Aftershock 2025 Lineup Announcement. Sacramento’s aftershock festival has announced the lineup for its 2025 edition, and it’s without a doubt the biggest lineup in the history of the festival. Aftershock announced its 2025 lineup on wednesday (february 28), and as usual it did not disappoint.

See the aftershock festival 2025 lineup on jambase. Organisers of this year’s aftershock festival in california have confirmed this year’s lineup, and it’s enormous.