Oh wait... I missed part of that, you're talking about the P and S waves going THROUGH the planet!

they do and can be felt with seismic monitors (which is how we know about rocket launches in other countries for instance without seeing them with satellites). But I doubt the energy transferred through the earth would be very significant on the other side. You wouldn't feel it.

Now if an asteroid hit one side and it's BIG enough, there is some evidence that the mechanical fracture would be transmitted to the far side (exactly opposite of the strike).