Topic—Interior of earth<\/strong><\/p>\n\n\n\n \u2713 They are recorded second on the seismograph or S-waves are also called as transverse waves or shear waves or distortional waves.<\/p>\n\n\n\n \u2713They are analogous to water ripples or light waves.<\/p>\n\n\n\n \u2713 Transverse waves or shear waves mean that the direction of vibrations of the particles in the medium is perpendicular to the direction of propagation of the wave. Hence, they create troughs and crests in the material through which they pass (they distort the medium).<\/p>\n\n\n\n \u2713 S-waves arrive at the surface after the P-waves.<\/p>\n\n\n\n \u2713 These waves are of high frequency and possess slightly higher destructive power compared to P-waves.<\/p>\n\n\n\n \u2713 The trembling on the earth\u2019s surface caused due to these waves is from side to side (horizontal).<\/p>\n\n\n\n \u2713 S-waves cannot pass through fluids (liquids and gases) as fluids do not support shear stresses.<\/p>\n\n\n\n \u2713 They travel at varying velocities (proportional to shear strength) through the solid part of the Earth.<\/p>\n","protected":false},"excerpt":{"rendered":" SECONDARY WAVES (S-WAVES) Topic—Interior of earth \u2713 They are recorded second on the seismograph or S-waves are also called as transverse waves or shear waves or distortional waves. \u2713They are analogous to water ripples or light waves. \u2713 Transverse waves or shear waves mean that the direction of vibrations of the particles in the medium 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