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Landslides | National Geographic


Portland Oregon February 1996 a mountain

Portland Oregon February 1996 a mountain begins to move and for a contractor and

begins to move and for a contractor and

begins to move and for a contractor and his son there’s only one option get out

his son there’s only one option get out

his son there’s only one option get out of the way fast

Oh God they had just gone head-to-head

Oh God they had just gone head-to-head with one of nature’s most powerful and

with one of nature’s most powerful and

with one of nature’s most powerful and destructive forces a landslide the

destructive forces a landslide the

destructive forces a landslide the surface of our planet is constantly

surface of our planet is constantly

surface of our planet is constantly reshaping itself and landslides are a

reshaping itself and landslides are a

reshaping itself and landslides are a major reason they strike wherever the

major reason they strike wherever the

major reason they strike wherever the soil is loosened by rain or tugged by

soil is loosened by rain or tugged by

soil is loosened by rain or tugged by gravity it can be a rock fall or a

gravity it can be a rock fall or a

gravity it can be a rock fall or a raging river of mud but wherever the

raging river of mud but wherever the

raging river of mud but wherever the ground fails it can result in massive

ground fails it can result in massive

ground fails it can result in massive destruction on average landslides kill

destruction on average landslides kill

destruction on average landslides kill more than 8,000 people every year around

more than 8,000 people every year around

more than 8,000 people every year around the world they can crash down without

the world they can crash down without

the world they can crash down without warning and travel for several miles in

warning and travel for several miles in

warning and travel for several miles in the u.s. landslides occur in all 50

the u.s. landslides occur in all 50

the u.s. landslides occur in all 50 states but some places are more

states but some places are more

states but some places are more dangerous than others landslides usually

dangerous than others landslides usually

dangerous than others landslides usually follow other natural disasters like

follow other natural disasters like

follow other natural disasters like volcanic eruptions earthquakes wildfires

volcanic eruptions earthquakes wildfires

volcanic eruptions earthquakes wildfires storms and floods steep slopes are

storms and floods steep slopes are

storms and floods steep slopes are obvious places for landslides as our

obvious places for landslides as our

obvious places for landslides as our areas that have been hit by landslides

areas that have been hit by landslides

areas that have been hit by landslides before but they also frequently occur

before but they also frequently occur

before but they also frequently occur where people have radically altered the

where people have radically altered the

where people have radically altered the landscape Hills stripped of vegetation

landscape Hills stripped of vegetation

landscape Hills stripped of vegetation slopes modified for roads and buildings

slopes modified for roads and buildings

slopes modified for roads and buildings and as our cities and towns expand

and as our cities and towns expand

and as our cities and towns expand further landslides become more frequent

further landslides become more frequent

further landslides become more frequent and more destructive

in 1998 disaster struck the Southern

in 1998 disaster struck the Southern California suburb of Laguna Niguel few

California suburb of Laguna Niguel few

California suburb of Laguna Niguel few realized that the man-made hill beneath

realized that the man-made hill beneath

realized that the man-made hill beneath them could fail the ground eroded by

them could fail the ground eroded by

them could fail the ground eroded by heavy rains began to give way and the

heavy rains began to give way and the

heavy rains began to give way and the houses came crashing down seven were

houses came crashing down seven were

houses came crashing down seven were seriously damaged and five of them

seriously damaged and five of them

seriously damaged and five of them tumbled down the cliff face though the

tumbled down the cliff face though the

tumbled down the cliff face though the ground cracked and the earth plummeted

ground cracked and the earth plummeted

ground cracked and the earth plummeted no one was injured

no one was injured

no one was injured the residents of Laguna Niguel were

the residents of Laguna Niguel were

the residents of Laguna Niguel were lucky they still had their town the

lucky they still had their town the

lucky they still had their town the following year in Venezuela torrential

following year in Venezuela torrential

following year in Venezuela torrential rains triggered widespread landslides

rains triggered widespread landslides

rains triggered widespread landslides across a twenty five mile wide strip of

across a twenty five mile wide strip of

across a twenty five mile wide strip of coastline in the state of Vargas

coastline in the state of Vargas

coastline in the state of Vargas communities were buried under waves of

communities were buried under waves of

communities were buried under waves of mud and debris

mud and debris

mud and debris it’s estimated that 30,000 people were

it’s estimated that 30,000 people were

it’s estimated that 30,000 people were killed around ten percent of the area’s

killed around ten percent of the area’s

killed around ten percent of the area’s population accurate death tolls were

population accurate death tolls were

population accurate death tolls were difficult to establish because so many

difficult to establish because so many

difficult to establish because so many people vanished under the mud or were

people vanished under the mud or were

people vanished under the mud or were swept out to sea though the catastrophe

swept out to sea though the catastrophe

swept out to sea though the catastrophe was on a massive scale it is by no means

was on a massive scale it is by no means

was on a massive scale it is by no means unique such disasters have happened

unique such disasters have happened

unique such disasters have happened before and will happen again as long as

before and will happen again as long as

before and will happen again as long as the earth continues to move people will

the earth continues to move people will

the earth continues to move people will live with the threat of landslides

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