Lecture 6 - Earthquake scales

Lecture 6 - Earthquake scales - Seismic Waves: Body Waves...

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Seismic Waves: Body Waves Seismic Waves: Body Waves Animation: Body Waves emanating from an Earthquake
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Seismic Waves: Body Waves Seismic Waves: Body Waves Animation: P wave vs. S wave
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Seismic Waves: Surface Waves Seismic Waves: Surface Waves Animation: Surface Waves in Earthquakes
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S waves (shear waves) can’t go through liquid Waves on ray paths that go through outer core (liquid) have no S waves when they get to other side Earth Earth Structure and Structure and Seismic Waves Seismic Waves
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Seismoscope: earliest instrument invented by Zhang Heng in China (132 C.E.) Detecting and Measuring Ground Motion Detecting and Measuring Ground Motion
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Seismometer – device that measures ground motion Seismograph – device that records ground motion Seismogram – paper or digital record of ground motion Analog vs. digital 3 components – north- south, east-west and up-down Detecting and Detecting and Measuring Ground Measuring Ground Motion Motion
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Seismogram drums
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This note was uploaded on 05/17/2008 for the course GEO 107 taught by Professor Stidham during the Spring '08 term at SUNY Stony Brook.

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Lecture 6 - Earthquake scales - Seismic Waves: Body Waves...

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