You might find it useful to know that heat does not travel in waves. Heat propagation obeys a diffusion equation, different than vibrations, which obey the elastic wave equation.

So your remarks about sensors deep in the ground that can see the waves, and the speed at which heat waves travel make little sense.

I'm a little surprised at your newfound respect for degrees, the ability to compile references, and agreement within a crowd, which could also be construed to give mainstream ideas some credence.