The seismic shadow zone is the rea of the Earth's surface where seismographs cannot detect an earthquake after the waves have passed through the earth;
S wave shadow zone definition- Swaves do not travel through liquids — they are stopped at the CMB — and there is an Swave shadow on the side of Earth opposite a seismic source The angular distance from the seismic source to the shadow zone is 103° on either side, so the total angular distance of the shadow zone is 154° We can use this information to infer the depth to the CMB Pwaves doP waves are refracted by the liquid outer core and are not detected between 104° and 140° S waves cannot pass through the liquid outer core and are not detected beyond 104° This information led scientists in the early 1900s to
S wave shadow zone definitionのギャラリー
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