landslide information for students

The greatest disasters, like lahars or mudslides, happen suddenly. may also cause a landslide. Landslide, the movement downslope of a mass of rock, debris, earth, or soil. This page was last changed on 29 September 2020, at 12:12.

A landslide is defined as the movement of a mass of rock, mud or debris down a slope due to gravity. Heavy or sustained rainfall or rapidly melting snow and ice can cause a mudflow. To re-enable the tools or to convert back to English, click "view original" on the Google Translate toolbar. Human activities such as deforestation, mining, constructions, vibrations from big machines, etc. The scientists have found out that planets such as Mars and Venus also experience occasional landslides.

Landslides can move slowly, just a few millimeters per year or can move swiftly with speeds up to 200 miles per hour. This website uses cookies to help deliver and improve our services and provide you with a much richer experience during your visit. Landslides are induced by climatic conditions such as heavy rainfalls, snowfalls or natural phenomena such as volcanic activity or earthquakes. The main reasons for landslides in India are indiscriminate cutting down of trees, slash and burn cultivation practices in the hills, road construction and mining activities, increased grazing activities, and rapid urbanization. Content is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. We hope you and your family enjoy the NEW Britannica Kids. While Himalayan Landslides kill one person per 100km. A mass of rock or soil moving down a slope is known as a landslide. The same safe and trusted content for explorers of all ages. What is a landslide and how does it happen? Human modification of the landscape and erosion by water—such as from rain, melting snow, rivers, ocean waves, or rising groundwater—can steepen the slope. A mudflow or debris flow can move trees, huge boulders, automobiles, and buildings, and it can suddenly block the flow of a river with soil or other material and cause extensive flooding. Wildfires can create conditions favorable to landslides, in part by destroying the vegetation that had anchored the soil on a slope. Relevant information on 29 Lo-LEWS have been retrieved from peer-reviewed articles published in scientific journals and proceedings of technical conferences, books, reports, and institutional web pages. A landslide includes a wide range of ground movements, such as rock falls, deep failure of slopes and shallow debris flows. The world’s biggest landslide occurred in 1980 when Mount St. Helens. In a mudflow or debris flow, loose soil, rock fragments (known as debris), or volcanic ash becomes saturated with water and suddenly pours downslope like a fluid, often very fast. According to data of the Defence Terrain Research Laboratory, “Landslides rank third in terms of the number of deaths due to natural disasters. June 16, 2013 – Kedarnath, Uttarakhand –More than 5,700 casualties were recorded because of this dreadful natural disaster. Earthquakes, volcanic eruptions, and human activities such as excavation or changing water-drainage patterns can also cause a landslide. The volume of material moved in a landslide varies. In some types, such as a rockfall, the material separates from the slope and falls rapidly. from Mocomi. Get weekly videos, articles, play ideas and mocomi updates in your inbox.

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