answersLogoWhite

0

Landslides

Landslides are a geological event where large portions of ground break loose and slide down a slope. they can cause large amounts of damage, and are generally quite dangerous.

366 Questions

How do landslides floods and droughts affect the earth?

Landslides are the rapid movement of rock fragments and soil. They can cause many deaths, and affect our resources, such as contaminating the water.

How are landslides causes?

Landslides typically occur after periods of heavy rain, when the ground has become waterlogged and unable to hold together. However, landslides can also be triggered by mining, leaking water pipes, earthquakes and volcanic eruptions.

Why are landslides common in California?

Landslides usually occur after an earthquake so they are quite likely to occur in Hawaii because of it's seismic and volcanic activity they are also common in the cascade mountains.

Do tornadoes cause landslides?

Yes, and some of the largest casualties in hurricanes/typhoons/cyclones have come from landslides caused by very heavy rains. These storms can drop 10-20 inches of rain, or even more, over one area. The irony is that the heaviest rain typically falls in mountainous regions due to orographic lift, and of course these regions are also most prone to landslides. This has been a problem, for example, in Hispaniola as well as parts of Central America (Hurricane Mitch comes to mind).

Why do trees stop landslides?

The roots of trees act to prevent the formation of shear surfaces within soils as well as acting to increase the soils shear strength. AS it is the shear strength of a soil that is exceeded when a landslide occurs, the presence of the tress can help to prevent this.

Further to the above, the tree canopy acts to reduce the volume and rate of water that reaches the ground surface during a rain storm. This can reduce scour (where top soil is washed away) and also attenuates (spreads the infiltration over a greater length of time) the rate of infiltration of water into the soil. This stops the pore water pressure from increasing as much as may otherwise occur and as higher pore water pressure acts to reduce the strength of soils (it pushes the soil grains apart reducing the soil strength) and rock masses this can help to prevent landslides.

Finally, trees through their roots take water from the soil. This generates soil suction (negative pore water pressures) which can help bind the soil together increasing its shear strength and making landslides less likely to occur.

How you can take care of the environment so as to prevent flooding and landslides?

You can't prevent flooding and landslides - these are natural processes that occurred long before humans and will continue long after our species is dead and gone. However, you can take steps to minimize the environmental impact of these as well as the devastation on human constructs like homes and businesses.

First, don't support development in flood zones - this would be the majority of the coasts around the world, as well as swamps and wetlands. These areas provide important buffers against flooding so that large volumes of topsoil aren't lost in large rains or sea surges. Second, encourage the planting of deep-rooting native plants such as coastal grasses and trees - their roots help hold the soil in place against the pull of moving water. Third, reduce your impact as much as possible - buy what you need, but not more, reduce/reuse/reycle, keep your energy consumption down as much as possible, etc.

What are mitigation strategies for landslides?

For landslides, minimize the water above them. That's the right place to drain.

Plant trees on a potential slip site, and do not build on or below ancient slips.

What rhymes with landslide?

Some words that rhyme with "landslide" include "waterside," "riverside," and "subdivide."

What can change Earth's surface as a result of the force of gravity is it wind ice landslides or plant root?

Gravity is the driving force behind:-

wind (convection currents can only happen in a gravity field)

ice (Ice moves and erodes under the pull of the force of gravity)

Landslides (here the motive power is the pull of gravity)

Is landslide a compound word?

Erm... yes. The word describes falling or sliding chunks of earth. Land + Slide = Landslide

What are the effects of landslide?

Landslides can kill people or hurt them. They are usually made by earthquakes or volcano eruptions. the effects are rocks and land sliding fast down a slope or mountain and my hurt roads and cause traffic.

+++

They can also be a part of weathering and erosion, and then usually occur after a period of heavy rain has put enough water into the ground to lubricate the slip mass and plane.

When did Gros Ventre landslide happen?

Gros Ventre landslide happened in 1925.

Is a landslide deposition or erosion?

When soil moves from one location to another location, it is being eroded in the location that it is leaving, and it is being deposited in the location where it is arriving. Hence, a landslide is both deposition and erosion.

Who did Ronald Reagan defeat in one of the biggest presidential election landslides?

Incumbent President Ronald Reagan won reelection in the 1984 presidential election defeating Walter Mondale. In the 1984 election Ronald Regan received 525 (97.58%) of the 538 electoral votes. Walter Mondale received 10 electoral votes from his home state of Minnesota and 3 electoral votes from the District of Columbia.

Does wind cause most landslides?

No. Wind plays little if any role in landslides. Most landslides are caused by heavy rain on unstable slopes, expecially where vegetation has been removed or burned. Earthquakes are another common cause of landslides.

What causes landslides in California?

There are a number of factors. First of all, California is geologically active, with mountains being thrust up by tectonic activity. The slopes of these mountains are oversteepened, meaning that, at the current slope angles are unstable. The vegetation that holds the soil in place is prone to fire, which removes the support, of the plant roots. This leaves the slopes vulnerable during the heavy rains that California can experience in the winter.

California is also prone to earthquakes, which trigger landslides.

Why do peoople live near landslide prone areas?

People often do not think about the potential for natural disasters where they live if they have not seen such disasters firsthand. They will rationalize with thoughts like "It will never happen here." In other cases the people or companies selling the property may downplay the risk of landslides or may not do the necessary research on the risks the area poses.

Who wrote the lyrics for the song Landslide by The Dixie Chicks?

'Landslide' was written by Stevie Nicks of Fleetwood Mac and released on that band's self-titled 1975 Album. It has since been covered by both the Dixie Chicks and the Smashing Pumpkins.

What is the definition of landslides?

A top layer of land moving down a hill, generally under the influence of heavy rainfall.