In the scene where Ponyboy gets jumped, he has nothing to defend himself with but his bare hands, so the socs attack him. They threatened him and with a knife. On page 5, Ponyboy says, "It occurred to me then that they could kill me. I went wild. I started screaming for Soda, Darry, anyone. Someone put a hand over my mouth. I bit it hard as I could, tasting the blood running through my teeth." That is a direct example from the text of the theme of violence.
This is a red hell!
On page 56, another example of violence is when a soc tries to drown Ponyboy. They were just insulting each other at first, but then the soc went and forced Ponyboy down into the fountain. On that same page he quotes, "I'm drowning, I thought, they've gone too far... A red haze filled my mind and I slowly relaxed."
Another example of violence is when Johnny just straight up kills a soc. On Page 56, Ponyboy is nearly killed by Bob who tries to drown him in the water fountain, which triggers Johnny to kill Bob. Johnny quotes, "I killed him," he said slowly, "I killed that boy."
On Page 92, the description of the fire at the church is very violent. Ponyboy quotes, "Suddenly, in the red glow and the haze, I remembered wondering what it was like in a burning ember, and I thought: Now I know, it's a red hell." That is the scene where Ponyboy, Johnny, and Dally are saving the kids in the church.
Another violent scene in The Outsiders is when Dally dies. He gets shot by the police after he robs a grocery store. On page 154, Ponyboy says, "Dally didn't die a hero. He died violent and young and desperate, just like we all knew he'd die someday."
The final violent scene I have is the rumble, on page 144, the fight is very violent and crazy. Ponyboy gets a concussion from being kicked in the head. He also quotes, "Some Sochad knocked out one of our bunch and was kicking me as hard as he could. But I had both arms wrapped around the other Soc's neck and refused to let go."