Rayleigh Waves travel through our Earth's crust anywhere from 2.9 to 14.9 times the speed of sound. Rayleigh waves from impacts such as the K/pG Impact Event are known to be at least 1 meter tall for thousands of miles.Waves of rock and ground that poke-up above our crust at heights of 1+ meters at super-sonic speeds would have built up a high pressure (and heat) atmospheric shock-wave in front of the wave(s) as all solid objects (the sheer face of the wave(s),in this case, suffices as a solid object) that travel at super-sonic speeds through our atmosphere.
If anyone can explain how this shock-wave did not exist, I am very eager to hear about it.
Working Paper Atmospheric Coupling Effects Of Large Scale Rayleigh Waves
I believe the key to understanding this is differentiating between wave-front velocities and particle velocities. Those surface-waves have very long wave-lengths and thus the particle velocities are much less than the wave-front velocities.