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100
A measure of earthquake magnitude.
What is RICHTER SCALE
100
Molten rock below Earth’s surface
What is MAGMA
100
Vent in the Earth’s crust through which molten rock flows
What is VOLCANO
100
Molten rock that erupts onto Earth’s surface
What is LAVA
100
To cause to disperse or disappear
What is DISSOLVED
200
S-wave causes particles in the ground to move side to side and up and down at right angles
What is SECONDARY WAVE-
200
Is a depression formed when a volcano’s summit collapse or is blown away by an explosive eruption
What is CALDERA
200
H20
What is WATER
200
The point where an earthquake begins
What is FOCUS
200
A measure of damage done by an earthquake
What is MERCALLI SCALE
300
Dissolved amounts of viscosity that determines the explosiveness of magma
What is GASES
300
Tiny particles of pulverized volcanic rock and glass
What is VOLCANIC ASH
300
The main chemical in magma
What is SILICA
300
Liquid’s ability to flow
What is VISCOSITY
300
Small, steep-sided volcano that erupts gas-rich, basaltic lava.
What is CINDER CONE VOLCANO
400
Magma that is rich in silica forms when the mantle mixes
What is CONTINENTAL CRUST
400
Large, steep sided volcano that results from explosive eruptions of andesite and rhyolitic s lavas
What is COMPOSITE VOLCANO-
400
Volcano that is not associated with a plate boundary
What is HOT SPOT
400
A flow of fast-moving cloud of ash, hot gases, and rock that explodes from an erupting volcano
What is PYROCLASTIC FLOW
400
P-wave fastest-moving type of seismic wave-causes push-pull motion
What is PRIMARY WAVE
500
Boundary where two tectonic plate separate
What is DIVERGENT
500
Based partly on the earthquake history of an area
What is EARTHQUAKE RISK
500
Large volcano with gentle slope of basaltic lava
What is SHIELD VOLCANO
500
Boundary where one tectonic plate descends into the mantle and partially melts
What is CONVERGENT
500
The area of earthquake and volcano activity around the Ring of Fire.
What is PACIFIC
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