Aftershock 2024 Discovery Park 10 Octave. 10 and 13 and will feature over 130 bands including slayer, slipknot, insane clown posse and. Get ready to rock because the west coast's biggest rock festival, aftershock, is right around the corner, bringing artists like mötley crüe, iron maiden,.

10 and 13 and will feature over 130 bands including slayer, slipknot, insane clown posse and. All pass sales are final, no refunds or exchanges.