What happens when two shock waves collide? What happens specifically to the gas that is in between both shocks both initially and after? Solution The separate shock waves would mostly pass through each other unaffected this is a common property of wave is called superposition. For example two bombs are placed on earth each side of the earth were to be detonated at the same time .creating extremely powerful shock waves hit each other would they just keep on going. Would they collided creating third shock wave. Instead of two bombs on each side of earth there is only one.and is buried about a mile deep.it denotes making a shock wave through the crust.much like an earthquake and mdash strong enough to make it all the way to the other side of the earth..