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Earthquake

key earthquake vocab.

QuestionAnswer
Earthquake a series of vibrations indvced in the earth's crust
Curst outer layer of the erath- we live on it
Fault fracture in the earth's crust along which there has been movment
Mantle layer that lies under the earth's crust
Lithosphere mantel and the crust make this layer
Lithospheric Plates large pecies of the Lithosphere that are always moving
Seismologist the scientist that study the earthquake
P-wave A type of seismic wave that compresses and expand the ground
S-waves A type of seismic wave that moves the ground up and down or side to side
Suface wave A seismic wave that form when p-wave and S-wave reachers the Earth's surface
Seimic waves Vibrations that travel through earth carrying the energy released during an earthquake
Focus Point at wich a rock under stress breaks and triggers an earthquake
Epicenter The point on the surface above the focus
Seismograph A device that recordscthe ground movmets
Magnitude The measurement of an earthquake's strengthbased on seismic waves
Richter scale A scale that rates an earthquake magitude based on the size of its seismic wave
Mercalli scale A scale that rates earthquakes according to their intensity and how much damge they cause at a particular time and places
Moment magnitude scale A scale that rates earthquakes bt estimating the total energy released by an earthquakes
Liqufaction The prosses in which an earthquake violent shaking turns loose
Aftershock Earthquake that occurs after a large earthquake in the same area
Tsunamis Large ocean wavesusually caued by strong earthquakebelow the ocean floors
Created by: Halloween29
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