NATURAL DISASTERPRESENT BY:

NURULNAJWA JAAFAR

NURUL AFIQAH MOHD RAZALI

NUR FARAH HANIM MOHD SAHAR

FITRIANI RUSSANI

OBJECTIVEKnow the meaning of Natural Disaster.

Know the causes and effect of Natural Disaster.

Know how Natural Disaster occur.

How to Prevent the effect on enviroment and effect on human.

WHAT ARE THE NATURAL DISASTER

Natural disaster is an event

with a natural, as opposed to

human, cause that result in

large-scale loss of life or

damage to property.

It can be related to weather,

geology,biology or even

factors outside the Earth.

In some case, natural and

human factors may combine to

produce a disaster.

HOW NATURAL DISASTER OCCUR

Movements of Earth:

Occur with minimum amount of warning.

It difficult to predict and impossible to stop.

Action that can be done is to take appropriate action

to limit damage and loss of life after they occur.

HOW NATURAL DISASTER OCCUR

Weather : Will usually be some degree of advanced warning, but since weather

is unpredictable, nothing can be done to stop these disasters fromdeveloping once the weather system develops.

HOW NATURAL DISASTER OCCUR

Extreme Weather : Like floods, mudslides, landslides and famine.

Events or are supplementry to othernatural disasters.

Often they are the result of extreme and unforeseen conditions.

TYPES OF NATURAL DISASTER

RING OF FIRE

Some 80 % of all the planet's earthquakes occur along the rim of the Pacific Ocean, called the "Ring of Fire" because of the preponderance of volcanic activity there as well.

* preponderance (greater of number)

What is the meaning ?

How does it form ?

EARTHQUAKE

MEANING

A sudden movement of the earth's crust caused by the release of stress accumulated along geologic faults or by volcanic activity. Also called seism, temblor.

Scientists assign a magnitude rating to earthquakes based on the strength and duration of their seismic waves.

HOW DOES IT FORM?

HOW DOES EARTHQUAKE RELATED TO

TSUNAMI?

TSUNAMI

TSUNAMI

a very high, large wave in the ocean that is usually caused by an earthquake under the sea and that can cause great destruction when it reaches land

VOLCANO

WHAT IS THE MEANING???

A mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapour, and gas are or have been erupted from the earth’s crust.

HOW DOES IT FORM?

Volcanoes are formed when magma from within the Earth's upper mantle works its way to the surface. At the surface, it erupts to form lava flows and ash deposits. Over time as the volcano continues to erupt, it will get bigger and bigger.

• Improve soil fertility• Produce geothermal energy• Attract millions of visitorsPros

• Destroy crops, habitat & cities• Produce gases that aid global

warning• Can lead to earthquakes & tsunamisCons

DROUGHT

DROUGHT

A prolonged period of abnormally low rainfall, leading to a shortage of water:

FLOOD

FLOOD

An overflow of a large amount of water beyond its normal limits, especially over what is normally dry land

WHAT CAUSES FLOODS?

A flood is caused by a combination of heavy rainfall causing river / oceans to over flow their banks, and can happen at any time of the year, not just in the winter.