AFTERSHOCK is the name of our High School Youth Ministry program. High School students from any school or parish are invited to come together as a Christian Community where our teens are invited to be themselves, meet Christ in a new way, and support one another as brothers and sisters in Christ

Summer Schedule: June–August on Wednesdays at 6 pm

Outside unless weather is bad (then in Good Samaritan Hall)

School Year Schedule begins Sunday, September 11

Follow @aftershock_ym_straph on Instagram for updates or contact with questions.

Scroll down for news about the group and events. For more information, fill out the Aftershock Form.

News & Events

  • Aftershock returns Sunday, September 11 with our Fall Kickoff night! Join us every Sunday starting at 5 pm for Mass, followed by dinner, games, and a chance to grow in faith and friendship. All high school students are invited: Come as you are!
  • Follow us on Instagram @aftershock_ym_straph or on Facebook @aftershockoshkosh to stay up to date on upcoming events.

Events 2022-23:

  • Oct 28–30: TEC Retreat. Join us and other youth from the Diocese as we go on this awesome retreat that uses witness, small groups, food and prayer to help us grow in our faith.
  • Sat, Nov 12: GBYC Conference. Come to this day-long Conference in Green Bay featuring Jonathan "Bearded" Blevins for a day full of impact and encounter. Fill out this form and return to Michael to reserve your spot by October 19th.
  • Retreat with Catholic Youth Expeditions (CYE) in Door County: Come experience God through the beautiful nature of Door County. “Come and See.”
  • Sat, Mar 18: Wisconsin Catholic Youth Rally. Arise Milwaukee is back!


Green Bay Youth Conference (GBYC)

Saturday, November 12

Our parish youth ministry program will join the Diocese on Saturday, November 12, to bring back GBYC (Green Bay Youth Conference). Registration details to follow in the fall.

Beyond: A Retreat on Peace

2022-23 Dates TBD

We will be holding this retreat again. Check back for updates later.