At first, he didn't feel anything. Then came a pressure that little by little became a bit too strong. He felt like his surroundings were being squeezed then displaced, leaving him dizzy for a moment, and
*BOOM*
The explosion freed him from the pressure, leaving him untouched, kind of like experiencing a storm while being in the middle of it.
The fierce light the explosion must have caused went away before he could recover and see.
What entered his eyes was hundreds of meters of destruction that slowed to a stop only because the place he arrived at was indoor, with the material used for the building solid enough.
Beneath his feet was a platform that would have made him think he had not left Earth if not for the differences between this place and the base back home.
Still not recovered from the disorientation, he took a step, bigger than the one man took on the moon, and fell down.