Parameters
Key Concepts
Directivity: Seismic waves "pile up" in the direction of rupture, causing short, high-amplitude shaking. In the opposite direction, waves are spread out, causing longer, weaker shaking.
Supershear Rupture: When Vįµ£ > Vā, the rupture outpaces its own shear waves, creating a seismic boom (Mach front) similar to a supersonic jet.