Overview Aftershock is a four-day rock and metal festival on the tree-lined American River in Sacramento's Discovery Park, and its bills have carried Metallica, System of a Down, Blink-182 and Deftones. It started in 2012, went to three days in 2019 and four in 2021, and the 2026 edition was its 14th. In 2026 the five stages took their names from the quake: Aftershock, Shockwave, Faultline and Epicenter, plus The Point. Danny Wimmer Presents produces it, along with Welcome to Rockville at Daytona International Speedway, Sonic Temple in Columbus, Inkcarceration inside the Ohio State Reformatory and Louder Than Life in Louisville. On site In 2026 gates opened at 11 a.m. and the stages ran from late morning until after 9 at night. In 2025 Tremor's Dive Bar ran DJ sets and local takeovers, My Darkest Days played a surprise set there, and the Capital Club was the all-inclusive premium area. For 2026 the festival added car, tent and RV camping at nearby Cal Expo for the first time, along with an open-air cantina and a sports bar by the fifth stage. Audience The 2025 crowd came from all 50 states and more than 30 countries. Deftones' set that year was a hometown show. Talent and Influencers The 2026 lineup, released in March, put My Chemical Romance at the top of Thursday, Limp Bizkit on Friday, Pierce The Veil on Saturday and Tool on Sunday, with The Offspring, $UICIDEBOY$, A Day To Remember and Queens of the Stone Age below them and Wu-Tang Clan, Public Enemy, Cypress Hill, Sublime and Danny Elfman on the same bill, more than 140 acts in all. In 2025 Deftones marked 30 years of Adrenaline, Korn headlined Saturday with a tribute to Ozzy Osbourne, The Dillinger Escape Plan played a West Coast reunion show, Trivium played Ascendancy in full and Bring Me The Horizon closed the weekend. Track record The 2025 edition was the biggest the festival had drawn: more than 164,000 fans over four days and 115 bands, with an estimated $35 million in local economic impact. That year Sacramento Mayor Kevin McCarty, State Senator Angelique Ashby and Assemblymember Maggy Krell honored Danny Wimmer Presents for its economic and cultural contribution to the city. Brand presence Brands put their names on the stages; in 2026 The Point was presented by Coors Light. An official partner gets a 10-by-10 activation space with an agreed sampling window, a :15 spot on the sponsor reel that plays on the main stage between sets, integration in the festival app and the right to use Aftershock's marks in its own marketing. Tent, signage, wi-fi and power are arranged through the DWP account team, and a ticket bank worth 10% of the fee comes with the deal.