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earthquakes

TermDefinition
earthquake the shakings and vibratings of earth
crust the outer surface of earth
fault a fracture along which blocks of crust on either side have moved relative to one another parallel to the fracture
mantle the upper part of earth made by semi body rock called magma
litosphere the rigid part of earth consisting of the crust and upper mantle
lithospheric plates the regions of the earths crust and upper mantle
seismologist a person who study's earthquakes
convergent two plates that slides towards each other which make one plate slide under the other plate which goes over
divergent two plates that slide away from each other
transform Two plates that slide against each other
subduction the sideward and downward movement of the edge of a plate sliding under another plate
convection the movement of hot fluid goes up and the movement of cold fluid goes down while less dense material goes up and denser material goes down causing the transfer of heat
s wave shakes the ground side to side very intensely
p wave shakes the ground intensly
surface wave shakes the ground upwards
focus the spot under the epicenter
epicenter the center of an earthquake
Mercalli scale Measures the intensity of an earthquake
Richter scale Expresses the magnitude of the earthquake
moment magnitude scale measures or indicates the size of the earthquake
magnitude indicates the strength of the earthquake
tsunami a huge wave caused by an earthquake
liquidfaction where soil loses its stiffness and falls
aftershock a small earthquake after the main eq
seismology the study of earthquakes and seismic waves
seismagraph a machine that measures the details and records the eq
compression moving land of the earth together
tension pulls the land apart
plateau a large area of flat land elevated high above sea level
shearing two pieces slide towards each other
normal fault the hanging wall slips downward
reverse fault the hanging wall slips upward
Created by: 1966149856
Popular Earth Science sets

 

 



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