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4.8: Seismic Waves

Difficulty Level: At Grade Created by: CK-12
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Vocabulary

amplitude

The height of a wave from the center to the top of the crest (or the bottom of the trough).

body wave

Seismic waves that travel through the body of a planet; e.g. primary or secondary waves.

crest

The highest point of a wave.

P-waves

Primary waves; arrive first at a seismograph.

S-waves

Secondary waves; arrive second at a seismograph.

seismology

The study of seismic waves including earthquakes and the Earth's interior.

surface wave

Seismic waves that travel along the ground surface; they do the most damage.

trough

The lowest point of a wave.

wavelength

Horizontal distance from wave crest to wave crest, or wave trough to wave trough.

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Difficulty Level:
At Grade
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Date Created:
Feb 24, 2012
Last Modified:
Aug 12, 2016
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