Earthquakes
Gases & Extas
Magma
Volcanoes
Terms
100
Two types of Surface waves
What are Love and Rayleigh Waves?
100
Dissolved amounts of viscosity that determines the explosiveness of magma.
What is Gases
100
Molten rock that erupts onto Earth’s surface.
What is Lava
100
Vent in the Earth’s crust through which molten rock flows.
What is Volcanoes
100
P-wave fastest-moving type of seismic wave-cases push-pull motion.
What is Primary Wave
200
A measure of earthquake magnitude.
What is Richter Scale
200
Is a depression formed when a volcano’s summit collapse or is blown away by an explosive eruption.
What is Caldera
200
Magma with high silica content.
What is Andesite
200
Tiny particles of pulverized volcanic rock and glass.
What is Volcanic Ash
200
h2o
What is Water
300
Three Seismic measurements
What is minimum number of stations needed to determine exact location of a focus
300
To cause to disperse or disappear.
What is Dissolved
300
The main chemical in magma.
What is Silica
300
Large volcano with gentle slope of basaltic lava.
What is Shield Volcano
300
Liquid’s ability to flow.
What is Viscosity
400
The point where an earthquake begins.
What is Focus
400
Volcano that is not associated with a plate boundary.
What is Hot Spot
400
What happens at a ridge zone in the ocean.
What is sea floor spreading?
400
Small,steep-sided volcano that erupts gas-rich, basaltic lava.
What is Cinder Cone Volcano
400
S-wave causes particles in the ground to move side to side and up and down at right angles.
What is Secondary Wave
500
Another name for the focus
What is hypocenter
500
A flow of fast-moving cloud of ash, hot gases, and rock that explodes from an erupting volcano.
What is Pyroclastic Flow
500
Magma that is rich in silica forms when the mantle mixes.
What is Continental Crust
500
Large,steep sided volcano that results from explosive eruptions of andesite and rhyolitic s lavas.
What is Composite Volcano
500
The area of earthquake and volcano activity around the Ring of Fire.
What is Pacific
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