A serious disruption of the functioning of a community or a society involving widespread human, material, economic, or environmental losses and impacts which exceeds the ability of the affected community or society to cope using its own resources
Disaster
A result of the combination of: the exposure to a hazard; the conditions of vulnerability that are present; and insufficient capacity or measures to reduce or cope with the potential negative consequences
Risk
The combination of the probability of an event and its negative consequences
Risk
The degree to which humans cannot cope (lack of capacity) with a situation
Disaster Risk
The potential (not actual and realized) disaster losses, in lives, health status, livelihoods, assets, and services which could occur in a community or society over some specified future time period
Disaster Risk
The product of the possible damage caused by a hazard due to the vulnerability within a community
Disaster Risk
The combination of the severity and frequency of a hazard, the numbers of people and assets exposed to the hazard, and their vulnerability to damage
Classifications of Disaster
Natural
Man-Made
Technological/Industrial
Terrorism/Violence
Complex Humanitarian Emergencies
Disaster Risk Elements
Exposure - elements at risk from a hazard event
Hazard - potentially damaging physical event, phenomenon or human activity that may cause loss of life or injury, property damage, social and economic disruption or environmental degradation
Vulnerability - the condition determined by physical, social, economic environmental factors or processes, which increase the susceptibility of a community to the impact of hazard
Reduction of the level of vulnerability and exposure is possible by keeping people and property as distant as possible from hazards. We cannot prevent natural events from occurring so we should focus on addressing the reduction of vulnerability and exposure by identifying the factors which underlie disasters.
Risk Factors
Severity of Exposure
Gender & Family
Age
Economic Status of Country
Climate Change
Increase disaster risk by altering the frequency and intensity of hazards events, affecting vulnerability to hazards, and changing exposure patterns
Climate Change
The change that can be attributed "directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparable time periods
Environmental Degradation
Changes to the environment can influence the frequency and intensity of hazards, as well as our exposure and vulnerability to these hazards
Globalized Economic Development
Increased polarization between the rich and poor on a global scale, increasing the exposure of assets in hazard prone areas, providing an opportunity to build resilience if effectively managed
Poverty and Inequality
Impoverished people are more likely to live in hazard-exposed areas and are less able to invest in risk-reducing measures, poverty is both a cause and consequence of disaster risk
Poorly Planned and Managed Urban Development
The growing rate of urbanization and the increase in population density (in cities) can lead to creation of risk, especially when urbanization is rapid, poorly planned and occurring in a context of widespread poverty
Weak Governance
Disaster risk is disproportionately concentrated in lower-income countries with weak governance, disaster risk governance refers to the specific arrangements that societies put in place to manage their disaster risk within a broader context of risk governance
Physical Perspective
Calamities are phenomena that cause great physical damage in a community infrastructure, its people and their properties, e.g. houses and environmental sources of living. These cited effects of a disaster can be easily measured and the most common.
Public sector actors are unable or unwilling to assume their roles and responsibilities in protecting rights, providing basic services and public services
Disaster risk is disproportionately concentrated in lower-income countries with weak governance
Disaster risk governance
The specific arrangements that societies put in place to manage their disaster risk within a broader context of risk governance
This reflects how risk is valued against a backdrop of broader social and economic concerns
Physical disasters
Calamities that cause great physical damage in a community infrastructure, its people and their properties
Natural disasters generally affect the physical infrastructural facilities, agricultural productivity and even lead to loss of life and cause damage to property
Various factors influence the effects of a disaster on a country among them are the magnitude of the disaster, the geography of the area affected, and the recovery efforts directed towards reducing the immediate effects of a disaster
Effects of physical disasters
Injuries
Physical disabilities or illness
Sanitation
Damage in infrastructure
Psychological effects of disasters
Victims may suffer from Post Traumatic Stress Disorder (PTSD) and other serious mental health conditions
Disasters are mostly unpredictable, which leave the victims in a state of shock
Death of a closed one leaves the victim in a state of insecurity because the sense of love, attachment and belongingness are deprived
Psychological effects of a disaster
Distress
Hopelessness
Intrusion/avoidance
Emotional effects
Hatred/revenge
Cognitive Effects
Dependence/insecurities
Physical Effects
Grief/withdrawn/isolation
Interpersonal effect
Guilt feeling
Helplessness
Lack of trust
Socio-cultural characteristics of Filipinos
Matiisin, resourceful, helpful, optimistic, and prayerful
Culture of "malalampasan din natin 'to.." belief and "bahala na ang Diyos" syndrome gives hope
Socio-cultural effects of disasters
Change in individual roles
Disruption of social relationships and personal connections
Economic effects of disasters
Reduce local and international trade
Partially or totally paralyze a country's transportation system
Implementation of a partial and total shut down of local business operations result to a lot of people losing means of living
Economic effects of disasters
Loss of life
Unemployment
Loss of property
Loss of household articles
Loss of crops
Loss of public infrastructure
Political effects of disasters
Natural disasters are commonly thought to be less politically argumentative than armed conflicts, yet a closer look shows that both the effects of a natural disaster and the resulting distribution of humanitarian aid are profoundly linked to politics
Vulnerability to disasters is mediated by the political system of a country, and disasters can have major consequences for political stability and political legitimacy
Biological disasters
The disturbing effects caused by a prevalent kind of disease or virus in an epidemic or pandemic level
Biological disasters can wipe out an entire population at a short span of time
Viral respiratory infections can lead to anything from a mild cough that lasts a few weeks or months to full-blown persistent wheezing or asthma
Effects of biological disasters
Loss of lives
Public demobilization
Negative economic effect
Unemployment
Hunger
Earthquake
The vibration of Earth produced by the rapid release of energy within the lithosphere
Caused by slippage along a break in the lithosphere, called a fault
Energy released by an earthquake travels in all directions from the focus in the form of seismic waves
Movement that occurs along faults during earthquakes is a major factor in changing Earth's surface
Forces inside Earth slowly deform the rock that makes up Earth's crust, causing rock to bend
Elastic rebound is the tendency for the deformed rock along a fault to spring back after an earthquake
An aftershock is an earthquake that occurs sometime soon after a major earthquake
A seismograph is a device used to record the motion of the ground during an earthquake
Magnitude
Measures the energy released at the source of the earthquake
Intensity
Measures the strength of shaking in a certain location, determined from effects on people, human structures, and natural environment
Earthquakes that are small in magnitude and far from urban areas were barely felt, but are recorded in seismographs
Earthquakes that are shallow and near urban areas can be greatly felt even if they are weak
Primary earthquake effects
Permanent features an earthquake can bring out, such as fault scarps, surface ruptures, and offsets of natural or human-constructed objects