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Earthquake vocab.

QuestionAnswer
The shaking and vibrating of earth caused by sudden releases of energy Earthquake
the outtermost layer of the earth-we live on it crust
a break or crack in Earth's lithosphere along which rocks move fault
a layer of the earththat lies beneath the crust mantle
a rigid layer made up of the uppermost part of the mantle and the crust lithosphere
sciectests who study earthquakes seismologists
large pieces of the lithosphere that are always moving lithosphere plates
Are vibrations that travel throigh earth carrying the energy released by an earthquake Seismic waves
Shakes buildings violently Surface wave
Causes buildings to contract and expand P wave
Shakes buildings from side to side S wave
The point at which rock under stressbreaks and triggers an earthquake Focus
The point on the surface directly above the focus Epicenter
A device that records the ground movements caused by seismic waves Seismograph
The measurement of an earthquakes strength based on seismic waves and movement along faults Magnitude
A scale that rates an earthquake's magnitude based on the size of its seismic waves Richer scale
A scale that rates earthquakes according to their intensity and how much damage they cause at a particular place Merecalli scale
A scale that rates earthquakes by estimating the total energy released by an earthquake Moment magnitude scale
The process which an earrhquakes violent shaking turns loose soft soil into liquid mud Liquefactipn
An earthquake that occurs after a largeeathquake in the same area Aftershock
Large ocean waves usualy causedby strong eathquakes beneaththe ocean floor Tsnami
Is designed to reduce the amount of energy that reaches the building during the earthquale Base isolated building
A force that tends to stretch something Tension
Increased in pressure Compression
Stress that pushes a mass of rock in 2 opposite directions Shearing
There is little up or down motion Strike slip fault
The hanging wall slides up and over the footwall Reverse fault
The hanging wall slips downward below the footwall Normal fault
A large area of flatland elevated above sea level Plateau
Created by: Margaret132
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