several dozen meters away

The Level 0 charged in to where his fist could reach his opponent.
Accelerator raised one of his black wings.
The two attacks flew past each other, and the Level 0’s attack hit only an instant earlier.
Accelerator lost his balance from the impact. The black wing’s path got diverted slightly,
and missed the Level 0 by millimeters.
A shockwave erupted.
With the raging wind, not just the Level 0, even Accelerator got blown several dozens of
meters away. Both of them got up from the snow-covered ground, clenched their fists,
and charged right at each other.

- Toaru Majutsu no Index Volume 20, Chapter 4 Part 5