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PSQ4W6AES

EARTHQUAKES

QuestionAnswer
Earthquake a vibration in the Earth's crust caused by plate movement.
Compressional forces forces that result when things are squeezed together
Shear forces forces that happen as plates slide past each other; transform boundaries often experience shear forces.
Tensional forces forces that happen as plates are torn apart; divergent boundaries often experience tensional forces.
Fault structure that forms as a result of rock layers that move from an earthquake
Strike-slip fault type of fault that results from two plates moving past one another; caused by shearing forces.
Normal fault type of fault that results from plates moving apart; caused by tension forces.
Reverse/thrust fault type of fault that results from plates moving together; caused by compression forces.
Seismic waves waves of energy released by an earthquake
Seismologist scientist who studies earthquakes
Infrastructure roads, subways, railroads. Bridges; city planners try to build their infrastructure to resist earthquake damage.
Epicenter center where an earthquake originates
Primary waves waves that are first detected by seismographs; fastest waves.
Seismograph machine that detects waves produced by earthquakes
Secondary waves waves that come after primary waves
Surface waves waves from an earthquake, when they reach the surface of the Earth; slower than P or S waves.
Rayleigh waves surface waves that travel in a circular motion
Love waves surface waves that travel in a horizontal motion
Magnitude measures how strong an earthquake is
Tsunamis very large ocean waves produced by an earthquake
Richter Scale scale developed to show how much energy is released by an earthquake
Catastrophe a terrible disaster
Escalate to increase in amount
Created by: Ruth.Miller
Popular Physical Science sets

 

 



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