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Why do earthquake waves develop shadow zone?

I understand that it is due to reflection and refraction of p waves and inability of s waves to pass through liquid core. But someone please clarify in a very lucid language. Thank you.

Comments

  • QCAQCA
    edited April 2016
    Shadow zones are created due to the nature of the 'S' and the 'P' waves..P wave can pass through all medium . However, S wave can not pass through liquid outer core medium ..there is a shadow zone between the [103 degree and 143 degree] from the epicenter because S wave can't pass through the outer liquid core ..P wave is also not present in this zone because of multiple reflection due to the change in density of the medium from mental to outer core and from outer core to inner core .
  • Thannk you. That sums up.
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