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Seismic Waves and EQ

QuestionAnswer
Focus the place inside the earth where an earthquake begins, where the energy in an earthquake is released
fault large cracks in the ground caused by stress at plate boundaries
epicenter the point on Earth's surface directly above the focus
earthquake vibrations produced when rocks break along a fault
seismic wave waves caused by an earthquake
surface seismic waves that cause the most damage
surface seismic waves that move the ground side to side and in circles similar to an ocean wave
primary the first seismic waves to arrive
secondary the second seismic waves to arrive
primary seismic waves that move the ground up and down as they create a push and pull movement
secondary seismic waves that move the ground side to side
secondary seismic waves that CANNOT travel through a liquid (for example the outer core)
primary and secondary seismic waves that start at the focus
surface a combination of primary and secondary waves that have reached the surface of the earth
secondary another name for S waves
Created by: pamwarren
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