Was That a Nuke?

So there we were, in red/black belt class on a typical Thursday night. I was invited to come because they were at my rank in the system review. At the moment we were standing in cat stance. "Get lower in your stances guys, this is shihan's pet peeve!" Kwanjagnim told us. We all tried to bend our knees a little more when all of a sudden we heard a huge 'CRASH'. The walls, the garage, and the racks all started shaking. We all instantly stood up and looked around. It sounded like a car had just crashed into the studio. Kwanjagnim looked anxiously towards the lobby. "Excuse me." She said walking towards the door. "Man Cub, keep going with cat stance!"

"Yes ma'am." he said running to the front of the class to lead us.

Kwanagnim came in a few seconds later. We all looked at her expectantly. "Don't look at me. I don't know what it was." She said walking upstairs and looking inside the office. "Nothing in here... that is really weird." We were all highly confused. What could've made such a loud noise but have not been visible to us.

After class ended Dancer got a text from a guy at her work down the street. "My friend at work heard it too!" she said.

"Wait! So it wasn't something right by us?" I asked.

"No! It was heard all over PG!" Dancer responded.

"I wonder if it was a car wreck." Tio said.

"I think it was a nuke." I said.

When I got home I told my family about what had happened. Later that night on the news there was a story about a house exploding in PG. It shook the whole town and blew out the windows of surrounding buildings. It was several streets away from the studio, but it still sounded like we had been hit by a car! I drove past the house, or the foundation full of rubble, the next day. There was a huge tree next to it with pieces of debris in the top. Wow! How cool is it to experience something like that before the story comes out!

Here is the story.