Question

what is seismic wave ? what is primary wave ? what is surface wave ? ( please write in short )​

Answer 1

(ii) Secondary Waves - S (secondary or shear) waves are recorded on a seismogram after the P waves. They are distortional waves in which the particles vibrate at right angles to the direction of movement of the wave. S-waves travel through the earth's interior but cannot be transmitted by liquids.

(iii) Surface Waves - L (surface or long) waves travel along the was surface of the earth and are recorded after the P and S waves.

(iv) Seismic Waves - The point of origin of the P-waves, the S-waves and the L-waves is known as seismic waves.