OK, that tops what one of my players could do with his Ninjas & Superspies/Heroes Unlimited character. His 'open hand push' at first level did a one mile[1] knockback, but no damage.


[1] It was 1' per point of Chi, which would typically mean something on the order of 30-50'. He was a pre-revision Ancient Master who had focused on martial arts that maxed out Chi multipliers.