Sound quality ain't the best, but i think, there's no soundwave for 10 secs. Thus the distance ~5 km. Explosion radius ~300 m at least then.
Dude, it wasn't a nuke. If you saw this at night, it would look exactly like the following, which was fertilizer.
It wasn't a "mini nuke" either. It wasn't a nuke, period. What, Ukraine doesn't store Amfo in a warehouse somewhere?