I think you are looking at two events. The one in your yard looks like leader stroke that never “connected” to the main charge. The more distant one behind the tree did connect.
Every lightning strike starts with a leader stroke. They have a distinct sound.
Looks like you almost witnessed a strike in your yard!
Can the leader stroke take out a lectric transformer? As my neighbors was fried and I heard the thunder and clap and saw a weird light in my office of my house 32 feet away. I thought I was dead.