As the dragon charged at them with tremendous speed, it showed no concern about striking the ground. It flapped its wings to pick up more speed as if it was fine with creating a giant crater in the ground and causing that coastal area to crumble and allow seawater in.

[…]

“I thought you defeated that thing!”
“I did!! This one is a lot bigger. It looks easily over 100 meters long! If a mass that large slams into the ground with the speed needed to catch up to a supersonic passenger plane…!”

[…]

Níðhöggr continued charging toward the ground at full speed.
(It didn’t work!!)
Kamijou began to squeeze his eyes shut.
But then he saw something else.
He saw a man’s silhouette.
The man grabbed a crane’s wire and flew through the air like a pendulum. He appeared in the space between the dragon and the ground. Níðhöggr did not hesitate to tear this intrusion to pieces with its giant maw. The man made no attempt to dodge. His body was taken between the dragon’s teeth and the destruction began.

Toaru Majutsu no Index New Testament vol.8 ch.4 pt.16