Board Thread:Theories and Speculation/@comment-5407586-20150624095943/@comment-25549954-20150702112307

Sasuke thought the giant clay didn't explode because it broke, not like it was supposed to go with a bang, he also noticed all the small bombs in the smoke with his Sharingan (because it gives colour), and that panel showing Earth Hand sign was before C4 explosion so it doesn't mean that sign is for explosion Sasuke says it is used in techniques, just by looking at that sign. I think that earth hand sign is used to control the clay containing earth chakra.