Download Tsunami - LSJS-Year-6-wiki

By: Yazan HAJJAR
What is a Tsunami?
A Tsunami is a set of huge waves of water that are usually caused by earthquakes or
volcanic eruptions. This happens when an underwater earthquake pushes the
water upwards and creates a series of long waves that travel at approximately eight
hundred kilometers per hour towards the seashore. The Tsunami waves get higher
as they reach the shallow water. At that point, the water on the shore might
retreated into the ocean and the big Tsunami waves will then strike the coast and
damage everything in front of them up to one kilometer inland.
What is a Tsunami (continued)?
A Tsunami is not only a series
of huge waves crushing
everything that is in front of
them, but they even make
really dangerous floods, and in
the end of the Tsunami coastal
flood, all the water is retreated
back into the ocean. These
huge waves are one of the most
deadly natural disasters by the
way that they smash or kill
every single thing standing in
their way. Tsunamis can also be
formed by volcano eruptions,
land slides and earthquakes.
Where do Tsunamis occur most?
Most Tsunamis occur in the
pacific and Indian oceans.
Tsunamis mostly occur near
countries like Japan, India and
Indonesia. Regions in Tsunami
danger zones often have
warning systems in place to
give as much time as possible
to run away. Japan has the most
probability than any other
place in the world for a
Tsunami to happen. In fact
Japan has had most Tsunamis
than any other place in history.
The 2004 Indonesian Tsunami - disaster.
In December 2004, a powerful
earthquake moved the seabed off
Indonesia in Southeast Asia.
Strong waves spread out like
ripples. The waves travelled 3,100
miles to wreck towns on the
shores of India and even Africa.
The damage caused by the
Tsunami was worst on the coast
of Indonesia. Whole towns were
completely flattened by waves.
Boats were swept onto the shore
and carried far inland. This
Tsunami was given four names:
“2004 Indian Ocean Tsunami”,
“South
Asian
Tsunami”,
“Indonesian Tsunami” or “Boxing
Day Tsunami.”
How does global warming link to Tsunamis?
Scientists say that as the
atmosphere heats up and
geology is altered, global
warming may trigger even
more Tsunamis or other
natural disasters.
Disappearing
Greenland
and Antarctic Ice sheets
threaten to let loose
underwater
landslides,
triggering Tsunamis that
could reach the coast of
Britain. It seems that
changes in the earths crust
may cause more Tsunamis,
but Tsunamis have no
direct link with global
warming.
Tsunami Videos
How Tsunami’s work
http://www.youtube.com/watch?v=N1aWz8CoeU4
New dramatic video: Tsunami wave spills over seawall, smashes boats, cars
http://www.youtube.com/watch?v=5-zfCBCq-8I