  Low-temperature dissipation due to vortex motion in strongly anisotropic
type-II superconductors with a moderate disorder ($\Delta^2/E_F \ll \hbar/\tau
\ll \Delta$) is shown to be determined by the Zener-type transitions between
the localized electronic states in the vortex core. Statistics of these levels
is described by the random matrix ensemble of the class C defined recently by
Atland and Zirnbauer [cond-mat/9602137], so the vortex motion leads naturally
to the new example of a parametric statistics of energy levels. The flux-flow
conductivity $\sigma_{xx}$ is a bit lower than the quasiclassical one and {\it
grows} slowly with the increase of the electric field.
