Contrary to most clubs, who actively advertise to the Diamond Bar High School community to gain more popularity, Aftershock thrives with its inclusiveness and aims to instill strength amongst its members through faith.

On school campus, clubs such as Muslim Student Association spread awareness of their religious persecution around the world and bring information to the students during their regular meetings. Aftershock, one of DBHS’ two religious clubs, the other being Joy Club, operates more like an actual church service.

Aftershock has no leadership positions, making the club completely open to suggestions and actively led by all its members. Additionally, Aftershock does not advertise its meetings the way most clubs do. Rather than submitting announcements or posting fliers, the composition of the club occurred organically.

“It’s not about the size or amount of members, but it’s a ministry that God has at this school for us to know the word, worship our God and to try our best to live it out,” senior David Lim said.

Every Tuesday at lunch, the club holds its weekly meeting in Calero’s room 307. Similar to Sunday service, a time of worship for church friends and family to profess their faith, the students of Aftershock model their meetings to emulate such an open environment.

The meeting is led by a prayer group that opens with a song of faith and prayer. The members then sing along with the song lyrics displayed on the projector.

Following the opening prayer, adviser Christian Calero often discusses  a verse from  the Bible focusing on the three W’s: worship, word, witness.

Occasionally, pastors from neighboring churches visit to sermonize or students organize multiple verses and present them to the fellow members during the meeting.

“What [this club’s] going to be, I’m not exactly sure, it’s not my decision. But what I’d like it to be is a place that feels safe for both Christians and non-Christians,” Calero said. “I want it to be a welcoming place where students who are interested in Christianity can be with people who are like them.”

Since social studies teacher Bill Zylstra formed the club, the purpose and definitions have changed as time went on. Calero took over the advisor position in 2005, dubbing  the club “Aftershock” after a verse in the Bible. He said that he believes that  it was in God’s vision that the religious club was prospering.

“The fact that I live in a country where people who are Christian can gather together is a blessing. Around the world, people are persecuted, martyred everyday for their religion, so the greatest moment is today and tomorrow and every day,” Calero said.