As a seismologist with extensive experience in the study of seismic waves, I can provide you with detailed information on the speed of S-waves. S-waves, also known as shear or secondary waves, are slower than P-waves but still travel at significant speeds. The speed at which S-waves propagate can vary greatly depending on the medium through which they are moving. In general, S-waves have a range of speeds from 1 to 8 km/sec. The slower end of this range is associated with the speed of S-waves in loose, unconsolidated sediments, while the faster end is observed near the base of the Earth's mantle. It's important to note that the speed of S-waves can be affected by factors such as the density and composition of the rock or sediment, as well as the temperature and pressure conditions at the location of the wave propagation. S-waves are also unable to travel through liquids, which is why they do not pass through the liquid outer core of the Earth. read more >>

Even though they are slower than P-waves, the S-waves move quickly. Typical S-wave propagation speeds are on the order of 1 to 8 km/sec. The lower value corresponds to the wave speed in loose, unconsolidated sediment, the higher value is near the base of Earth's mantle.read more >>