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Earthquakes & PB

Earthquakes and Plate Boundaries - Chapter 6 Flashcards

QuestionAnswer
earthquake rupture or sudden movement of rocks along a fault
elastic strain energy stored as a change in shape
focus location at which the fault ruptured to cause an earthquake
seismic waves waves of energy produced by an earthquake
epicenter point at the surface directly over the focus of an earthquake
primary waves first waves of an earthquake - compression
secondary waves shear waves, vibrate perpendicular to the direction of wave travel
seismograph instrument used to record and measure seismic waves
seismogram record of the vertical up and down motion of an earthquake
liquefaction the process of making loose sediment shake like a liquid
tsunami ocean waves caused by an earthquake
Created by: pbush
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