Accelerator ignored Kakine’s words and stomped on the gravel road, and then kicked the rocks that were sent flying up using a karate kick.
Boom! A loud explosion rang out.
The vectors of the pebbles were changed and fired off faster than a Railgun, but vanished after a few millimeters. However, the pressure waves did not vanish, and the attack felt as if it would tear the very air apart. But, Kakine also put strength into his wings and scattered the attack. The waves of attacks between the two clashes against one another, sent a ‘tsunami’ of air throughout their surroundings and blew streetlights and advertisement signs into the air.

Toaru Majutsu no Index vol.15 ch.5 pt.3