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Chapter 8 and 10 voc

earthquake vibration of earth
focus point where earthquakes start
seismic waves waves of energy released by an earthquake
epicenter point on Earth's surface directly above the focus
elastic rebound sudden return of deformed rock back to under formed shape
body waves seismic waves that move through the inside of earth
P waves push-pull body waves
S waves side to side body waves
surface waves seismic waves that move on earths surface
seismograph seismic waves recorded
seismogram vibrations traced
Richter Scale numerical scale based on height
Moment Magnitude small shallow earthquakes used
Modified Mercalli scale measures intesity
liquefaction soil and rock are saturated with water earthquakes
tsunami a wave formed when the ocean
seismic gap an area along a fault where there is not been any earthquake activity for a long period of time
crust the thin rocky the thin outer layer of earth
mantle a solid rocky shell that extends to a depth
outer core liquid layer 2260 kilometers
inner core sphere having a radius of 1220
Moho the name of a boundary
Ring of Fire volcanoes and earthquakes are concentrated along the pledge of the pacific ocean
hot spot volcanic areas for plate boundaries
viscosity substance resistance to flow
vent opening to surface
pyroclastic material particles produced in volcanic eruptions
volcano repeated eruptions of lava building up to the mountain
crater steep walled depression
shield volcano broad slightly domed structures that resembles a warriors shield
caldera volcanic landforms
lahar water soaked volcanic ash
pluton cooling and hardening of magma
sill a pluton where magma flows between parrell layers of rock
laccolith a lens shape pluton
dike a pluton that forms when magma moves into fractures that cut across rock layers
batholith large bodies of intrusive igneous rock
Created by: 2008758