baejuhyeoned's version from 2016-12-13 20:03


Question Answer
Natural HazardsNatural phenomenon
Secondary hazardsConsequences of other hazards
Quasi-natural hazardHazard midway in between natural and man made hazards
Quasi-natural hazardWith human intervention
Technological HazardResult of human activities
Technological HazardMan-made hazards
KEY HAZARD PARAMETERSMeasuring and analyzing natural hazards
Magnitudemost important indicator.
MagnitudeMeasures the events strength and is an indication of how destructive it can be
Intensitymeasure the impact of disaster to human, structure, ground
Volcanic Explosivity Index (VEI)Measures relative explosiveness of eruption based on observation
Volcanic Explosivity Index (VEI)Volume of ejected materials and eruption column height
Volcanic Explosivity Index (VEI)Magnitude 8: highest
Richter ScaleDecive used to measure energy waves emitted by earthquakes
Speed of onsetIt refers to the length of time between the first appearance or warning of an event and its peak.
DurationIt refers to the period of time over which it occurs.
FrequencyIt refers to how often an event of a given magnitude may be expected to re-occur.
Return perioda recurrence interval of 10 years is to say it has in any year a 10% chance of occurring.
Areal extentThe area of natural hazards affect.
Areal reliabilityPredictability of an natural hazards occur in an given area.
Areal reliabilityPredictable and possible for planning.
Vulnerability“The degree of loss to a given element at risk or set of elements at risk resulting from the occurrence of a natural phenomenon of a given magnitude and expressed on a scale from 0 (no damage) to 1 (total damage)” ( UNDRO, 1991)
PeopleRatio of casualties or injured to the total population
BuildingsRepair cost or degree of damage
BuildingsProportion of damage buldings
CHARACTERIZING HAZARDSThis means that we have to understand each hazard in the context of its time and place
Hazard MappingProcess of identifying the spatial variation of hazard events or physical condition
Hazard MappingUseful in communicating vital information about the spatial variation of size and potential intensity of a particular hazard
GPS (Global Positioning System) Uses satellites to pinpoint position on Earth of relevant geologic materials, landforms and structures
GPS (Global Positioning System) Symbols and colors are used to represent diff. features
DEM (Digital Elevation Models)3D visualization air photographs of an area
DEM (Digital Elevation Models)Derived from high resolution satellite images
Scientific InvestigationExperts from various field
GIS (Geographic information system)Tool to display and analyze data related to positions on Earth surface
GIS (Geographic information system)lets us visualize, question, analyze, and interpret data to understand relationships, patterns, and trends.
GIS (Geographic information system)Powerful Hazard Mapping Tool
GIS (Geographic information system)computer-based tool that analyzes, stores, manipulates and visualizes geographic information on a map.
Geographic80% of government data collected is associated with some location in space
Informationattributes, or the characteristics (data), can be used to symbolize and provide further insight into a given location
Systema seamless operation linking the information to the geography – which requires hardware, networks, software, data, and operational procedures
VectorA series of x,y coordinates
VectorFor discrete data represented as points, lines, polygons
RasterGrid and cells
RasterFor continuous data such as elevation, slope, surfaces
John Snow and CholeraHe was a physician in 1850’s London
John Snow and CholeraIn 1849 he publishing an essay stating that diseases such as Black Death and cholera were not caused by bad air.
John Snow and CholeraIn 1854 he created a map that showed the relationship between cholera and the public sources of water in Soho England.
John Snow and CholeraAs a result, the local council deactivated the pump that was the source of cholera.


Question Answer
(1) Social, (2) Environmental, (3) Physical Elements Exposed to Various Hazards, (4) Economic 4 Dimensions of Exposure and Vulnerability
(1) Health, (2) Wellbeing, (3) Group, (4) DemographySocial Wide range of concerns:
(1) Natural, (2) Secondary, (3) Quasi-natural, (4) Technological4 Types of hazards
(1) Magnitude and intensity, (2) Speed of onset, (3) Duration, (4) Frequency, (5) Areal extent, (6) Areal reliability6 indicators to measure and analyze the extreme geophysical events that comprise natural hazards.
(1) identify possible hazards, (2) characterize hazard, (3) apply a rating (4) communicate results4 HAZARD ANALYSIS PROCESS
Consider two basic realities: (A) There is no place on the earth’s surface that is without hazard & (B) Almost any hazard can impact almost any place – fewer directly, more indirectlyIDENTIFYING HAZARDS
(1) Response history, (2) What has happened elsewhere, (3) Hazard survey, (4) Local disaster history, (5) Current scientific knowledge, (6) Environmental sensing6 FINDING HAZARDS
People & Buildings2 Vulnerability Measurement
Qualitative & QuantitativeTWO APPROACHES
Vector & RasterTwo fundamental types of data
(1) Industrial and High Potential Loss Facilities, (2) Essential Facilities, (3) Transportation Lifelines, (4) Utility LifelinesPhysical Elements Exposed to Various Hazards


Question Answer
QualitativeAssesses using fuzzy judgment
QualitativeCommunicates in broad categories
QuantitativeAssesses using defined criteria
QuantitativeCommunicates using numbers
QUALITATIVE ANALYSISDefine the levels and accumulate information
QUALITATIVE ANALYSISUses expert opinion in ranking in relative terms and develop consensus
QUALITATIVE ANALYSISPreferred when data is not enough to come up with quantitative evaluation
Qualitative analysisuse a scale of "Low, Medium, High" to indicate the likelihood of a risk event occurring.
Qualitative analysisdetermine if there are any specific types or categories of risks that would require special attention
Quantitative analysiswill determine the probability of each risk event occurring. For example, Risk #1 has an 80% chance of occurring, Risk #2 has a 27% chance of occurring, and so on.

S, E, E, P

Question Answer
EnvironmentalPhysical aspects of exposure and vulnerability
EnvironmentalLocation and built structure
EnvironmentalCombination of human settlement pattern s and environment
Transportation LifelinesHigh ways, bridges, railways and tunnels
Transportation LifelinesBus facilities
Transportation LifelinesPort and harbor facilities
Transportation LifelinesAirport and runway facilities
Utility LifelinesPortable water facilities, wastewater facilities, pipelines and distribution lines
Utility LifelinesOil and natural gas system facilities, pipelines and distribution lines
Utility LifelinesElectric power facilities
Utility LifelinesCommunication facilities
Economic Business interruptions
Economic Loss of jobs and access to work
Economic Loss of government income