Observed displacements of the significant structural patterns detected in the jet of M 87. Three main regions can be identified in the jet, as revealed by consistency between the individual displacements in the southern (blue) and northern (green) limbs and in the central “stream” (red) of the flow. The components found in the inner part of the counter-jet (orange), may reflect motions in a slow, weakly deboosted wind on the counter-jet side. In the outer part of the counter-jet (gray), a slower transversal motion is evident, with a tendency toward the northward direction. The displacements are overplotted on a stacked-image of the jet clipped at a 5σ noise rms level (0.5 mJy/beam).