We apply a two-step seismic imaging flow by combined first-arrival traveltime and<br>frequency-domain waveform tomographies to dense wide aperture data collected in the Val<br>d’Agri basin (southern Italy). A large wavelength Vp model determined by first-arrival<br>traveltime tomography is used as a starting model for waveform tomography. The multiscale<br>waveform tomography consisting of successive inversion of increasing frequencies allows to<br>progressively reconstruct the short wavelengths of the velocity model, providing valuable<br>information on the Quaternary basin and on range-bounding normal-faulting systems.