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swift chpt 6.2

chpt 6.2

earthquake the shaking that results from the movement of rock under Earth's surface
focus the point beneath Earth's surface where rock breaks under stress and causes an earthquake
epicenter the point on Earth's surface directly above the focus
p wave a type of seismic wave that compresses an expands the ground
s wave a type of seismic wave the moves the ground up and down or side to side
surface wave a type of seismic wave that forms when p waves and s waves reach the surface
Mercalli scale a scale that rates earthquakes by their intensity and how much damage they cause on a particular place
magnitude the measurement of an earthquakes strength based on seismic waves and movement along faults
Richter scale a scale that rates an earthquakes magnitude based on the size of its seismic waves
seismograph a device that records ground movements caused by seismic waves as they move through Earth
moment magnitude scale a scale that rates earthquakes by estimating the total energy released by and earthquake
Created by: dswift