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QuestionAnswer
The point beneath Earth’s surface where rock breaks under stress and causes an earthquake. focus
Point on the Earth’s surface directly above the earthquake’s focus epicenter
vibrations that travel through the earth carrying the energy released during an earthquake seismic waves
(P=Primary) A type of seismic wave that compresses and expands the ground. It is the fastest seismic wave. P-Wave
(S=Secondary) A type of seismic wave that moves the ground up and down or side to side. S-waves are slower than P-waves and cannot travel through a liquid. S-wave
Type of seismic wave that forms when P and S waves reach Earth’s surface. Causes the most damage. surface wave
A machine that records ground movements caused by seismic waves as they move through the Earth. seismograph
Measurement of earthquake strength based on seismic waves and movement along faults. magnitude
A scale that rates earthquakes according to how much damage they cause at a particular place. Mercalli Scale
*Scale for measuring earthquakes, *Each step in scale is 10 times more powerful than the step below. Richter Scale
A rating system that estimates the total energy released by an earthquake. Used today. moment magnitude scale
Created by: copelandade12
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