Anatomy of an Earth Quake
The Aftermath
Causes
Surfs Up
Shake and Bake
100
What do earthquakes result from? (where is the stress released from?)
What is release of stress from fault line
100
Results from sea floor displacement
What is a Tsunami
100
This cause results from an unbalanced spin
What is Earths Wobble.
100
1st wave to arrive, and its direction of force
P wave, Compression / Dilation
100
Total amount of energy released
What is Magnitude
200
These occur along deep oceanic trenches…6-7 in magnitude
What are Deep Focus E.Q's
200
Displacement of the crust…..as much as 215m
What are Vertical and Lateral Displacement
200
Nuclear Tests and High pressure water injection
Man Made Causes
200
Only moves through Rock
What are "S" waves
200
Used to record wave amplitude and frequency
What is a Siesmograph
300
The spot directly above where the E.Q occurs
What is the Epicenter
300
The effects of waves traveling through coastline / sandy sediment
What is liquefaction
300
Drive plate movement
What are Convection Currents
300
Why is the time difference between P and S waves important
Can tell us location / distance of EQ.
300
Increases by a factor of 10
What is Richter Scale
400
Causes greatest destruction because source is very close to earths surface
What are Shallow Focus E.Q
400
List 3 destructive effects of E.Q's
-landslides / mass movements -fires -building collapse -infrastructure destroyed -Tsunami
400
Process of mountain growth and decay
What is Orogenesis
400
Travels more slowly then P and S waves
What are surface waves
400
Deformed rocks go back to original shape
What is elastic rebound
500
Also known as the Hypocenter
What is FOCUS!!!
500
The movement of continents and oceanic floor exerts pressure @ this location
What are trenches
500
Are refracted through liquid
What are P waves
500
Plastic deformation doesn't cause EQ's….unlike this other form of deformation….
What is Elastic Deformation
M
e
n
u