What is shadow zone?

1.	What is shadow zone?
Answer» \tThe shadow zone is the zone of the earth from angular distances of 104 to 140 degrees from a given earthquake that does not receive any direct P waves.\tThe shadow zone results from P waves being refracted by the liquid core and S waves being stopped completely by the liquid core.\tA zone between 105° and 145° from the\xa0epicenter was recognized as the shadow zone for both the wave types.\tThe entire zone beyond 105° does not receive S-waves.\tThe shadow zone of S-wave is larger than that of the P-waves.\tThe shadow zone of P-waves appears as a band around the earth between 105° and 145° away from the epicenter.

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