  Sudden destabilisations of the magnetic field, such as those caused by
spontaneous reconnection, will produce waves and/or flows. Here, we investigate
the nature of the plasma motions resulting from spontaneous reconnection at a
3D separator. In order to clearly see these perturbations, we start from a
magnetohydrostatic equilibrium containing two oppositely-signed null points
joined by a generic separator along which lies a twisted current layer. The
nature of the magnetic reconnection initiated in this equilibrium as a result
of an anomalous diffusivity is discussed in detail in \cite{Stevenson15_jgra}.
The resulting sudden loss of force balance inevitably generates waves that
propagate away from the diffusion region carrying the dissipated current. In
their wake a twisting stagnation-flow, in planes perpendicular to the
separator, feeds flux back into the original diffusion site (the separator) in
order to try to regain equilibrium. This flow drives a phase of slow weak
impulsive-bursty reconnection that follows on after the initial
fast-reconnection phase.
