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science earthquakes

TermDefinition
convergent collide
Divergent To divide
transform to slide against each other
subduction the oceanic crust goes under the continental crust
S wave shakes buildings side to side
P wave causes buildings to contract and expand
Surface wave Shakes buildings violently
focus the point which a rock a rock under stress breaks and triggers an earthquake
epicenter the point right above the focus
Mercalli Scale senses how much damage the EQ is going to do
Richter Scale senses the magnitude
Moment Magnitude Scale senses the energy of the earthquake
Magnitude measurement of an earthquake
tsunami large ocean waves usually caused by earthquakes below the ocean floor
Liquifaction the process in which an earthquake's violent shaking turns loose soft soil into liquid mud
aftershock an earthquake that occurs after another earthquake
seismology study of earthquakes
seismograph an instrument that detects vibrations produced by a earthquake
compression stress that squeezes rock until it folds and breaks
tension stress that stretches rock so that it becomes thinner in the middle
plateau a land form that has high elevation and a more or less level surface
shearing stress that pushes masses of rock in opposite directions, in sideways movements
normal fault type of fault where the hanging wall slides downward; by tension in the crust
reverse fault a type of fault where the hanging wall slides upward: caused by compression in the Earth's crust
earthquake a sudden and violent shaking of the ground
crust
fault a fracture in the earth's crust
mantle layer of the earth beneath the crust
lithosphere a cool solid outer shell of the earth
lithospheric plates
Created by: 1972362147
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