Emergency management

'Mitigation' redirects here; for use of that term in criminal law, see extenuating circumstances.

Emergency management (or disaster management) is the discipline dealing with and avoiding risks. It is a discipline that involves preparing, supporting, and rebuilding society when natural or man-made disasters occur. Emergency management is the continuous process by which all individuals, groups, and communities manage hazards in an effort to avoid or ameliorate the impact of disasters resulting from the hazards. Actions taken depend in part on perceptions of risk of those exposed. Effective emergency management relies on thorough integration of emergency plans at all levels of government and non-government involvement. Activities at each level (individual, group, community) affect the other levels. It is common to place the responsibility for governmental emergency management with the institutions for civil defense or within the conventional structure of the emergency services. In the private sector, emergency management is commonly referred to as business continuity management.

Phases and professional activities

The process of emergency management involves four phases: mitigation, preparedness, response, and recovery.

Mitigation

File:Em cycle.jpg

A graphic representation of the four phases in emergency management.

Mitigation efforts attempt to prevent hazards from developing into disasters altogether, or to reduce the effects of disasters when they occur. The mitigation phase differs from the other phases because it focuses on long-term measures for reducing or eliminating risk. The implementation of mitigation strategies can be considered a part of the recovery process if applied after a disaster occurs. However, even if applied as part of recovery efforts, actions that reduce or eliminate risk over time are still considered mitigation efforts.

Mitigative measures can be structural or non-structural. Structural measures use technological solutions, like flood levees. Non-structural measures include legislation, land-use planning, and insurance e.g. the designation of nonessential land like parks to be used as flood zones. Mitigation is the most cost-efficient method for reducing the impact of hazards. However, mitigation is not always suitable and structural mitigation in particular may have adverse effects on the ecosystem.

A precursor activity to the mitigation is the identification of risks. Physical risk assessment refers to the process of identifying and evaluating hazards. In risk assessment, various hazards (e.g. earthquakes, floods, riots) within a certain area are identified. Each hazard poses a risk to the population within the area assessed. The hazard-specific risk ($R_{h}$) combines both the probability and the level of impact of a specific hazard. The equation below gives that the hazard times the populations' vulnerability to that hazard produce a risk. Catastrophe modeling tools are used to support the calculation. The higher the risk, the more urgent that the hazard specific vulnerabilities are targeted by mitigation and preparedness efforts. However, if there is no vulnerability there will be no risk, e.g. an earthquake occurring in a desert where nobody lives.

$\mathbf {R_{h}} =\mathbf {H} \times \mathbf {V_{h}} \,$

By:Chochon

Preparedness

In the preparedness phase, emergency managers develop plans of action for when the disaster strikes. Common preparedness measures include the proper maintenance and training of emergency services, the development and exercise of emergency population warning methods combined with emergency shelters and evacuation plans, the stockpiling, inventory, and maintenance of supplies and equipment, and the development and practice of multi-agency coordination. An efficient preparedness measure is an emergency operations center (EOC) combined with a practiced region-wide doctrine for managing emergencies. Another preparedness measure is to develop a volunteer response capability among civilian populations.

Response

The response phase includes the mobilization of the necessary emergency services and first responders in the disaster area, such as firefighters, police, volunteers, and non-governmental organizations (NGOs) such as Oxfam or the Caritas Network. A well rehearsed emergency plan developed as part of the preparedness phase enables efficient coordination of rescue efforts. Emergency plan rehearsal is essential to achieve optimal output with limited resources. In the response phase, medical assets will be used in accordance with the appropriate triage of the affected victims.

Where required, search and rescue efforts commence at an early stage. Depending on injuries sustained by the victim, outside temperature, and victim access to air and water, the vast majority of those affected by a disaster will die within 72 hours after impact.

Individuals are often compelled to volunteer directly after a disaster. Volunteers can be both a help and a hindrance to emergency management and other relief agencies. A spontaneous, unaffiliated volunteer is one type that can harm recovery efforts.

Recovery

The aim of the recovery phase is to restore the affected area to its previous state. It differs from the response phase in its focus; recovery efforts are concerned with issues and decisions that must be made after immediate needs are addressed. Recovery efforts are primarily concerned with actions that involve rebuilding destroyed property, re-employment, and the repair of other essential infrastructure. An important aspect of effective recovery efforts is taking advantage of a 'window of opportunity' for the implementation of mitigative measures that might otherwise be unpopular. Citizens of the affected area are more likely to accept more mitigative changes when a recent disaster is in fresh memory.

In the United States, the National Response Plan dictates how the resources provided by the Homeland Security Act of 2002 will be used in recovery efforts. It is the Federal government that often provides the most technical and financial assistance for recovery efforts in the United States.

Phases and personal activities

Mitigation

Non-structural personal mitigation is mainly about knowing and avoiding unnecessary risks. An example would be to avoid buying property that is exposed to hazards, e.g. in a flood plain, in areas of subsidence or landslides. Homeowners may not be aware of their home being exposed to a hazard until it strikes. Real-estate agents may not come forward with such information. However, specialists can be hired to conduct risk assessment surveys. Insurance covering the most prominent identified risks are a common measure.

Personal structural mitigation in earthquake prone areas include installation of an Earthquake Valve to instantly shut off the natural gas supply to your property, seismic retrofits of property and the securing of items inside the building to enhance household seismic safety such as the mounting of furniture, refrigerators, water heaters and breakables to the walls, and the addition of cabinet latches. In flood prone areas houses can be built on poles, like in much of southern Asia. In areas prone to prolonged electricity black-outs a generator would be an example of an optimal structural mitigation measure. The construction of storm cellars and fallout shelters are further examples of personal mitigative actions.

Preparedness

See also hurricane preparedness and earthquake preparedness

On the contrary to mitigation activities which are aimed at preventing a disaster from occurring, personal preparedness are targeted on preparing activities to be taken when a disaster occurs, i.e. planning. Preparedness measures can take many forms. Examples include the construction of shelters, warning devices, back-up life-line services (e.g. power, water, sewage), and rehearsing an evacuation plan. Two simple measures prepare you for either sitting out the event or evacuating. For evacuation, a disaster bag or knapsack should be prepared and for sheltering purposes a stockpile of supplies. For the specific hazard of hurricanes, National Oceanic and Atmospheric Administration (NOAA) recommends that the 'disaster bag' includes :

• a flashlight with spare batteries;
• a battery operated portable radio;
• a battery operated NOAA weather radio;
• first aid kit;
• prescription medicines;
• cash and a credit card;
• a cell phone with a fully charged spare battery;
• spare keys;
• A 3-day supply of water (one gallon per person per day);
• high energy non-perishable food;
• one blanket or sleeping bag per person;
• special items for infant, elderly or disabled family members;
• change of clothing.

Response

The response phase of an emergency may commence with a search and rescue phase. However in all cases the focus will be on fulfilling the basic needs of the affected population on a humanitarian basis. This assistance may be provided by national and/or international agencies and organisations. Effective coordination of disaster assistance is often crucial particularly when many organisations respond and local emergency management agency (LEMA) capacity may be over-stretched and diminished by the disaster itself.

On a personal level the response can take the shape either of a home confinement or an evacuation. In a home confinement scenario a family should be prepared to fend for themselves in their home for many days without any form of outside support. In an evacuation scenario, a family evacuates by an automobile (or other mode of transportation) with the maximum amount of supplies, including a tent for shelter. The scenario could also include equipment for evacuation on foot with at least three days of supplies and rain-tight bedding a tarpaulin and a bedroll of blankets is the minimum.

Recovery

The recovery phase starts when the immediate threat to human life has subsided. In the reconstruction it is recommended to reconsider the location or construction material of the property.

In long term disasters the most extreme home confinement scenarios like war, famine and severe epidemics last up to a year. In this situation the recovery will take place inside the home. Planners for these usually buy bulk foods and appropriate storage and preparation equipment, and eat the food as part of normal life. A simple balanced diet can be constructed from vitamin pills, whole-meal wheat, beans, dried milk, corn, and cooking oil. One should add vegetables, fruits, spices and meats, both prepared and fresh-gardened, when possible.

Profession

Emergency managers are generally trained through a combination of education, experience, and certificate courses. There are several professional organizations that provide certification, including the International Association of Emergency Managers (which offers the "Certified Emergency Manager" certification) and DRI International.

International organisations

Red Cross/Red Crescent

National Red Cross/Red Crescent societies often have pivotal roles in responding to emergencies. Additionally, the International Federation of Red Cross and Red Crescent Societies (IFRC, or "The Federation") may deploy assessment teams to the affected country.

United Nations

Within the United Nations system responsibility for emergency response rests with the Resident Coordinator within the affected country. However, in practice international response will be coordinated, if requested by the affected country's government, by the UN Office for the Coordination of Humanitarian Affairs (UN-OCHA), by deploying a UN Disaster Assessment and Coordination (UNDAC) team.

National organisations

United States

Under the Department of Homeland Security (DHS), the Federal Emergency Management Agency (FEMA) is lead agency for emergency management. The HAZUS software package developed by FEMA is central in the risk assessment process in the country. The United States and its territories are covered by one of ten regions for FEMA's emergency management purposes. Tribal, state, county and local governments develop emergency management programs/departments and operate hierarchially within each region. Emergencies are managed at the most-local level possible, utilizing mutual aid agreements with adjacent jurisdictions. If the emergency is terrorist related or if declared an "Incident of National Significance", the Secretary of Homeland Security will initiate the National Response Plan (NRP). Under this plan the involvement of federal resources will be made possible, integrating in with the local, county, state, or tribal entities. Management will continue to be handled at the lowest possible level utilizing the National Incident Management System (NIMS).

The Citizen Corps is an organization of volunteer service programs, administered locally and coordinated nationally by DHS, which seek to mitigate disaster and prepare the population for emergency response through public education, training, and outreach. Community Emergency Response Teams are a Citizen Corps program focused on disaster preparedness and teaching basic disaster response skills. These volunteer teams are utilized to provide emergency support when disaster overwhelms the conventional emergency services.

Canada

Public Safety and Emergency Preparedness Canada (PSEPC) is Canada's equivalent agency. Each province has an emergency management office and most local levels of government have similar offices. PSEPC also coordinates and supports the efforts of federal organizations ensuring national security and the safety of Canadians. They also work with other levels of government, first responders, community groups, the private sector (operators of critical infrastructure)and other nations.

PSEPC’s work is based on a wide range of policies and legislation. Through the Public Safety and Emergency Preparedness Act which defines the powers, duties and functions of PSEPC are outlined. Other acts are specific to fields such as corrections, emergency management, law enforcement, and national security.

New Zealand

In New Zealand the Ministry of Civil Defence and Emergency Management has statutory authority for controlling any state of emergency declared by central government. Local government bodies such as city and regional councils have their own emergency management agencies to control localised states of emergency, but these all defer to the MCDEM in the event of a national state of emergency. The Wellington Emergency Management Office utilize a building that has been purpose built with its own water, electricity, communications and sewerage facilities to ensure operations in the event of an emergency or disaster.

See also

• Hazard prevention
• First aid
• Risk:
  • Actuarial science
  • Extreme value theory
• Survivalism:
  • Air-raid shelter
  • Autonomous building
• Volunteer
• Countries
  • In France, Orsec's plan
    • Plan rouge, the french red plan;
    • Plan blanc, the french white plan;
  • In USA, Disaster Mitigation Act of 2000
  • Natural disasters in China

External links

• Ready.gov United States Department of Homeland Security
  • FEMA Emergency Management Related Training
• The French Emergency Preparedness Directorate
• Preparing For Emergencies - UK Government public information site
• UK Resilience news and information service for emergency practitioners (run by the Civil Contingencies Secretariat)
• Modeling Multi-Hazard Disaster Reduction Strategies with Computer-Aided Morphological Analysis From the Template:PDFlink
• International Federation of Red Cross and Red Crescent Societies
• MapAction - NGO producing maps in disaster emergencies
• ProVention Consortium
• Review: Disaster Management in India
• United Nations International Strategy for Disaster Reduction
• What the Development Programme of the United Nations (UN) does to reduce the human risks linked to Natural Disasters
• Pioneering Disaster Risk Index (DRI) Tool that provide key informations on all countries in the World, developed by the United Nations Development Programme (UNDP)
• Jamaica Office of Disaster Preparedness and Emergency Management
• Florida Division of Emergency Management
• The official Civil Defence site of São Paulo State - Brazil
• San Fransisco's Emergency Services Website
• O'Shea Emergency Reponse Services Website
• Managing Risk
• US-Homeland Emergency Response Organization
• www.EarthquakeValveSpecialists.com Automatic gas shut off devices - Santa Clara County