Hello, I want to write an earthquake simulation for one of my programming classes and wanted to know where to look to get started understanding some of the forces and other properties of earthquakes. This is for a video game physics class so it doesn't have to be super accurate the class is more about learning how to incorporate physics into your games but I would like it to look somewhat realistic. I'm planning on using opengl to render some buildings made of blocks and having them crumble when someone shakes an iPad. Any help on how to get started from the physics side would be very helpful. Thanks!