Transcript 1 - readforpleasure

Causes and Effects of
Disasters
Natural
Made by Sunwoo Son
Natural Disasters
The dictionary definition of ‘Natural’ means exiting in nature; not
made or caused by humans and ‘Disaster’ means an unexpected
accident that kills a lot of people or causes a lot of damage.
They were always the subject of fear. Ancient Greeks got the
motivation of their gods and most of their gods have his/her
symbol, like Zeus(Jupiter) could strike thunders and Gods of Wind
and Rainstorm could cause flood. They also believed that Typhon,
the hideous monster, was trapped under the mountain and made
the volcanoes erupt.
Back then, natural disasters were something that couldn’t be
explained if they didn’t borrow the names of God and non-human
creatures.
Nowadays
Anyways, natural disasters’ secrets are unveiled a lot nowadays,
and we can even predict some natural disasters like earthquakes.
Saying in addition, some people say that animals act strange
before an earthquake like birds flying away or toads crawl out,
but it has no scientific sense to it.
However, there are many countries which can’t prepare/settle
the situation-especially after earthquakes.
Earthquakes
Lets start with earthquakes.
Earthquakes are basically the movements and the shake of
Earth’s surface (plates), and the sudden release of the energy
causes in the Earth’s crust creates ‘seismic energy.’ It is
measured in a scale called ‘Richter scale’. Many earthquakes
take place near the Ring of Fire- which is an area in the basin
of the Pacific Ocean where a large number of volcanoes are
gathered.
If it takes place in a country or a place near the sea, there
can be possibilities of tsunami arriving together.
The Chilean Earthquake
This is the worst
earthquake ever in the
history was the 1960
Great Chilean earthquake,
recording magnitude
9.5- which could be felt
from a place 1,000km
away, and killed 6000
people in the place.
Valdivia, Chile
Tsunami
A tsunami (plu. tsunamis) from Japanese (津波), meaning
‘harbor wave’, also known as a seismic sea wave or as a tidal
wave, is a series of waves in a water body caused by the
displacement of a large volume of water, generally in an ocean
or a large lakes. Earthquakes, volcanic eruption, etc. can cause
tsunami.
As you can derive a brief idea from its name, Japan has the
longest history of tsunamis, while the 2004 Indian Ocean
earthquake and tsunami inscribed the awareness in people’s
mind.
2011 Tohoku
Earthquake and Tsunami
This is one of the most
recent earthquake-andtsunami-combined
natural disaster, which had
a magnitude 9.0 and a
tsunami wave height
reaching 40.5 meters,
which caused 15,891 deaths,
6,152 injuries and 2,584
missing people.
Tsunami damage between
Sendai and Sendai Bay
Tokyo tower’s antenna
damaged because of the hit
Thank you for
watching!
Information ∙ Picture from wikipedia.com