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Chapter 19Earthquake

Earthquake vocabulary

QuestionAnswer
seismology the study of earthquakes
deformation the bending, tilting, and breaking of the Earth's crust; the change in the shape of rock in response to stress
elastic rebound the sudden return of elastically deformed rock to its undeformed shape
seismic wave a wave of energy that travels through the Earth, away from an earthquake in all directions
p wave a seismic wave that causes particles of rock to move in a back and forth direction
s wave a seismic wave that causes particles of rock to move in a side to side direction
seismograph an instrument that records vibrations in the ground and determines the location and strength of an earthquake
seismogram a tracing of earthquake motion that is created by a seismograph
epicenter the point on Earth's surface directly above an earthquake's starting point, or focus
focus the point along a fault at which the first motion of an earthquake occurs
Created by: momwilliam
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