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Chapter 8 & 10 vocab

TermDefinition
Earthquake Movements of the ground due to sudden release of energy
Focus Point in Earth's interior where an earthquake occured
Seismic waves Waves of energy released by an earthquake
Epicenter Point on Earth's surface directly above the focus
Elastic rebound Sudden return of deformed rock back to undeformed shape
Body waves Seismic waves that move through the inside (body) of Earth
P waves Push-pull body waves
S waves Side to side body waves
Surface waves Includes side to side and rolling elliptical waves
Seismograph Records seismic waves
Seismogram Records vibrations
Richter Scale Numerical scale (1-?) based on height of largest seismic wave(magnitude)
Moment Magnitude Scale
Modified Mercalli Scale Roman numerical scale(I-XII) that measures the intensity (ground shaking) created by an earthquake
Liquefaction A 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 buildings
Tsunami The Japanese word for a seismic sea wave
Seismic gap An area along a fault where there has not been any earthquake activity for a long period of time
Crust The thin, rocky outer layer of Earth
Mantle The 2890-kilometer-thick layer of Earth located below the crust
Outer Core A layer beneath the mantle about 2260 kilometers thick; The outer core contains liquid iron and generates Earth's magnetic field
Inner Core The solid innermost layer of Earth, about 1220 kilometers in radius
Moho The Mohorovicic discontinuity, which is shortened to Moho; It is the boundary separating the crust and the mantle, discernible by an increase in the velocity
Ring of Fire Volcano belt the rims the Pacific Ocean
Hotpsot A concentration of heat in the mantle capable of producing magma, which rises to
Viscosity
Vent
Pyroclastic material
Volcano
Crater
Shield Volcano
Cinder Cone
Composite Volcano
Caldera
Lahar
Pluton
Sill
Laccolith
Dike
Bathholith
Created by: 2008658
Popular Earth Science sets

 

 



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