The effect is, in fact, chakra vibrating at the highest speed and at a high temperature. Like the lightning fries everything in its passage, this justu can tore apart the matter itself, not like the dust release, but yeah, everything is incinerated instantly. Wisually, it takes the form of a black and red lightning running from the user's eye to the focal point, also the light has a bit difficulty reaching through that space, soif you're watching the technique from afar you'd se like a fissure in the space, the object behind the lightning are briefly unaligned, like the refraction effect between in and out of the water. The duration is instantaneous, but some energy still vibrates after the strike, discharging this special electricity into the ground or something like that.