Earth's gravity induces a coupling between flavor oscillations and quarks zitterbewegung oscillations. This coupling is responsible of the observed CP violation in the three types of experiments analyzed here: indirect violation in the mixing, direct violation in the decay to one final state and violation in interference between decays with and without mixing. The observable parameters associated with these experiments are predicted in agreement with the experimental data. The amplitude of the violation is linear with respect to the strength of gravity thus this new mechanism allows to consider matter dominated cosmological evolutions providing the observed baryon asymmetry of the universe.