It is likely that the impact with the kerb has caused some damage resulting in the vibration. The issue could be with the wheel itself, which may be out of shape or unbalanced. We would suggest removing the wheel and inspecting it for cracks or chips, and if there is no obvious physical damage we would suggest having it balanced. It is also possible that the wheel alignment has been altered, so having the front wheels aligned at the same time would be a sensible approach. If this does not cure the vibration then it is possible the suspension has been damaged, in which case we would suggest having it inspected by an independent garage.