The survival probability for photodissociation of ozone in the Hartley band is computed using classical trajectory techniques with Wigner sampling of the initial conditions. In the general C-s symmetry, the survival probability exhibits notable recurrences, in qualitative agreement with quantum dynamics results. The present work confirms the analysis by Johnson and Kinsey [J. Chem. Phys. 91, 7638 (1989)], who postulated the role of unstable quasiperiodic orbits in the experimental autocorrelation function. (C) 2000 American Institute of Physics. [S0021-9606(00)01116-8].