With this much mass and velocity - it would smash the planet, rupturing the entire crust at the very least. No matter how infinitesimally small the probability

With this much mass and velocity - it would smash the planet, rupturing the entire crust at the very least. No matter how infinitesimally small the probability - the universe is infinite, and so it probably will happen. i3 is much bigger than the Chicxulub asteroid that ended the Cretaceous period (and extinct all non-avian dinosaurs).