Seismic Waves
Earthquake Hazards
Plate Boundary Interactions
Vocabulary
Potpourri
100
This is the point underground where an earthquake actually occurs.
What is Focus
100
This is caused when a slab of the ocean floor is suddenly displaced.
What is a tsunami
100
Plates move apart at this boundary creating lithosphere.
What is Divergent
100
The layer of Earth made up of the crust the upper part of the mantle.
What is Lithosphere
100
This scientist developed the Theory of Continental Drift in 1915.
Who is Alfred Wegener
200
These seismic waves travel the fastest and are picked up first by a seismograph.
What are P-Waves
200
A magnitude 8.0 earthquake has this many more times energy than a magnitude 5.0 earthquake.
What is 1000 times
200
Plates move toward each other destroying lithosphere at this boundary.
What is Convergent
200
This process creates new layers of seafloor at the oceanic ridge. It happens at divergent oceanic boundaries.
What is Seafloor Sreading
200
This is the largest of the tectonic plates on Earth's surface.
What is the Pacific
300
A measure of the amount of energy released at the source of an earthquake.
What is magnitude.
300
These are 2 hazards associated with earthquakes that cause large amounts of soil and water to move rapidly.
What is Mudflow and Landslide
300
Mountains are the feature most likely to be found at this type of convergent boundary.
What is Continental-Continental Convergent
300
This is formed at a convergent boundary when an oceanic plate is forced beneath another plate.
What is Subduction Zone
300
The San Andreas Fault in California is the perfect example for this type of boundary where plates are trying to move past each other.
What is Transform Fault
400
A measure of the amount of earth shaking that occurs at the location of an earthquake.
What is Intensity
400
This is when an earthquake causes once stable soil to turn to liquid causing buildings to collapse and underground tanks to float to the surface.
What is Liquifaction
400
This feature is most likely found at oceanic-oceanic convergent boundaries. An example would be the Aleutian Islands off the coast of Alaska.
What is Volcanic Island Arc
400
This is a deep faulted structure found at divergent boundaries, especially where continents are tearing apart.
What is rift valley
400
This is the theory that explains how Earth's lithospheric plates interact with one another producing a variety of effects.
What is Plate Tectonics
500
These waves are responsible for most of the destruction caused by earthquakes because they are large and move slowly.
What are Surface Waves
500
Tsunami waves out in the open ocean travel at this size and speed.
Short and Fast
500
This feature is most likely found at oceanic-continental convergent boundaries. An example would be the Andes in South America.
What is Continental Volcanic Arc
500
This is a feature created on the seafloor created when one plate descends during subduction.
What is a Trench
500
This theory explains why rocks break and release stored energy causing earthquakes.
What is Elastic Rebound Hypothesis
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