Clash Of The Roars.

Jarkon didn't get to figure out why there is another roar because of the explosion that occurred between him and Soverick. He was thrown by the force of the explosion and the crater was expanded. Soverick was also thrown back by the explosion. He landed gracefully unlike Jarkon who was thrown about like a rag doll. He expected the explosion so he wasn't caught off guard by it.

"Not bad for an amateur." He said as he roused himself from the pain he felt.

He caused the explosion. It wasn't the explosion that hurt him. He had to sacrifice some of his divine sense to replicate Jarkon's divine ability and it hurt him a lot. The explosion is what occurs when two energy-carrying waves of vibration with the same frequency, amplitude, and wavelength but in opposite directions meet. The energy they are carrying gets released haphazardly into the environment.