Stress And Energy Waves

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Information about Stress And Energy Waves
Education

Published on September 24, 2008

Author: sacklax40

Source: slideshare.net

Stress and Energy Waves Movement during an Earthquake

October 17, 1989 at 5:04 p.m

Stress Stress: Energy stored in the Earth’s crust Stress can build up at plate boundaries. Potential Energy

Stress: Energy stored in the Earth’s crust

Stress can build up at plate boundaries.

Potential Energy

Folding Too much stress can cause the rocks to bend or Fold . This can form Mountains . The Appalachian mountains are folded mountains.

Too much stress can cause the rocks to bend or Fold .

This can form Mountains .

The Appalachian mountains are folded mountains.

The Appalachian Mountains (Tennessee)

Faulting When there is too much stress , the rocks in the crust may break . This can cause earthquakes .

When there is too much stress , the rocks in the crust may break .

This can cause earthquakes .

Fault Lines

Seismic Waves Waves of energy that move through the Earth during an Earthquake. There are three types: Primary waves Secondary waves Love-Rayleigh waves

Waves of energy that move through the Earth during an Earthquake.

There are three types:

Primary waves

Secondary waves

Love-Rayleigh waves

Primary (P) waves Body waves move through the interior of the Earth. They are the fastest seismic wave, therefore will always arrive first . Move through solid, liquid and gas. They are compression waves, they move particles forward and backward .

Body waves move through the interior of the Earth.

They are the fastest seismic wave, therefore will always arrive first .

Move through solid, liquid and gas.

They are compression waves, they move particles forward and backward .

S waves Also body waves. Travel more slowly and arrive second . Can only move through solids . Also called shear waves, because they move particles side to side . AKA transverse waves.

Also body waves.

Travel more slowly and arrive second .

Can only move through solids .

Also called shear waves, because they move particles side to side .

AKA transverse waves.

Love-Rayleigh Waves Surface waves. Solid rock only. Move in a rolling motion. Cause ripples on the surface.

Surface waves.

Solid rock only.

Move in a rolling motion.

Cause ripples on the surface.

Seismology and Seismic Waves

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