GEOLOGY

Detailed explanation-1: -Surface waves travel more slowly through Earth material at the planet’s surface and are predominantly lower frequency than body waves. They are easily distinguished on a seismogram. Shallow earthquakes produce stronger surface waves; the strength of the surface waves are reduced in deeper earthquakes.

Detailed explanation-2: -The speed at which a dispersive wave travels depends on the wave’s period. In general, earthquakes generate Love waves over a range of periods from 1000 to a fraction of a second, and each period travels at a different velocity but the typical range of velocities is between 2 and 6 km/second.

Detailed explanation-3: -L g waves have a typical group velocity of about 3.5 km/s and can be large-amplitude arrivals on all three components of motion (vertical, radial, and transverse) out to 1000 km. L g phases are the main high-frequency arrival at regional distances in regions of thick continental crust. Fig.

Detailed explanation-4: -They move the ground from side to side in a horizontal plane but at right angles to the direction of propagation. Love waves are particularly damaging to the foundations of structures because of the horizontal ground motion they generate. Love waves can also cause horizontal shearing of the ground.