Transcript Document

Tsunamis
Mega Waves
What is a Tsunami and How it
Effects Humans
• A tsunami is a very terrible force. Every
year they kill lots of people. A tsunami is a
huge wave with tons of power.
• Most deaths occur after the tsunami hits.
Most people drown but some are killed by
the impact of the giant wave.
How They are Caused
• They are caused by volcanic eruptions
which lifts the water up and creates a
tsunami. Basically a tsunami is water in the
ocean being displaced.
• Most are caused by Earthquakes with others
being caused by meteors and landslides
Where They Occur Most Often
• They mainly occur in the Pacific Ocean.
This is because of all the volcanoes and
tectonic plates. Lots of tsunamis hit Japan
each year.
Facts
• Did you know that the closer tsunamis get to land
the slower they go and the larger it gets. They can
get up to speeds of 600 mph in deep water and 100
mph in shallow water.
• Most scientists think it was a meteor that killed
the dinosaurs. I think that could be right but what
if hit the ocean a created a huge tsunami that
wiped out most of the land.
Facts continued
• Tsunamis are normally 30 feet high but can
get as big 100 or even 200 feet. The largest
ever was 210 feet. It hit Siberia’s
Kamchatka Peninsula
• 95% of all tsunamis are caused by
earthquakes
• Tsunamis can be more than one wave and
wave crests can be 5-90 minutes apart
Humans and Tsunamis
• There are two worldwide tsunami detection
stations. They both belong to National
Oceanic and Atmospheric Administrations.
One is located in Palmer, Alaska and the
other is located in Ewa Beach, Hawaii.
Tsunamis and Humans Continued
• A tsunami in July of 1998 hit Papa New
Guinea. It consisted of three huge waves.
The waves were around 30 feet high. An
estimated 16 000 people died. In 1883 a
volcano erupted on the island of Krakatoa.
It created a tsunami that killed 36 000
people.
Devastating Tsunamis
• On December 26, 2004 a earthquake rocked
the Indian Ocean creating a tsunami that has
devastated Asian countries like Sri Lanka
and Thailand. The death toll has climbed
over 155 000 and could get larger. Over two
billion dollars in relief money have raised.
Around the world people are in grief.
Suckers