Landslide (theories)

Landslide theories explain how and why land moves suddenly downhill. They focus on factors like soil and rock stability, weight, surface conditions, and moisture. When underlying forces, such as heavy rain, earthquakes, or human activity, weaken the ground's strength or increase its weight, it can slide or flow causing a landslide. Different theories analyze whether movement occurs as a coherent block (slide), material flows like a fluid (flow), or mixes both behaviors (complex). These models help predict landslide risk and design preventions by understanding how terrain, materials, and environmental changes influence slope stability.