The huge crack in the air had Iruka jerking upright, battle-alert and tense, and then the earthshaking... well, shake nearly made him pitch over.
"Fuck," Iruka said eloquently, "What was that? an earthquake?"
That didn't feel quite like one - more like one of the crazy iwa-jutsu or lightning-jutsu, only missing the lightning and three times the impact. "Raidou, did you hear?"