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Tsunamis 101 | National Geographic


a tragic scene entire cities flooded

a tragic scene entire cities flooded entire towns inundated an unending

entire towns inundated an unending

entire towns inundated an unending stream of floating debris buildings cars

stream of floating debris buildings cars

stream of floating debris buildings cars people swept away in an unstoppable wave

people swept away in an unstoppable wave

people swept away in an unstoppable wave it’s a brutal reminder tsunamis are

it’s a brutal reminder tsunamis are

it’s a brutal reminder tsunamis are dangerous and unpredictable but what

dangerous and unpredictable but what

dangerous and unpredictable but what causes these giant waves and what can be

causes these giant waves and what can be

causes these giant waves and what can be done to minimize their impact tsunamis

done to minimize their impact tsunamis

done to minimize their impact tsunamis can strike with little warning because

can strike with little warning because

can strike with little warning because they’re usually triggered by a sudden

they’re usually triggered by a sudden

they’re usually triggered by a sudden displacement of ocean water like

displacement of ocean water like

displacement of ocean water like volcanic eruptions landslides meteorites

volcanic eruptions landslides meteorites

volcanic eruptions landslides meteorites or the most common culprit earthquakes

or the most common culprit earthquakes

or the most common culprit earthquakes in the deep ocean a typical tsunami wave

in the deep ocean a typical tsunami wave

in the deep ocean a typical tsunami wave is barely noticeable and poses little

is barely noticeable and poses little

is barely noticeable and poses little threat but the waves can spread out

threat but the waves can spread out

threat but the waves can spread out thousands of miles rolling across the

thousands of miles rolling across the

thousands of miles rolling across the ocean at speeds up to 600 miles per hour

ocean at speeds up to 600 miles per hour

ocean at speeds up to 600 miles per hour as the rolling water reaches the

as the rolling water reaches the

as the rolling water reaches the shoreline the waves friction against the

shoreline the waves friction against the

shoreline the waves friction against the shallower floor slows it down and raises

shallower floor slows it down and raises

shallower floor slows it down and raises its height by the time it reaches the

its height by the time it reaches the

its height by the time it reaches the shore the weight can be as tall as 100

shore the weight can be as tall as 100

shore the weight can be as tall as 100 feet unlike ordinary waves a tsunami

feet unlike ordinary waves a tsunami

feet unlike ordinary waves a tsunami wave doesn’t crest and break instead it

wave doesn’t crest and break instead it

wave doesn’t crest and break instead it moves forward like a solid wall of water

moves forward like a solid wall of water

moves forward like a solid wall of water that crashes over the coastline

that crashes over the coastline

that crashes over the coastline obliterating almost everything in its

obliterating almost everything in its

obliterating almost everything in its path and just when you think the danger

path and just when you think the danger

path and just when you think the danger is over it recedes dragging everything

is over it recedes dragging everything

is over it recedes dragging everything back to the ocean tsunamis have multiple

back to the ocean tsunamis have multiple

back to the ocean tsunamis have multiple waves which can continue to hit the

waves which can continue to hit the

waves which can continue to hit the shore for several hours causing even

shore for several hours causing even

shore for several hours causing even more destruction the word tsunami

more destruction the word tsunami

more destruction the word tsunami originates from Japan a country that

originates from Japan a country that

originates from Japan a country that sits on a geographic location that makes

sits on a geographic location that makes

sits on a geographic location that makes it an easy target for these natural

it an easy target for these natural

it an easy target for these natural disasters in 2011 it was struck by a

disasters in 2011 it was struck by a

disasters in 2011 it was struck by a tsunami that claimed nearly 16,000 lives

tsunami that claimed nearly 16,000 lives

tsunami that claimed nearly 16,000 lives but the deadliest tsunami in has

but the deadliest tsunami in has

but the deadliest tsunami in has is believed to be the Indian Ocean

is believed to be the Indian Ocean

is believed to be the Indian Ocean tsunami of 2004 the US Geological Survey

tsunami of 2004 the US Geological Survey

tsunami of 2004 the US Geological Survey estimated that tsunami released the

estimated that tsunami released the

estimated that tsunami released the energy equivalent of 23,000 Hiroshima

energy equivalent of 23,000 Hiroshima

energy equivalent of 23,000 Hiroshima type atomic bombs an earthquake created

type atomic bombs an earthquake created

type atomic bombs an earthquake created an estimated 600 mile rupture on the

an estimated 600 mile rupture on the

an estimated 600 mile rupture on the ocean floor

ocean floor

ocean floor this caused the tsunami to form and then

this caused the tsunami to form and then

this caused the tsunami to form and then travel at the speed of a jetliner

travel at the speed of a jetliner

travel at the speed of a jetliner reaching over 11 countries traveling

reaching over 11 countries traveling

reaching over 11 countries traveling over 3,000 miles killing more than

over 3,000 miles killing more than

over 3,000 miles killing more than 220,000 people because they can strike

220,000 people because they can strike

220,000 people because they can strike so quickly with such deadly force

so quickly with such deadly force

so quickly with such deadly force tsunami warning centers around the globe

tsunami warning centers around the globe

tsunami warning centers around the globe are on constant alert monitoring

are on constant alert monitoring

are on constant alert monitoring underwater earthquakes large enough to

underwater earthquakes large enough to

underwater earthquakes large enough to trigger massive waves their ultimate

trigger massive waves their ultimate

trigger massive waves their ultimate goal is to alert vulnerable coastlines

goal is to alert vulnerable coastlines

goal is to alert vulnerable coastlines and give residents time to seek higher

and give residents time to seek higher

and give residents time to seek higher ground before a tsunami hits

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