Rest of the trees can hear it and thus the energy released gets absorbed in the soil and the trees for seen around it
Researches have shown that after every tree fall, a crack or scratch in the wood of the trees occur by which geologists can measure the tree fall and damage caused in the wood structures....
This thread is so beautiful ... philosphy made a claim and diwana made a counter ... two cone heads of philosophy ... LOL ... I always try to come back to definition.
We need to speak about the same thing. The meaning person A holds for the term "sound" may be "that what is perceived by the ear-mind complex when physical movement occurs that reciprocates through media reaching that complex" and person B may say "sound" is defined by the "physical movement of the type that can create a perceived 'sense' in the ear-mind complex"
These two are inverse or even self-fulfilling definitions. The result of how we hold the definition will determine how we answer the main question. Hence: I will answer with the third variety.
I don't think it makes a sound. Assuming no living thing is around to hear it. Sound is just vibrations in the air until it enters an 'ear' and gets converted into signals which are then interpreted by the brain.