100 DAYS UNTIL AFTERSHOCK RETURNS 🚨

Everything between now and October is just the countdown.

In just 100 days, Discovery Park becomes home again.
Four days of legendary sets, unforgettable moments, and stories you'll be telling for years.

Aftershock returns October 1-4, 2026.

And it's closer than you think.

Select your pass type and quantity, then select

"View Layaway."

2-Day GA Passes are officially on sale, giving you even more time to experience the West Coast's largest rock, punk, and metal festival at Discovery Park this October.

NEW FOR 2026! We’re rolling out official festival camping at Cal Expo.

Car + Tent and RV options available now with festival re-entry and Camping Pre-Party access included.