Earthquakes & Volcanoes
Earthquakes & Volcanoes
Earthquakes & Volcanoes
Earthquakes & Volcanoes
Earthquakes & Volcanoes
100
Causes vibrations in the ground that results from movement along breaks in the Earth’s lithosphere
What is Earthquake
100
To cause to disperse or disappear
What is DISSOLVED
100
Tiny particles of pulverized volcanic rock and glass
What is VOLCANIC ASH
100
Molten rock that erupts onto Earth’s surface
What is LAVA
100
The main chemical in magma
What is SILICA
200
DIVERGENTBoundary where two tectonic plate separate
What is DIVERGENT
200
P-wave fastest-moving type of seismic wave-causes push-pull motion
What is PRIMARY WAVE
200
Dissolved amounts of viscosity that determines the explosiveness of magma
What is GASES
200
Based partly on the earthquake history of an area
What is EARTHQUAKE RISK
200
Large,steep sided volcano that results from explosive eruptions of andesite and rhyolitic s lavas
What is COMPOSITE VOLCANO
300
The area of earthquake and volcano activity around the Ring of Fire
What is PACIFIC
300
depression formed when a volcano’s summit collapse or is blown away by an explosive eruption
What is CALDERA
300
Magma that is rich in silica forms when the mantle mixes
What is CONTINENTAL CRUST
300
The point where an earthquake begins
What is FOCUS
300
Small,steep-sided volcano that erupts gas-rich, basaltic lava.
What is CINDER CONE VOLCANO
400
Boundary where one tectonic plate descends into the mantle and partially melts
What is CONVERGENT
400
wave causes particles in the ground to move side to side and up and down at right angles
What is SECONDARY WAVE
400
Molten rock below Earth’s surface
What is MAGMA
400
A measure of damage done by an earthquake
What is MERCALLI SCALE
400
Liquid’s ability to flow
What is VISCOSITY
500
Magma with high silica content
What is ANDESITE
500
H2o
What is WATER
500
A measure of earthquake magnitude
What is RICHTER SCALE
500
Volcano that is not associated with a plate boundary
What is SHIELD VOLCANO
500
A flow of fast-moving cloud of ash, hot gases, and rock that explodes from an erupting volcano
What is PYROCLASTIC FLOW
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