GEOLOGY

Detailed explanation-1: -One kind of surface wave is called a Love wave, named after British mathematician A. E. H. Love, who worked out the mathematical model for this wave type in 1911. Love waves produce entirely horizontal motion. The amplitude is largest at the surface and diminishes with greater depth.

Detailed explanation-2: -The primary, or P, waves travel most quickly and are the first to be registered by the seismograph. Secondary, or S, waves travel more slowly. As S waves have a greater amplitude than P waves the two groups are easily distinguishable on the seismogram.

Detailed explanation-3: -Love waves They usually travel slightly faster than Rayleigh waves, about 90% of the S wave velocity, and have the largest amplitude.

Detailed explanation-4: -Amplitude-the maximum disturbance or distance from the constant point. On a seismogram the horizontal time line is flat until there is a ground disturbance which is recorded as wave, or seismogram. The amplitude of a seismic wave is the amount the ground moves up or down.

Detailed explanation-5: -On a seismogram from an earthquake, the P-wave is the first signal to arrive, followed by the slower S-wave, then the surface waves. The arrival times of the P-and S-waves at different seismographs are used to determine the location of the earthquake.