Aftershock Festival 2026 Merch in Sacramento, CA Aftershock Festival 2026 returns to Sacramento, California, from October 1–4, 2026, bringing four days of rock, punk, metal, alternative, and related music to Discovery Park. The 2026 edition is the festival’s 14th year and features 140+ artists across five stages, making it the largest Aftershock lineup to date. […]