malaysia: floods walter hays, global alliance for disaster reduction, vienna, virginia, usa walter...
DESCRIPTION
MALAYSIA Population: 23,522,482 Area: 329,750 km 2 Coastline: 4675 km GDP: $207.8 billion GDP Per Capita: $9,000TRANSCRIPT
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MALAYSIA: FLOODS
Walter Hays, Global Alliance for Walter Hays, Global Alliance for Disaster Reduction, Vienna, Virginia, Disaster Reduction, Vienna, Virginia,
USA USA
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MALAYSIA: KUALA LUMPUR IS THE FEDERAL CAPITAL
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MALAYSIA
• Population: 23,522,482 • Area: 329,750 km2 • Coastline: 4675 km • GDP: $207.8 billion • GDP Per Capita: $9,000
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WESTERN MALAYSIA, WHERE KUALA LAMPUR IS LOCATED, IS AT GREATER
RISK FROM NATURAL HAZARDS THAN EASTERN
MALAYSIA
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KUALA LUMPUR
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KUALA LUMPUR AND PUTRAJAVA
• Kuala Lumpur is the cultural, financial, and economic center of Malaysia, and also the seat of Malaysia’s Parliament and the official residence of the King.
• Putrajava is the location of the executive and judicial branches of the federal government, which were relocated from Kuala Lumpur in 1999.
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KUALA LUMPUR• The city covers an area of 243 km2
(94 sq mi) and had an estimated population of 1.6 million in 2010.
• Greater Kuala Lumpur, also known as the Klang Valley, was an urban agglomeration of 6.9 million in 2010 and one of the fastest growing metropolitan regions in Malaysia.
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Floods and landslides from cyclones are the primary hazards
affecting Malaysia. Effects from earthquakes and volcanic eruptions are usually
from distant sources. Droughts also occur.
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MALAYSIA’S PRIMARY NATURAL HAZARDS
• CYCLONES• FLOODS
(especially during cyclone season)
• LANDSLIDES (TRIGGERED BY TOO MUCH RAIN OR EARTHQUAKE GROUND SHAKING )
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WIND AND WATER PENETRATE BUILDING ENVELOPE
CYCLONES
UPLIFT OF ROOF SYSTEM
FLYING DEBRIS PENETRATES WINDOWS
STORM SURGE
HEAVY PRECIPITATION IN A SHORT TIME
FLASH FLOODING (MUDFLOWS)
LANDSLIDES (MUDFLOWS)
CAUSES OF RISK
GLOBALDISASTER
LABORATORIES
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LOSS OF FUNCTION OF STRUCTURES IN FLOODPLAIN
FLOODS
INUNDATION
INTERACTION WITH HAZARDOUS MATERIALS
STRUCTURAL/CONTENTS DAMAGE FROM WATER
WATER BORNE DISEASES (HEALTH PROBLEMS)
EROSION AND MUDFLOWS
CONTAMINATION OF GROUND WATER
CAUSES OF RISK
FLOOD DISASTER LABORATORIES
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SITING AND BUILDING ON UNSTABLE SLOPES
LANDSLIDES
SOIL AND ROCK SUCEPTIBLE TO FALLS
SOIL AND ROCK SUCEPTIBLE TO TOPPLES
SOIL AND ROCK SUCEPTIBLE TO LATERAL SPREADS
SOIL AND ROCK SUSCEPTIBLE TO FLOWS
PRECIPITATION THAT TRIGGERS SLOPE FAILURE SHAKINGGROUND SHAKING THAT
TRIGGERS SLOPE FAILURE
CAUSES OF DAMAGE
GLOBAL DISASTER LABORATORIES
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MALAYSIA: FLOODING IN 2014
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MALAYSIA: FLOODING IN 2014
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MALAYSIA: FLOODING IN 2014
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TOWARDS DISASTER RESILIENCE
IN MALAYSIA A Paradigm Shift
From Disaster Proneness Will Improve the Quality of Life in Malaysia
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CONTINUATION OF THE STATUS QUO WHEN MALAYSIA IS AT RISK
AND DISASTER PRONE - - -
Will result in new and more complex HEALTH PROBLEMS
WILL result in unnecessary DEATHS AND INJURIES
WILL result in longer and more costly RECOVERY and RECONSTRUCTION
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TOWARDS FLOOD RISK ASSESSMENT
AND RISK REDUCTION
Officials: We have to stop flood disasters from happening again
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GOAL: MINIMIZE THE “DOMINO EFECTS” OF THE NEXT DISASTER
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PHYSICALPHYSICAL
EFFECTSEFFECTS
ELEMENTS OF RISKELEMENTS OF RISK
EXPOSUREEXPOSURE
VULNERABILITYVULNERABILITY LOCATIONLOCATION
RISKRISK
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PHYSICAL EFFECTS OF FLOODS
INUNDATION, HIGH-VELOCITY FLOW, HIGH-VOLUME DISCHARGE, EROSION, AND SCOUR
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DAMAGE FROM DAMAGE FROM INUNCATIONINUNCATION
AN ASSESSMENT INTEGRATES PHYSICAL EFFECTS AN ASSESSMENT INTEGRATES PHYSICAL EFFECTS AND SOCIETAL IMPACTS TO DETERMINE RISKAND SOCIETAL IMPACTS TO DETERMINE RISK
EROSION, SCOUR, AND EROSION, SCOUR, AND LANDSLIDESLANDSLIDES
LOSS OF LOSS OF FUNCTIONFUNCTION ECONOMIC LOSSECONOMIC LOSS
RISKRISK
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TYPICAL IMPACTS OF FLOODS
DAMAGE TO CONTENTS, LOSS OF FUNCTION OF BUILDINGS AND
INFRASTRUCTURE, RELEASE OF HAZARDOUS MATERIALS,
TRANSPORTATION OF DEBRIS, AUTOS, AND HOUSES, ENVIRONMENTAL DEAD ZONES,
AND DISEASE VECTORS
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VULNERABILITY ASSESSMENT FOR
FLOODS
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Vulnerability: A Vital Part of Risk AssessmentVulnerability: A Vital Part of Risk Assessment
FLOOD FLOOD HAZARDSHAZARDS
EVENTEVENT
VULNERABILITYVULNERABILITY
PEOPLESTRUCTURESPROPERTYENVIRONMENTINFRASTRUCTURE
EXPOSUREEXPOSURE
EXPECTED EXPECTED LOSSLOSS
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WHAT INCREASES VULNERABILITY
MANKIND’S ACTIONS AND NATURAL EVENTS CAN CHANGE THE
VULNERABILITY OF ELEMENTS AT RISK TO FLOODS
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An element’s vulnerability (fragility) is the result of a
community’s actions or nature’s actions that change some part of
the regional water cycle (e.g., precipitation, storage, runoff, transpiration, evaporation).
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MANKIND’S CONTRIBUTION
An element’s vulnerability (fragility) is the result of flaws that enter during the planning, siting, design, and construction
of a community’s buildings and infrastructure.
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ACTIONS THAT CAN CHANGE KEY PARTS OF THE WATER CYCLE
• Urban development or industrial development in areas that were formerly wetlands.
• Locating buildings and infrastructure in a river floodplain.
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MANKIND’S ACTIONS THAT CHANGE SOME PART OF THE WATER CYCLE
• Actions that increase or decrease river gradients (deforestation, dams, etc).
• Actions that change the runoff pattern or rate (e.g., the city’s concrete footprint)
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NATURE’S ACTIONS THAT CAN CHANGE THE NORMAL WATER CYCLE
• A flash flood.• Ice jams/ice dams on the river• Rapid melt of snow and ice• Extreme or prolonged
precipitation caused by stalled low-pressure systems.
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LOSS OF FUNCTION OF STRUCTURES IN FLOODPLAIN
FLOODS
INUNDATION
INTERACTION WITH HAZARDOUS MATERIALS
STRUCTURE & CONTENTS: DAMAGE FROM WATER
WATER BORNE DISEASES (HEALTH PROBLEMS)
EROSION AND MUDFLOWS
CONTAMINATION OF GROUND WATER
CAUSES OF RISK
DISASTER LABORATORIES
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A RISK ASSESSMENT
• A risk assessment involves the probabilistic integration of:
• The hazard (e.g., floods) and their potential disaster agents (inundation, erosion, etc) that are directly related to the location of the community and what happens in the regional water cycle.
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RISK ASSESSMENT (Continued)
• The location of each element of the exposure in relation to the physical demands of the hazard (i.e., inundation, etc.)
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RISK ASSESSMENT (Continued)
• The exposure (e.g., people, and elements of the community’s built environment), represents the potential loss when the natural hazard occurs.
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RISK ASSESSMENT (Continued)
• The vulnerability (or fragility) of each element comprising the exposure when subjected to the potential disaster agents.
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POLICY POLICY ADOPTIONADOPTION
RISK ASSESSMENT
• VULNERABILITYVULNERABILITY
• EXPOSUREEXPOSURE
• EVENTEVENT
POLICY ASSESSMENT
• COSTCOST
• BENEFITBENEFIT
•CONSEQUENCESCONSEQUENCES
FLOOD RISK ASSESSMENT LEADS TO FLOOD RISK ASSESSMENT LEADS TO DISASTER-RISK REDUCTIONDISASTER-RISK REDUCTION
FLOODSFLOODS EXPECTED EXPECTED LOSSLOSS
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REQUIRED INFORMATION
• Physical characteristics of the regional drainage system.
• Physical characteristics of each river system and its floodplain.
• Physical characteristics of the regional water cycle.
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REQUIRED INFORMATION
• Physical characteristics of catchment basins, reservoirs, and wetlands in the region.
• Physical characteristics of dikes, levees, and dams controlling water discharge and flooding in the region.
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REQUIRED INFORMATION
• The hazardous materials located in the floodplain.
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DISASTER-RISK REDUCTION POLICES FOR FLOODS
MITIGATION, PREVENTION, PREPAREDNESS, FORECASTS AND
WARNING, EVACUATION, EMERGENCY RESPONSE, RECOVERY AND
RECONSTRUCTION, AND EDUCATIONAL SURGES
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MITIGATION
SANDBAGS, ELEVATED BUILDINGS, ETC
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PREVENTIONDAMS, STORM BARRIERS, LEVEES, SPILLWAYS, CATCHMENT BASINS,
RESERVOIRS, WETLANDS, ETC
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MALAYSIA’S SECONDARY NATURAL HAZARDS
• EARTHQUAKES and VOLCANIC ERUPTIONS (usually from sources outside the country; i.e., Indonesia, not inside)
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INADEQUATE RESISTANCE TO HORIZONTAL GROUND SHAKING
EARTHQUAKES
SOIL AMPLIFICATION
PERMANENT DISPLACEMENT (SURFACE FAULTING & GROUND
FAILURE)
IRREGULARITIES IN ELEVATION AND PLAN
FIRE FOLLOWING RUPTURE OF UTILITIES
LACK OF DETAILING AND CONSTRUCTION MATERIALS
INATTENTION TO NON-STRUCTURAL ELEMENTS
CAUSES OF DAMAGE
GLOBAL “DISASTER
LABORATORIES”
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LATERAL BLAST
VOLCANICERUPTIONS
PYROCLASTIC FLOWS
FLYING DEBRIS
VOLCANIC ASH
LAVA FLOWS
LAHARS
TOXIC GASES
CAUSES OF RISK
DISASTER LABORATORIES
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A PARADIGM SHIFT TOWARDS DISASTER RESILIENCE IN
MALAYSIA - - -
Will result in fewer and less complex HEALTH PROBLEMSWILL result in fewer
DEATHS AND INJURIESWILL result in shorter and less costly RECOVERY and RECONSTRUCTION
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A PARADIGM SHIFT FROM DISASTER PRONENESS TOWARDS DISASTER
RESILIENCE IS
A THREE STEP PROCESS
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TOWARDS DISASTER RESILIENCE IN MALAYSIA
• Step 1: Integrate Past Experiences Into Books of Knowledge
• Step 2: From Books of Knowledge to Innovative Educational Surges to Build Professional and Technical Capacity
• Step 3: From Professional and Technical Capacity to National Disaster Resilience
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Step 1: Integrate Past Experiences Into Books of
Knowledge NOTE: A book of Knowledge is
everything we know or think we know about Malaysia’s risk-causing
hazards
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BOOK OFBOOK OF
KNOWLEDGE
KNOWLEDGE
- Perspectives
- Perspectives
On Science, Policy,
On Science, Policy, And Change
And Change
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BOOKS OF KNOWLEDGE
Are “TOOLS” to facilitate a commitment by Malaysia to minimize
the likely impacts of the inevitable future cyclones, floods, landslides
earthquakes, volcanic eruptions, and droughts, thereby anticipating and
preventing disasters
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WHAT DO WE KNOW?
• Disaster resilience has become an urgent global goal in the 21st century as many Nations are experiencing disasters after a natural hazard strikes, and learning that their communities, institutions, and people do NOT yet have the capacity to be disaster resilient.
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Step 2: From Books of Knowledge to Innovative
Educational Surges to Build Professional and Technical
Capacity in Malaysia to Minimize Likely Impacts in the
Next Disaster
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NOTE: Step 2 is a task for a Nation’s “Academies of Science, Engineering and Medicine,” its
educational institutions at all levels, and its electronic and
print media that provide public information
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WHAT DO WE KNOW?
• Disaster resilience does not just happen; it is the result of decision-making for a national paradigm shift from the status quo to an improved “coping capacity” that enables the country to recover quickly after a disaster.
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Step 3: From Professional and Technical Capacity to Science-based Decision-making for a
Paradigm Shift from the status quo to Disaster Resilience in
India
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NOTE: Step 3 is a task for Malaysia’s “decision-makers,”
(i.e., its political leaders, stakeholders, and leading
professionals) who have a basis for deciding on the nature and scope of a
national paradigm shift
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LIVING WITH NATURAL HAZARDSLIVING WITH NATURAL HAZARDS
INCREASED DEMANDS INCREASED DEMANDS ON COMMUNITYON COMMUNITY
A DISASTER:A DISASTER:
INSUFFICIENT INSUFFICIENT CAPABILITIES OF CAPABILITIES OF
COMMUNITYCOMMUNITY
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LIVING WITH NATURAL HAZARDSLIVING WITH NATURAL HAZARDS
DEMANDS ON DEMANDS ON COMMUNITYCOMMUNITY
MINIMIZE IMPACTS OF FUTURE MINIMIZE IMPACTS OF FUTURE OCCURRENCES:OCCURRENCES:
CAPABILITIES OF CAPABILITIES OF COMMUNITYCOMMUNITY
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MALAYSIA’SMALAYSIA’S
COMMUNITIESCOMMUNITIESDATA BASES DATA BASES AND INFORMATIONAND INFORMATION
HAZARDS: GROUND SHAKING GROUND FAILURE SURFACE FAULTING TECTONIC DEFORMATION TSUNAMI RUN UP AFTERSHOCKS
•NATURAL HAZARDS MAPS•INVENTORY•VULNERABILITY•LOCATION
RISK ASSESSMENTRISK ASSESSMENT
RISK
ACCEPTABLE RISK
UNACCEPTABLE RISK
A PARADIGM SHIFTA PARADIGM SHIFT IN MALAYSIAIN MALAYSIA
•PREPAREDNESS•PROTECTION/PREVENTION•EARLY WARNING•EMERGENCY RESPONSE•RECOVERY/RECONSTRUCT.
POLICY OPTIONSPOLICY OPTIONS