2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/205208A Vaidya-based model of a radiating black-hole is studied in a 5-dimensional Einstein gravity with Gauss-Bonnet contribution of quadratic curvature terms. The structure and locations of the apparent and event horizons of the radiating black hole are determined.4 pages, RevTeX, Accepted in Physical Review DGeneral Relativity and Quantum Cosmologytext