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100
a sudden and violent shaking of the ground. Sometimes causing great destruction
What is EARTHQUAKES
100
Dissolved amounts of viscosity that determines the explosiveness of magma
What is GASES
100
a type of elastic wave called seismic waves.
What is PRIMARY WAVE-
100
H2O.
What is WATER
100
Vent in the Earth’s crust through which molten rock flows
What is VOLCANO-
200
Large,steep sided volcano that results from explosive eruptions of andesite and rhyolitic s lavas
What is COMPOSITE VOLCANO-
200
Volcano that is not associated with a plate boundary
What is MERCALLI SCALE
200
To cause to disperse or disappear
What is DISSOLVED
200
Volcano that is not associated with a plate boundary
What is HOT SPOT-
200
Liquid’s ability to flow
What is VISCOSITY
300
Large volcano with gentle slope of basaltic lava
What is SHIELD VOLCANO
300
P-wave fastest-moving type of seismic wave-causes push-pull motion
What is CALDERA
300
Magma that is rich in silica forms when the mantle mixes
What is CONTINENTAL CRUST
300
Boundary where one tectonic plate descends into the mantle and partially melts
What is CONVERGENT
300
The main chemical in magma
What is SILICA
400
Molten rock that erupts onto Earth’s surface
What is LAVA
400
Boundary where two tectonic plate separate
What is DIVERGENT
400
Magma with high silica content
What is ANDESITE
400
S-wave causes particles in the ground to move side to side and up and down at right angles
What is SECONDARY WAVE-
400
Tiny particles of pulverized volcanic rock and glass
What is VOLCANIC ASH-
500
Based partly on the earthquake history of an area
What is EARTHQUAKE RISK
500
A measure of earthquake magnitude
What is RICHTER SCALE
500
A warming of the surface water of the eastern and central Pacific Ocean
What is PACIFIC
500
Molten rock below Earth’s surface
What is MAGMA
500
The point where an earthquake begins
What is FOCUS
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