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.
S waves and P waves are the two types of seismic waves produced by all earthquakes. P waves are primary waves because they arrive at seismic reporting stations first. These shear waves are secondary waves because they travel at slightly slower speeds and are the second set of seismic waves recorded on seismographs. Scientists use the difference in time to determine the earthquake focus and epicenter.