Gourt > Kids and Teens > School Time > Science > The Earth > Natural Disasters and Hazards > Landslides
- This entry refers to the geological term. For political usage, see landslide victory. For the Fleetwood Mac song, see Landslide (song).
A landslide is a geological phenomenon which includes a wide range of ground movement, such as rock falls, deep failure of slopes, and shallow debris flows. Although gravity acting on an over steepened slope is the primary reason for a landslide, there are other contributing factors:
- erosion by rivers, glaciers, or ocean waves create oversteepened slopes
- rock and soil slopes are weakened through saturation by snowmelt or heavy rains
- earthquakes create stresses that make weak slopes fail (see liquefaction, Hope Slide)
- volcanic eruptions produce loose ash deposits, heavy rain, and debris flows.
- vibrations from machinery, traffic, blasting, and even thunder may trigger failure of weak slopes
- excess weight from accumulation of rain or snow, stockpiling of rock or ore, from waste piles, or from man-made structures may stress weak slopes to failure and other structures
- groundwater pressure acting to destabilise the slope
- in shallow soils, the removal of deep-rooted vegetation that binds the colluvium to bedrock.
Special types of landslides
More on [ Landslide ]
Woo hoo! The Phoenix Suns and the UNLV Rebels both won their basketball games by landslides. It's a good day :-) #fb
RinaCali (Catherine) Sun, 20 Dec 2009 05:04:40 -0000
Woo hoo! The Phoenix Suns and the UNLV Rebels both won their basketball games by landslides. It's a good day :-) #fb
Lethal landslides in Ayacucho, where I was last week! http://bit.ly/6xJwGD
JJtravels (Josh Johnson) Sun, 20 Dec 2009 01:06:22 -0000
Lethal landslides in Ayacucho, where I was last week! http://bit.ly/6xJwGD
Govt will declassify 'hazard map' for Klang Valley landslides. Report includes 216 "risky slopes" in Ampang-Ulu Klang http://bit.ly/64U3kN
radziahazmi (Radziah Ismail) Sun, 20 Dec 2009 00:55:59 -0000
Govt will declassify 'hazard map' for Klang Valley landslides. Report includes 216 "risky slopes" in Ampang-Ulu Klang http://bit.ly/64U3kN
e-Environment winner at #Manthan: Save The Hills blog http://savethehills.blogspot.com Praful Rao: We must understand+prevent landslides
MadanRao (Madanmohan Rao) Sat, 19 Dec 2009 20:18:16 -0000
e-Environment winner at #Manthan: Save The Hills blog http://savethehills.blogspot.com Praful Rao: We must understand+prevent landslides
#GOD #JESUS #truth Proverbs26:27 People who set traps for others get caught themselves. People who start landslides get crushed.
faithclubdotnet (Jim Sager) Sat, 19 Dec 2009 19:33:48 -0000
#GOD #JESUS #truth Proverbs26:27 People who set traps for others get caught themselves. People who start landslides get crushed.
ReliefWeb » Panama: Floods and Landslides - Aug 1991: Panama: Floods and Landslides - Aug 1991. Updates on Panama ... http://bit.ly/8C4uMk
VisionairesClub (VisionairesClub) Sat, 19 Dec 2009 11:04:23 -0000
ReliefWeb » Panama: Floods and Landslides - Aug 1991: Panama: Floods and Landslides - Aug 1991. Updates on Panama ... http://bit.ly/8C4uMk
Fly-by Movies of Ancient Landslides - Computer simulation and film footage shows landslides and mudflows that took place in California in 1996 and 1997.
Italian Landslides Photos - A collection of photographs taken by a geologist as he studied landslides and mudflows all over Italy.
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Landslides and Mudflows - Fact sheet describes the warning signs, and advises what to do if you are in the path of one.
Landslides in BC - This illustrated and interactive site from Canada describes the different types and explains what causes them, where they occur, and how they can affect people.
Landslides in the News - The US Geological Survey presents a continually updated list of news stories about recent landsldes around the world.
Meta Description: [ USGS Landslide Hazards Program, responsible for researching, monitoring and forecasting landslide hazards ]
Puget Sound Landslides - A slideshow of photographs and explanations about the causes and effects of landslides in this part of US state of Washington.
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What is a Landslide? - Brief explanation of what causes them, and what sorts of areas are more likely to have them.
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