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Earthquakes

Earth Science

TermDefinition
Earthquakes The shaking that results from the movement of rock beneath Earth's surface
Crust The layer of rock that forms Earth's outer surface
fault A break or crack in earth's lithosphere along which the rocks move
mantle The layer of hot, solid material between earth's crust and core
lithosphere a rigid layer made up of the uppermost part of the mantle and the crust
lithospheric plates Tectonic plates
seismologists the science or study of earthquakes and their phenomena.
Divergent when two plates slide away from each other
Convergent two plates coming together
Transform when two plates slide past each other
subduction The process by which oceanic crust sink beneath a deep ocean trench and back into the mantle at a convergent boundary
s-wave A type of seismic wave that moves the ground up and down or side to side
p-wave A type of seismic wave that compresses and expands the ground
surface wave A type of seismic wave that forms when P waves and S waves reach Earth's surface
focus The point beneath Earth's surface where rock breaks under stress and causes an earthquake
epicenter The point on Earth's surface directly above an earthquake's focus
mercalli scale A scale that rates earthquakes according to their intensity and how much damage they cause at a particular place
richter scale A scale that rates an earthquakes magnitude based on the size of its seismic waves
moment magnitude scale
convection
magnitude
tsunami
liquefaction
aftershock
seismology
seismograph
compression
tension
plateau
shearing
normal fault
reverse fault
Created by: 1966041764
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