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6.4 Earthquakes

Earthquakes

TermDefinition
P wave Primary wave that moves vertically and moves faster than secondary wave
S wave Secondary wave that moves horizontally and moves slower than primary waves
Oceanic Thinner, more dense type of crust
Continental Type of crust that is Thicker and less dense
Inner core Solid, made of solid iron and nickel
Mantle Earth's interior - made of molten rock
Earthquake Movement of the Earth's crust caused by tectonic plate movement
Pangaea The supercontinent
Convergent Type of boundary where two plates move toward one another
Mountains Form when two continental plates converge
Trench Forms when two oceanic plates converge at a subduction zone
Divergent Type of boundary where two plates move away from one another
Mid ocean ridge Forms when two oceanic plates move away from one another
Transform Type of boundary where two plates slide in opposite directions
Hot spot An area where magma seeps up through a plate (like Hawaii)
Subduction When a dense oceanic plate slides beneath another plate, causing it to go deep into the mantle
Ring of Fire The name of the area around the Pacific plate where there is a lot of volcanic activity because of the faults
Sea floor New _____ is made when two oceanic plates diverge
Atlantic A divergent plate boundary in the Atlantic Ocean is called the Mid - _____ Ridge
Magnitude The measure of the amount of energy is released by an earthquake
Intensity The measure of the amount of damage done to people, structures, and the environment
Tsunami Giant wave that can form from an earthquake
Evidence of Pangaea Scratches from glaciers, ancient mountain chains, plant fossils, animal fossils, rocks of the same age.
Crust Uppermost layer of the earth, cool and cracked
Created by: BTLanigan
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