthquake magnitude than the Richter scale ,which is derived from the amount of displacement that occurs along a fault zone and estimate the energy released by an earthquake
Modified Mercalli Scale roman numerical scale that measure the intensity created by an earthquake
liquefaction an phenomenon ,sometimes associated with earthquakes ,in which soils and other unconsolidated materials saturated with water are turned into a liquid that is not able to support building
outer core
inner core
Ring of Fire
hot spot
pyroclastic material
shield volcano
cinder cone
composite volcano
Created by: 2011276
Popular Earth Science sets




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