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earthqaukes #2

second set of earthqauke flashcards

tension is stress that pulls and stretches rock. makes rocks thinner in the middle. tension happens when two plates move apart.
compression stress that squeezes rocks. makes rocks fold or break. happens when two plates push together.
shearing stress that pushes rocks in opposite directions. makes rocks break, slip apart, or change shape. happens when two plates slip past eachother in opposite directions.
stress when earths plates move rocks are pushed and pulled.
earhtqauke is the shaking that results when rocks move inside earth. an earthqauke is caused by stress along a fault. stress increases until the rocks break and realese stored energy.
focus the place where rocks break and cause an earthqauke is called focus.
epicenter the point on the surface directly above the focus is called the epicenter.
Created by: _briannab44_