Do not rush to change the clutch check the level of the clutch fluid and if needed top it up first it could also be your master or slave cylinder which is at fault go to a clutch centre and have it checked which normally this service is free.bty82892 Â· 7 years ago.eport Abuse. Do not rush to change the clutch check the level of the clutch fluid and if needed top it up first it could also be your master or slave cylinder which is at fault go to a clutch centre and have it checked which normally this service is free. bty82892 Â· 7 years ago. Thumbs up.
Earthquakes generate three types of seismic waves: P (primary) waves, S (secondary) waves and surface waves, which arrive at seismic recording stations one after another. Both P and S waves penetrate the interior of the Earth while surface waves do not. Due to this, P and S waves are known as body waves.
P waves shake the ground in the direction they are propagating, while S waves shake perpendicularly or transverse to the direction of propagation. Although wave speeds vary by a factor of ten or more in the Earth, the ratio between the average speeds of a P wave and of its following S wave is quite constant.