| Why Earthquakes Happen | Faults At Tectonic Plate Boundaries | Where Earthquakes Happen | Tsunmis |
|---|---|---|---|
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This makes tectonic plates move.
Wha t are earthquakes?
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Where do earthquakes happen?
near the boundaries of tectonic plates.
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What are tsunamis?
An extremely long wave that can travel across the ocean at speeds of up to 800 km/h.
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What is a seismic wave?
A moving of energy that travels through the Earth and away from an earthquake in all directions.
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What is a fault?
A break in a body of rock along which one block slides relative to another.
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What are they monitored by?
By the P.T.W.C.
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What is elastic rebound?
The sudden return of deformed rock to its undeformed shape.
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Where do tectonic plates move?
In different direction and at different speeds.
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Where do earthquakes cause tsunamis?
On the ocean floor.
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What is plastic deformation?
This type of deformation is irreversible. However, an object in this deformation range will first have undergone another kind of deformation, which is reversible, so the object will return part way to its original shape.
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Where do large earthquakes occur?
In the interior of the North American Plate.
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What kind of damage can tsunamis cause?
Loss of life by smashing and washing anything in their paths.
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What is elastic deformation?
A temporary shape change that is self-reversing after the force is removed, so that the object returns to its original shape. This change is a change in shape of a material at low stress that is recoverable after the stress is removed.
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What is a normal fault?
The hanging wall moves down relative to the footwall in this.
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How do tsunamis form?
As tsunami waves enter
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