What causes rockslides?

Erosion is the gradual wearing away of the Earth's surface by water, wind, ice, and other geological activities. When rocks are exposed to these forces, they can become weakened and more susceptible to landslides.

2. Weathering

Weathering is the process of breaking down rocks into smaller pieces through physical and chemical processes. Physical weathering includes the action of frost, ice, heat, and wind. Chemical weathering includes the action of water, oxygen, and acids. When rocks are weathered, they become weaker and more susceptible to landslides.

3. Gravity

Gravity is the force that pulls objects towards the center of the Earth. When rocks are located on steep slopes, they are more likely to experience landslides because of the pull of gravity.

4. Earthquakes

Earthquakes can trigger landslides by shaking the ground and causing rocks to fall from steep slopes. Earthquakes can also cause the ground to liquefy, which can further increase the risk of landslides.

5. Volcanic activity

Volcanic activity can trigger landslides by generating lava flows, ash clouds, and pyroclastic flows. These materials can block rivers and streams, which can lead to flooding and landslides.

6. Human activity

Human activities, such as deforestation, mining, and construction, can also increase the risk of landslides. Deforestation can remove trees and other vegetation that help to hold soil in place. Mining and construction can create unstable slopes that are more likely to experience landslides.