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Chapter 19 vocab

TermDefinition
stress total force acting on crustal rocks per unit of area
strain deformation of materials in response to stress
elastic deformation material is compressed, bent, or streched
plastic deformation stress builds up past certain point
fault fracture or system of fractures
seismic wave vibrations of the ground
primary wave squeeze and push rocks in the direction along the waves are moving
secondary wave named with respect to their arrival times
focus point where the waves originate
epicenter point on Earth's surface directly above the focus
seismometer detected by sensitive instruments
seismogram record produced by seismometer
richter scale devised by geologist named Charles Richter
magnitude produced during earthquake
amplitude numbers in Richter scale
moment magnitude scale rating scale that measures the energy released by an earthquake
modified mercalli scale rates types of damage and other effects of earthquake
soil liquefaction can generate landslides
tsunami large ocean wave
seismic gap sections located along faults that are known to be active
Created by: JakeMcGarity
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