Data corresponding to tsunami sources of potential La Palma collapse scenario for slide volumes of 20, 40, 80, and 450 km³.  The initiation of the slide is modeled using THETIS, a 3D Navier-Stokes model.  The slide is considered as a Newtonian fluid whose viscosity is adjusted to approximate a granular behavior.  After 5 minutes of propagation with THETIS, the generated water wave is transferred into FUNWAVE-TVD for 15 minutes fo Boussinesq model simulation.  Wave elevation and water velocity at this point in time, 20 minutes after the start of the flank collapse, are provided.