CALAMITIES CHAPTER 4.pptx

GROUP 3
CALAMITIES
CALAMITIES
WHAT IS CALAMITY?
- An event
causing
great and
often sudden
damage or
distress.
CALAMITIES CHAPTER 4.pptx
NATURAL CALAMITIES
MAN MADE CALAMITIES
FLOOD
AN OVERFLOW OF WATER ONTO NORMALLY DRY
LAND
TYPES OF FLOOD
•
•
•
•
CALAMITIES CHAPTER 4.pptx
CALAMITIES CHAPTER 4.pptx
CALAMITIES CHAPTER 4.pptx
CALAMITIES CHAPTER 4.pptx
•
CALAMITIES CHAPTER 4.pptx
LANDSLIDE
The movement of a mass of rock, debris, or earth
down a slope.
•
TYPES OF LANDSLIDES
TOPPLE
S
•
FALL
S
•
LATERAL SPREADS OR
FLOWS
•
•
TRANSLATIONAL
SLIDES
•
•
•
•
EARTHQUAKE
AN EARTHQUAKE IS A WEAK TO VIOLENT
SHAKING OF THE GROUND PRODUCED BY THE
SUDDEN MOVEMENT OF ROCK MATERIALS BELOW
THE EARTH’S SURFACE.
-Induced Earthquakes. Induced quakes are caused by
human activity, like tunnel construction, filling
reservoirs and implementing geothermal or fracking
projects.
- Volcanic Earthquakes. Volcanic quakes are associated
with active volcanism.
CAUSE
S
•
•
•
•
•
•
•
•
•
TSUNAMI
A tsunami is a series of extremely long
waves caused by a large and sudden
displacement of the ocean, usually the
result of an earthquake below or near the
ocean floor.
-Earthquake, landslides,
volcanic eruption,
extraterrestrial collision
CAUSE
S
In addition to loss of life and mass injuries, other potential
impacts include damage to and destruction of homes and
businesses, ports and harbors, cultural resources,
utilities, and critical infrastructure and facilities. There
may be loss of access to basic services such as power,
sewer, and water.
EFFECT
S
•
•
•
•
•
•
•
•
•
PREVENTION
TORNADO
A violently rotating column of air
touching the ground, usually
attached to the base of a
thunderstorm. Tornadoes are
nature's most violent storms.
CAUSES
Large thunderstorm.
Inside thunderclouds,
warm, humid air rises,
while cool air falls-along
with rain or hail. These
conditions can cause
spinning air currents
inside the cloud.
EFFECT
While the winds themselves are
destructive, the debris they pick up
is often quite dangerous as well.
Most injuries and deaths caused by
tornadoes are from collapsing
buildings and flying debris.
Tornadoes may produce strong,
violent winds, lightening, heavy
rains and flooding
PREVENTION
Go to the basement or an
inside room without
windows on the lowest
floor (bathroom, closet,
center hallway). If
possible, avoid sheltering
in any room with windows.
HEAT WAVE
A heat wave is simply
a period of unusually
hot weather that
typically lasts two or
more days.
A heat wave occurs when there is
high pressure in the atmosphere
that forces hot air downward and
traps it near the ground.
CAUSES
EFFECT
Heatwaves can burden health andemergency services and
also increase strain on water, energy and transportation
resulting in power shortages or even blackouts. Food and
livelihood security may also be strained if people lose their
crops or livestock due to extreme heat.
PREVENTION
Installing cool and green roofs
and cool pavement to reduce the
urban heat island effect. Planting
trees to provide shade and to cool
the air through
evapotranspiration. Pursuing
energy efficiency to reduce
demand on the electricity grid,
especially during heat waves.
THUNDERSTORM
a storm with thunder
and lightning and
typically also heavy rain
or hail.
•Thunderstorms form when warm, moist air rises
into cold air. The warm air becomes cooler,
which causes moisture, called water vapor, to
form small water droplets - a process called
condensation. The cooled air drops lower in the
atmosphere, warms, and rises again. This circuit
of rising and falling air is called a "convection
cell". If this happens a small amount, a cloud will
form. If this happens with large amounts of air
and moisture, a thunderstorm can form
CAUSE
•Most indoor lightning casualties and
some outdoor casualties are due to
conduction. Whether inside or
outside, anyone in contact with
anything connected to metal wires,
plumbing, or metal surfaces that
extend outside is at risk. This
includes anything that plugs into an
electrical outlet, water faucets and
showers, corded phones, and
windows and doors.
What causes lightning to strike a person?
•Learn indoor and
outdoor safety tips
to protect yourself
and your loved ones
from lightning.
How to protect yourself from lightning?
INDOOR SAFETY TIPS
•Avoid water.
Don't touch electronic
equipment.
•Avoid windows, doors,
porches, and concrete.
•Don't use corded phones.
OUTDOOR SAFETY TIPS
•Be aware.
•Go indoors.
•Seek shelter immediately, even if caught out in the open.
•Separate from others.
•Avoid open spaces.
•Don’t stay near tall structures.
A thunderstorm can be even hazardous if accompanied
by lightning, gusty winds, and heavy rain. It can affect
humans, animals, public properties, and even nature
•Impact on Humans:
•Impact on Animals:
•Impact on Properties:
•Impact on Nature:
EFFECT
COLD WAVE
A cold wave is a weather event
involving a cooling of the air, or the
invasion of very cold air, over a large
area.. It is marked by a drop of
average temperature well below the
averages of a region.
•In the Northern Hemisphere, cold waves occur when very
cold, dense air near the surface moves out of its source
region in northern Canada or northern Asia. The core of a
cold wave at the surface is a strong high-pressure center
that forms during winter in high latitudes.
WHAT ARE THE CAUSES OF HEAT AND COLD WAVE?
•Cold waves can have negative impacts on
people, crops, properties and services.
•cause extreme thermal stress to human body,
which may lead to devastating impacts on human
health and well-being.
•Cold waves can cause death and injury to
livestock and wildlife
EFFECT
•
•
PREVENTION
•
•
•
•
•
DROUGHT
Is a prolonged dry period in the natural climate
cycle that can occur anywhere in the world. It is
a slow-onset disaster characterized by the lack
of precipitation, resulting in a water shortage.
Drought can have a serious impact on health,
agriculture, economies, energy and the
environment.
WILDFIRE
A wildfire, forest fire, bushfire,
wildland fire or rural fire is an
unplanned, uncontrolled and
unpredictable fire in an area of
combustible vegetation.
Wildfires can severely impact rural
communities in a number of ways. Fires can
significantly damage infrastructure- homes,
barns, sheds, fencing – as well as farm
equipment, vehicles, and structural damage
to essential services such as electricity and
water.
WHY WILDFIRE IS A NATURAL
DISASTER?
HUMAN INTERVENTION
The action of becoming intentionallyinvolved
in a difficult situation, in order toimprove it
and to survive in everyday living.
LAND DEGRADATION
There are many examples of human failure to use
land resources sustainably. Deforestation occurs
when humans clear forests to use the land either for
agriculture or for habitation. Consequently, forest
cover dwindles significantly, leading to soil erosion
and extinction of plant species. Land animals also
decline in numbers and even face extinction due to
human expansion that encroaches on their natural
habitat and limits their ability to spread geographically.
AIR POLLUTION
One of the biggest environmental impacts of human
activities is air quality. The transportation sector
contributes heavily to air pollution because most forms
of transportation, including cars, planes and ocean
vessels, use fossil fuels. When burned, fossil fuels
release carbon dioxide and other greenhouse gases
into the environment. burning fossil fuels, and
deforestation. Changes like these have triggered
climate change, soil erosion, poor air quality, and
undrinkable water.
MANUFACTURING
Industry grows exponentially with the expansion of the
human population.Manufacturing plants emit carbons
and sulfurs that do not occur naturally in the
environment, causing an imbalance in the quality and
composition of air. Some air pollutants deplete the
ozone layer and expose the Earth to dangerous
radiation from the sun.
WATER CONTAMINATION
Human intervention in the environment also jeopardizes
the supply and flow of clean drinking water. Activities like
waste disposal from residential, commercial and
industrial areas, oil spills and runoff from agriculture all
contaminate bodies of water. The direct deposit of
pollutants into lakes, rivers, seas and streams and
indirect runoff of hazardous substances during the rainy
seasons both impact water sources. Another
environmental issue impacting water systems is
overfishing, which causes a reduction in diversity of
marine life.
Prevention in Human Intervention
How can you prevent man-made disaster?
Locating hazardous sites and materials away from centres of
population. A safe environmental health structure, to ensure e.g.
clean, uncontaminated drinking water. Pilot studies and the
taking of independent environmental health advice before
making potentially hazardous changes.
Prevention in Human Intervention
What can the government do to prevent man made and
natural disasters?
Awareness, education, preparedness, and prediction and
warning systems can reduce the disruptive impacts of a
natural disaster on communities. Mitigation measures such
as adoption of zoning, land-use practices, and building
codes are needed, however, to prevent or reduce actual
damage from hazards.
CALAMITIES CHAPTER 4.pptx
IDENTIFICATION
1-2: What are the two different kinds of calamities?
3.It is an event causing great and often sudden damage or distress
4-5 give me atleast 2 different types of landslide
6-9.4 types of flood
10. a weak to violent shaking of the ground produced by the sudden
movement of rock materials below the earth’s surface.
11.a series of extremely long waves
caused by a large and sudden displacement of the ocean
12.Nature’s most violent storms
13.It occurs when there is high pressure in the atmosphere that forces hot air
downward and traps it near the ground.
14: A rain-bearing cloud that also produces lightning. All thunderstorms are
dangerous every thunderstorm produces lightning.
15: It is marked by a drop of average temperature well below the averages of a
region.
16.A prolonged dry period in the natural climate cycle that can occur anywhere in
the world.
17-18: 2 types of manmade calamities
19-20: 2 types of natural calamities
1 de 71

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CALAMITIES CHAPTER 4.pptx

  • 4. - An event causing great and often sudden damage or distress.
  • 7. FLOOD AN OVERFLOW OF WATER ONTO NORMALLY DRY LAND
  • 13.
  • 15. LANDSLIDE The movement of a mass of rock, debris, or earth down a slope.
  • 16.
  • 21. AN EARTHQUAKE IS A WEAK TO VIOLENT SHAKING OF THE GROUND PRODUCED BY THE SUDDEN MOVEMENT OF ROCK MATERIALS BELOW THE EARTH’S SURFACE.
  • 22. -Induced Earthquakes. Induced quakes are caused by human activity, like tunnel construction, filling reservoirs and implementing geothermal or fracking projects. - Volcanic Earthquakes. Volcanic quakes are associated with active volcanism. CAUSE S
  • 25. A tsunami is a series of extremely long waves caused by a large and sudden displacement of the ocean, usually the result of an earthquake below or near the ocean floor.
  • 27. In addition to loss of life and mass injuries, other potential impacts include damage to and destruction of homes and businesses, ports and harbors, cultural resources, utilities, and critical infrastructure and facilities. There may be loss of access to basic services such as power, sewer, and water. EFFECT S
  • 30. A violently rotating column of air touching the ground, usually attached to the base of a thunderstorm. Tornadoes are nature's most violent storms.
  • 31. CAUSES Large thunderstorm. Inside thunderclouds, warm, humid air rises, while cool air falls-along with rain or hail. These conditions can cause spinning air currents inside the cloud.
  • 32. EFFECT While the winds themselves are destructive, the debris they pick up is often quite dangerous as well. Most injuries and deaths caused by tornadoes are from collapsing buildings and flying debris. Tornadoes may produce strong, violent winds, lightening, heavy rains and flooding
  • 33. PREVENTION Go to the basement or an inside room without windows on the lowest floor (bathroom, closet, center hallway). If possible, avoid sheltering in any room with windows.
  • 35. A heat wave is simply a period of unusually hot weather that typically lasts two or more days.
  • 36. A heat wave occurs when there is high pressure in the atmosphere that forces hot air downward and traps it near the ground. CAUSES
  • 37. EFFECT Heatwaves can burden health andemergency services and also increase strain on water, energy and transportation resulting in power shortages or even blackouts. Food and livelihood security may also be strained if people lose their crops or livestock due to extreme heat.
  • 38. PREVENTION Installing cool and green roofs and cool pavement to reduce the urban heat island effect. Planting trees to provide shade and to cool the air through evapotranspiration. Pursuing energy efficiency to reduce demand on the electricity grid, especially during heat waves.
  • 40. a storm with thunder and lightning and typically also heavy rain or hail.
  • 41. •Thunderstorms form when warm, moist air rises into cold air. The warm air becomes cooler, which causes moisture, called water vapor, to form small water droplets - a process called condensation. The cooled air drops lower in the atmosphere, warms, and rises again. This circuit of rising and falling air is called a "convection cell". If this happens a small amount, a cloud will form. If this happens with large amounts of air and moisture, a thunderstorm can form CAUSE
  • 42. •Most indoor lightning casualties and some outdoor casualties are due to conduction. Whether inside or outside, anyone in contact with anything connected to metal wires, plumbing, or metal surfaces that extend outside is at risk. This includes anything that plugs into an electrical outlet, water faucets and showers, corded phones, and windows and doors. What causes lightning to strike a person?
  • 43. •Learn indoor and outdoor safety tips to protect yourself and your loved ones from lightning. How to protect yourself from lightning?
  • 44. INDOOR SAFETY TIPS •Avoid water. Don't touch electronic equipment. •Avoid windows, doors, porches, and concrete. •Don't use corded phones.
  • 45. OUTDOOR SAFETY TIPS •Be aware. •Go indoors. •Seek shelter immediately, even if caught out in the open. •Separate from others. •Avoid open spaces. •Don’t stay near tall structures.
  • 46. A thunderstorm can be even hazardous if accompanied by lightning, gusty winds, and heavy rain. It can affect humans, animals, public properties, and even nature •Impact on Humans: •Impact on Animals: •Impact on Properties: •Impact on Nature: EFFECT
  • 48. A cold wave is a weather event involving a cooling of the air, or the invasion of very cold air, over a large area.. It is marked by a drop of average temperature well below the averages of a region.
  • 49. •In the Northern Hemisphere, cold waves occur when very cold, dense air near the surface moves out of its source region in northern Canada or northern Asia. The core of a cold wave at the surface is a strong high-pressure center that forms during winter in high latitudes. WHAT ARE THE CAUSES OF HEAT AND COLD WAVE?
  • 50. •Cold waves can have negative impacts on people, crops, properties and services. •cause extreme thermal stress to human body, which may lead to devastating impacts on human health and well-being. •Cold waves can cause death and injury to livestock and wildlife EFFECT
  • 53. Is a prolonged dry period in the natural climate cycle that can occur anywhere in the world. It is a slow-onset disaster characterized by the lack of precipitation, resulting in a water shortage. Drought can have a serious impact on health, agriculture, economies, energy and the environment.
  • 55. A wildfire, forest fire, bushfire, wildland fire or rural fire is an unplanned, uncontrolled and unpredictable fire in an area of combustible vegetation.
  • 56. Wildfires can severely impact rural communities in a number of ways. Fires can significantly damage infrastructure- homes, barns, sheds, fencing – as well as farm equipment, vehicles, and structural damage to essential services such as electricity and water. WHY WILDFIRE IS A NATURAL DISASTER?
  • 58. The action of becoming intentionallyinvolved in a difficult situation, in order toimprove it and to survive in everyday living.
  • 60. There are many examples of human failure to use land resources sustainably. Deforestation occurs when humans clear forests to use the land either for agriculture or for habitation. Consequently, forest cover dwindles significantly, leading to soil erosion and extinction of plant species. Land animals also decline in numbers and even face extinction due to human expansion that encroaches on their natural habitat and limits their ability to spread geographically.
  • 62. One of the biggest environmental impacts of human activities is air quality. The transportation sector contributes heavily to air pollution because most forms of transportation, including cars, planes and ocean vessels, use fossil fuels. When burned, fossil fuels release carbon dioxide and other greenhouse gases into the environment. burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.
  • 64. Industry grows exponentially with the expansion of the human population.Manufacturing plants emit carbons and sulfurs that do not occur naturally in the environment, causing an imbalance in the quality and composition of air. Some air pollutants deplete the ozone layer and expose the Earth to dangerous radiation from the sun.
  • 66. Human intervention in the environment also jeopardizes the supply and flow of clean drinking water. Activities like waste disposal from residential, commercial and industrial areas, oil spills and runoff from agriculture all contaminate bodies of water. The direct deposit of pollutants into lakes, rivers, seas and streams and indirect runoff of hazardous substances during the rainy seasons both impact water sources. Another environmental issue impacting water systems is overfishing, which causes a reduction in diversity of marine life.
  • 67. Prevention in Human Intervention How can you prevent man-made disaster? Locating hazardous sites and materials away from centres of population. A safe environmental health structure, to ensure e.g. clean, uncontaminated drinking water. Pilot studies and the taking of independent environmental health advice before making potentially hazardous changes.
  • 68. Prevention in Human Intervention What can the government do to prevent man made and natural disasters? Awareness, education, preparedness, and prediction and warning systems can reduce the disruptive impacts of a natural disaster on communities. Mitigation measures such as adoption of zoning, land-use practices, and building codes are needed, however, to prevent or reduce actual damage from hazards.
  • 70. IDENTIFICATION 1-2: What are the two different kinds of calamities? 3.It is an event causing great and often sudden damage or distress 4-5 give me atleast 2 different types of landslide 6-9.4 types of flood 10. a weak to violent shaking of the ground produced by the sudden movement of rock materials below the earth’s surface. 11.a series of extremely long waves caused by a large and sudden displacement of the ocean
  • 71. 12.Nature’s most violent storms 13.It occurs when there is high pressure in the atmosphere that forces hot air downward and traps it near the ground. 14: A rain-bearing cloud that also produces lightning. All thunderstorms are dangerous every thunderstorm produces lightning. 15: It is marked by a drop of average temperature well below the averages of a region. 16.A prolonged dry period in the natural climate cycle that can occur anywhere in the world. 17-18: 2 types of manmade calamities 19-20: 2 types of natural calamities