File:Earthquake wave paths.svg

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Summary

Cross section of the whole <a href="https://en.wikipedia.org/wiki/Earth" class="extiw" title="wikipedia:Earth">Earth</a>, showing the complexity of paths of <a href="https://en.wikipedia.org/wiki/earthquake" class="extiw" title="wikipedia:earthquake">earthquake</a> waves. The paths curve because the different rock types found at different depths change the speed at which the waves travel. Solid lines marked P are compressional waves; dashed lines marked S are shear waves. S waves do not travel through the core but may be converted to compressional waves (marked K) on entering the core (PKP, SKS). Waves may be reflected at the surface (PP, PPP, SS).

<a href="https://en.wikipedia.org/wiki/Seismograph" class="extiw" title="wikipedia:Seismograph">Seismographs</a> detect the various types of waves. Analysis of such records reveals structures within the Earth.

Licensing

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File history

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Date/TimeThumbnailDimensionsUserComment
current21:51, 3 January 2017Thumbnail for version as of 21:51, 3 January 2017300 × 250 (24 KB)127.0.0.1 (talk)<p>Cross section of the whole <a href="https://en.wikipedia.org/wiki/Earth" class="extiw" title="wikipedia:Earth">Earth</a>, showing the complexity of paths of <a href="https://en.wikipedia.org/wiki/earthquake" class="extiw" title="wikipedia:earthquake">earthquake</a> waves. The paths curve because the different rock types found at different depths change the speed at which the waves travel. Solid lines marked P are compressional waves; dashed lines marked S are shear waves. S waves do not travel through the core but may be converted to compressional waves (marked K) on entering the core (PKP, SKS). Waves may be reflected at the surface (PP, PPP, SS). </p> <p><a href="https://en.wikipedia.org/wiki/Seismograph" class="extiw" title="wikipedia:Seismograph">Seismographs</a> detect the various types of waves. Analysis of such records reveals structures within the Earth. </p>
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