UNDERSTANDING OF HAZARDS - vmc.gov.in · IV. ACCIDENT RELATED Hazards 1. Forest Fires 2. Urban...
Transcript of UNDERSTANDING OF HAZARDS - vmc.gov.in · IV. ACCIDENT RELATED Hazards 1. Forest Fires 2. Urban...
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UNDERSTANDING OF HAZARDS
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Comes in many forms
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From forces of nature
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Man as the direct cause
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Some are slow in onset
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Some are rapid in onset
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J. H. Gadhavi 7
Effect of Disaster
• Affects everyone
• Ensure poor remains poor
• Long term loss to children old age and weaker section
• Middle class losses their well being and becomes poor
• Small businessmen and professionals sustain great losses
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J. H. Gadhavi 8
Effect of Disaster
• Disaster impact occurs at verity of levels :
– Individual
– Family
– Community
– Country
– Global
– Environment
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J. H. Gadhavi 9
Effect of Disaster
• Material Losses ;
(Property, Infrastructure, Essential Services, Agriculture and Cattle)
• Human Losses;
(Death, Injury, Health, Displacement, Psychological, Trauma, Hardship and Disruption of Routine Life)
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J. H. Gadhavi 10
Effect of Disaster
• Environmental Losses;
(Biodiversity, Deforestation,
Hazardous material release)
• Social and Economical Losses;
(Weakening Institution and Social Structure, Reduction in employment and Production, Diversion of Funds etc.)
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Term Suggest that Earthquakes, Floods, Cyclones etc. are disasters
It is difficult to decide the disasters by its physical characteristics
Because;
What happens if, flooding or earthquake occurs in uninhabited area ?
or Landslide occurs in canyon?
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Then, what these events are(flood, cyclones, eq. etc)?
floods, cyclones, earthquakes, landslides
are potential events (called hazards) and,
existing condition of the area (called vulnerability)
meeting such events are
resulting in a disaster
Such events are known as hazards and,
such conditions are known as vulnerability
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J. H. Gadhavi 13
Components of Disaster ;
• HAZARD
• VULNERABILITY
• DISASTER
disaster = Hazard *Vulnerability
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Hazards
The word hazard might have come from French
word hasard which means a game of dice.
Clearly, the term is rooted in the concept of
chance.
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HAZARD
•A rare or extreme, natural or man made
Event that has the potential to cause harm or
loss to human activity, risk and danger to life or
damage to property.
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HAZARD
•Hazard is an event, While
disaster is its consequences/Final outcome.
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Hazards which are exclusively of natural
origin like EQ. Cyclone etc. are
natural hazards,
Manmade hazards are
associated with direct human action like
Industrial, Accidents, Explosions etc.
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For understanding the Disaster we have to understand the Hazard and its physical and technical aspects like:
Genesis,
Potential and its
• Life cycle
Traditional Knowledge, Science and , technology helps us to understand these hazards
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J. H. Gadhvi 19
• HPC appointed by GOI in 1999 identified 31 Disasters and categorized them in two major and five sub-groups
• Major Groups ; Natural Disasters
Manmade Disasters
Types of Hazards
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Natural Hazards
• Occurrence of infrequent hazard
• Impacts on; Vulnerable communities
Vulnerable Geographical areas
• Causing ; Substantial damage
Disruption
Causalities
• Leaving foot print on social structure
• Affected community unable to function normally
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Major Cause of Natural Hazards
Geographical location
Climatic condition
Population growth
Urbanization
Overexploitation of Natural resources
Settlements in endangered areas
Lack of
•knowledge and awareness
•Lack of financial resources
•lack of organizational capacity
21 J. H. Gadhvi
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Occurs all of a sudden
May have unforeseen consequences
High potential to damage
If terrorist attack
At unexpected places
Target is well chosen with area of high population
density, economic, political or religious importance
Man Made(Technological) Hazards
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J. H. Gadhvi 23
Sub Groups ;
Water and climate related
Geological
Chemical & Industry Related
Accident related
Biological
Types of Hazards
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24
What is water and climate related Hazards
Natural Processes
Atmospheric
Hydrographical
Oceanographic
Which causes
Loss of life or injury
Property damage
Social and economical disruption
Environmental degradation
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What is Geological Hazards?
Natural Earth Process
Internal Process (Earthquakes)
External Process (Landslides)
It can be ;
Single
Sequential
Combined in their origin and effects
May cause ;
Loss of life or injury
Property damage
Social and economical disruption
Environmental degradation
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J. H. Gadhvi 26
• HPC appointed by GOI in 1999 identified 31 Disasters and categorized them in two major and five sub-groups
• Major Groups ; Natural Disasters
Manmade Disasters
Types of Hazards
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27
Natural Hazards
• Occurrence of infrequent hazard
• Impacts on; Vulnerable communities
Vulnerable Geographical areas
• Causing ; Substantial damage
Disruption
Causalities
• Leaving foot print on social structure
• Affected community unable to function normally
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Major Cause of Natural Hazards
Geographical location
Climatic condition
Population growth
Urbanization
Overexploitation of Natural resources
Settlements in endangered areas
Lack of
•knowledge and awareness
•Lack of financial resources
•lack of organizational capacity
28 J. H. Gadhvi
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Occurs all of a sudden
May have unforeseen consequences
High potential to damage
If terrorist attack
At unexpected places
Target is well chosen with area of high population
density, economic, political or religious importance
Man Made(Technological) Hazards
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J. H. Gadhvi 30
Sub Groups ;
Water and climate related
Geological
Chemical & Industry Related
Accident related
Biological
Types of Hazards
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31
What is water and climate related Hazards
Natural Processes
Atmospheric
Hydrographical
Oceanographic
Which causes
Loss of life or injury
Property damage
Social and economical disruption
Environmental degradation
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32
What is Geological Hazards?
Natural Earth Process
Internal Process (Earthquakes)
External Process (Landslides)
It can be ;
Single
Sequential
Combined in their origin and effects
May cause ;
Loss of life or injury
Property damage
Social and economical disruption
Environmental degradation
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HazardsDENTIFIED BY High Powered Committee (HPC)
1. Floods 2. Cyclones 3. Tornadoes 4. Hailstorm 5. Cloud Burst 6. Heat Wave and Cold Wave 7. Snow Avalanches 8. Droughts 9. Sea Erosion 10. Thunder and Lightning
I. WATER AND CLIMATE RELATED Hazards
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1. Landslides and Mudflows 2. Earthquakes 3. Dam Failures/ Dam Bursts 4. Mine Fires 5. Tsunami (Added)
II. GEOLOGICALLY RELATED Hazards
III. CHEMICAL, INDUSTRIAL AND NUCLEAR
1. Chemical and Industrial Disasters 2. Nuclear Disasters
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IV. ACCIDENT RELATED Hazards 1. Forest Fires 2. Urban Fires 3. Mine Flooding 4. Oil Spill 5. Major Building Collapse 6. Serial Bomb Blasts 7. Festival related disasters 8. Electrical Disasters and Fires 9. Air, Road and Rail Accidents 10. Boat Capsizing 11. Village Fire
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1. Biological Disasters and Epidemics
2. Pest Attacks
3. Cattle Epidemics
4. Food Poisoning
V. BIOLOGICALLY RELATED Hazards
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Hazard and Vulnerability Profile of Gujarat
• Earthquake; Majority of Gujarat area is falling in zone 3-5
• Floods: Seven perennial major rivers of gujarat makes vulnerable to floods
• Drought: whole of Gujarat except south Gujarat region vulnerable to Drought.
• Cyclone: 1600 Kmtr. Costal area of Gujarat is vulnerable Cyclone and Floods
• Ind. Chem. Accident: Industrial Development has made Gujarat vulnerable to this Hazard. Major highways are vulnerable to Transport Accident of Chemicals leakages.
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