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A rockslide is a rapid downward movement of rock fragments sliding over an inclined surface. Landslides, in general, occur when gravitational forces on a slope overcome the shear strength of the materials forming that slope. This can be triggered by factors like erosion, excavation, increased water content, or seismic activity.123

Landslides are classified by their movement type (slides, flows, falls, etc.) and the material involved (rock, debris, or earth). Rockslides specifically involve the displacement of rock along one or more shearing surfaces. Mitigating landslide hazards involves restricting development in susceptible areas, implementing early warning systems, and constructing protective structures.23

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