What is the brief definition of landslide?

A landslide is defined as the movement of a mass of rock, debris, or earth down a slope. Landslides are a type of “mass wasting,” which denotes any down-slope movement of soil and rock under the direct influence of gravity.

What is the best definition of mudflow?

Definition of mudflow : a moving mass of soil made fluid by rain or melting snow also : lahar.

What are the causes of mudflows?

Mudflows can be caused by unusually heavy rains or a sudden thaw. They consist mainly of mud and water plus fragments of rock and other debris, so they often behave like floods. They can move houses off their foundations or bury a place within minutes because of incredibly strong currents.

What is landslide and its effects?

A landslide, sometimes known as landslip, slope failure or slump, is an uncontrollable downhill flow of rock, earth, debris or the combination of the three. Landslides stem from the failure of materials making up the hill slopes and are beefed up by the force of gravity.

What are the 2 types of landslide?

Slides are characterised by a failure of material at depth and then movement by sliding along a rupture or slip surface. There are two types of slide failure, rotational slides (slumps) and translational (planar) slides.

What are the main types of landslide?

Landslides in bedrock

• Rock falls. Single and small rock falls from cliffs build up to form aprons of scree or talus, sometimes developing over long time periods.
• Rock slope failures. This group of landslides varies greatly in features.
• Rotational landslides.
• Debris flows.
• Creep.
• Solifluction.
• Translational slides.

What are the 2 types of landslides?

What is a mudslide geography?

What Is a Mudslide? A mudslide, also called a debris flow, is a type of fast-moving landslide that follows a channel, such as a river. A landslide, in turn, is simply when rock, earth, or other debris moves down a slope.

What do you do in a mudslide?

Here’s what you should do if a mudslide occurs or if you know one is likely to occur.

1. Evacuate immediately.
2. Contact your police or fire department or your local public works to inform them as well.
3. Listen for unusual sounds.
4. If you are near a stream or channel, be alert for any sudden increase or decrease in water flow.

How can we prevent mudslides?

Minimize home hazards

1. Plant ground cover on slopes to stabilize the land, and build retaining walls.
2. Build channels or deflection walls to direct the flow around buildings.
3. Remember: If you build walls to divert debris flow and the flow lands on a neighbor’s property, you may be liable for damages.

What are risks of landslides?

Factors that trigger landslide movement include heavy rainfall, erosion, poor construction practices, freezing and thawing, earthquake shaking, and volcanic eruptions. Landslides are typically associated with periods of heavy rainfall or rapid snowmelt and tend to worsen the effects of flooding.

What is landslide PDF?

INTRODUCTION. A landslide occurs when stability conditions of the slope is disturbed either by the increase. of stress imposed on the slope and / or by the decrease in strength of the earth material. building up the slope and it involves enmass downward movement of earth material under. the influence of gravity.