Aftershock 2025 Dates Benefits. Aftershock returns to sacramento's discovery park in october 2025 with its biggest lineup yet, featuring iron maiden, slayer, slipknot, mötley crüe and more. (fox40.com) — as the 2023 aftershock festival gets underway, organizers announced the dates on social media for the 2025 event.

Buy passes starting at $10, book hotel packages, and get the latest info on the west coast’s loud and badass party. The lineup for the 2025 aftershock festival has been revealed!