Volcanoes
Vocabulary
Earthquakes/Tsunamis
Earth Quakes/Waves
100
Hot melted rock that reaches earth's surface.
What is lava.
100
A formation of islands aligned above a volcanic hot spot.
What is Island Chain.
100
A sudden shaking of earth's crust.
What is Earth Quake.
100
When layers of rock suddenly slip.
What is Earth Quake.
200
An opening in earth's crust that lava may flow.
What is Volcano.
200
A stationary location in earth's mantle where magma melts through a tectonic plate.
What is Hot Spot.
200
The point were an earth quake starts.
What is Focus.
200
An instrument that detects and measures waves by a an earth quake.
What is Seismometer.
300
A wide, gently sloped cone that forms from flowing lava.
What is Shield Volcano.
300
A string of volcanic islands made from melted rock rising up from under the sea floor.
What is Island Arc.
300
The point on earth's surface directly above the focus of an earth quake.
What is Epicenter.
300
Moves the fastest of the waves.
What is Primary Wave.
400
A steep sided mountain that forms from explosive eruptions of thick lava.
What is Cinder-Cone Volcano.
400
Some thought the continents didn't move.
What is Geologist.
400
The amount of energy released from an earth quake.
What is Magnitude.
400
Moves only through earth's crust.
What is Secondary Wave.
500
A mountain that formed of alternative eruptions of lava and ash.
What is Composite Volcano.
500
Causes deep cracks in earth's crust called faults.
What is Shear.
500
A huge wave caused by an earth quake under the ocean.
What is Tsunami.
500
Moves the slowest oft he waves but does the most damage.
What is Surface Wave.
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