2D Dynamic Rupture

A simple MATLAB code for simulating 2-D dynamic rupture in isotropic elastic media using the finite-difference method.

The code includes examples of subshear and supershear rupture.

Numerical Method

• 2-D isotropic elastic wave equation
• Staggered-grid finite-difference method
• Second-order accuracy in space
• Second-order accuracy in time
• Linear slip-weakening friction law
• Sponge absorbing boundary

Files

2D-Dynamic-Rupture/
│
├── dynamic_rupture_2d.m     # Core dynamic rupture solver
├── demo_subshear.m          # Subshear rupture example
├── demo_supershear.m        # Supershear rupture example
├── rwb_colormap.m           # Red-white-blue colormap
│
└── Results/                  # Simulation results