Natural Disaster

1: General

Floods usually occur as a result of inclement weather (e.g., storms, cyclones, tornadoes or thunderstorms, heavy or persistent rain), snowmelt and ice melt, or sudden leakage of water pockets. These events result in floods in the significant riverbeds or the accumulation of runoff, resurgence or melting in low areas on both sides of streams and downstream of rivers. In mountainous regions, land movements (earthquakes, landslides) and avalanches can lead to the overflow or rupture of hydraulic dams or cause unstable reservoirs in certain parts of the watercourse, thus threatening or destroying the population and the environment — infrastructure in the lower valleys.

Breaks or overflows of hydraulic dams, as well as seismic waves (tsunamis / tidal waves),  are individual cases requiring special protective measures.

Depending on the nature of the phenomena causing the floods, the damaging effects can be highly variable and affect entire regions or be limited to certain relatively small areas. Also, the impact will vary with the sudden and violent nature of the event, or because of the steady and relatively slow rise of the waters, which will flood a large area of ​​the territory, especially in the plains bordering the rivers and their mouths.

The danger is logically the highest in mountainous areas or valleys with steep slopes, where depressions will be entirely razed or momentarily drowned, then covered with thrusting materials (rocks, sand, gravel, etc.); this will result in the destruction or stagnation of all or part of the dwellings, economic infrastructure and vital installations (energy network, transmissions, and drinking water). The same is true of torrential rains (thunderstorms) in arid regions and deserts, where water can not infiltrate the impervious soil and flow on the surface, depending on the relief, destroying dwellings and localities over very great distances.

But all types of floods will regularly have dire consequences because of the side effects in particular. A very localized or relatively low water level flood can cause widespread damage, especially the interruption or destruction of communication routes (roads, railways, etc.) or loss of infrastructure and the environment (economy, supply, crops, etc.).

2: Prevention and precautionary measures

Unlike other natural phenomena (ground movements) or at the origin of some floods (lousy weather, tsunamis), the risks of river floods are predictable in their intensity, but it is difficult to know the moment when they will occur. It is, therefore, possible to determine the territories threatened by the flood. This rule also applies to hydraulic dams, the consequences of which may be calculated by considering the volume of water retained, the slope and the topography of the valley, as well as Absorption capacity of downstream streams.

Long-term prevention and precautionary measures will focus on the management of endangered areas through the enactment of legislation requiring the systematic assessment of potential natural hazards and then taking them into account when delineating building sectors and during the granting of building permits. These preventive measures will be supplemented by an obligation to afforest and maintain forests and vegetation, as well as by the development of rivers at high altitudes. To this end, we can only recommend the establishment of a National Hydrological and Geological Institute to study these problems and to coordinate preventive measures in this field.

At the community level, the general preventive measures can be summarized as follows:

  • Permanent observation of the risk of flooding (establishment of a network for measuring the concentration of watercourses);
  • Organization of one or more water information and alarm centers for the population, particularly about high capacity hydraulic dams;
  • Determination of prohibitions to build, stay or circulate in endangered areas and implementation of specific protection systems (e.g., warning signs);
  • Construction of buildings and developments designed to prevent or limit floods and protect the population;
  • Planning of the evacuation of the people possibly threatened and information on the rules of behavior in case of the tide;
  • Establishment of well-equipped and educated management bodies and intervention means;
  • Preventive reduction of the water reservoirs of the hydraulic dams and increase of the flow of the watercourses (locks).

3: Response And Rescue Measures

As soon as a significant flood hazard is identified, after assessing the seriousness of the situation and the causes of the event, local, regional or national authorities decide on protective measures dictated by the probable evolution. It is up to them to implement the planned precautionary or protective measures, in particular: alert and alarm service, closure of the threatened sector, information of the population on the behavior to be held, possibly order the evacuation of all or residents, domestic animals and cultural property and values ​​outside the potential flood zone.

The management of protection, search, rescue and assistance measures (supplies, medical relief, evacuation) is the responsibility of the political authorities and their governing bodies that ensure the coordinated engagement of civilian and military response capabilities. Whenever possible, the collaboration will be sought with business security officials, rescue organizations in neighboring municipalities and cross-border emergency and relief teams.

If the national means prove to be insufficient, in particular as regards the protection of the environment (oil pollution or toxic products), the government of the affected state can appeal for international emergency aid by contacting the United Nations Department of Humanitarian Aid (UNDHA).…

Natural Disaster

Is Your Family Ready?

In the event of a disaster in your area, rescue services may take some time to lend a hand. You should be ready, you and your family, to cope with the first 72 hours of an emergency.

Learn today how quick and easy it is to prepare for a variety of emergencies, no matter when or where. Use this guide to make your emergency plan and use our checklist to create an emergency kit for the first 72 hours. The necessary measures presented will help you take care of yourself and your loved ones in case of emergency.

Step 1. Know The Risks

Although the consequences of different disasters may be similar, you can better prepare yourself if you know the risks specific to your area. Across the country, Canadians face a variety of hazards, counting seismic tremors in British Columbia, snowstorms in Nunavut, and tornadoes in Ontario. Notwithstanding cataclysmic events, there are different sorts of dangers, for example, control blackouts and mechanical or transport mishaps.

Some of the risks listed below may occur in your community. It may be helpful to determine which risks are most likely to happen in your area.

Step 2. Prepare A Plan

All homes need an emergency plan. This plan will help you and your family take appropriate action in case of an emergency. You will have to spent about 20 minutes to do your project.

Your family members may not be in the same place when an emergency occurs. Plan a way to meet or communicate with each other and discuss what you would do in different situations.

Use the following pages to prepare your plan. You already know a good deal of the information requested. However, it may be necessary to contact your municipality and your province or territory to obtain some information about their emergency plans. A list of emergency management organizations is available at the end of this guide.

Keep the guide in a place that is easy to find and remember (with your emergency kit, for example). You could also make copies of the plan and keep them in our vehicle and at your place of work. If you completed your program online, save an electronic version on your computer.

Neighborhood Security Plan

Get along with your neighbors so that everyone in the neighborhood is taken care of. Make “twinnings” to ensure that no one is left behind.

Register a reminder to update your emergency plan in one year.

By the same date next year, review the contact information, apply your emergency evacuation plans, change the smoke indicator and carbon monoxide locator batteries and recharge your unit. Change the batteries, nourishment, and water in your survival kits once per year.

Prepare a floor plan of your home showing all possible exits from each room: plan for the main door and another exit for each room. If you live in an apartment, plan not to use the elevator. If stairs can’t be used, inform emergency personnel in advance. Also, also expect at least one route to leave your neighborhood in case you need to move quickly (think of more than one option).…

Natural Disaster

What Precautions Before Departure?

It is essential to keep in mind that not all foreign countries have our level of civil protection. It is, therefore, necessary to learn about what to do in the event of a natural disaster, as well as the warning signs to react to.

Before your departure, it may be useful to collect information on the weather conditions of your destination; storms may be regular in some countries. Depending on the data received, you may decide to continue or change your trip or itinerary.

It will also be necessary, before leaving, to transmit the details of your travel plan (itinerary, hotels, cities of destination, contact details …) to your entourage so that he can reach you and locate you in case of disaster.

What To Do On The Spot In Case Of Natural Disaster?

If an earthquake were felt during your trip abroad, for example, it would primarily choose a hotel “hard” and low or low floors.

If it occurs during excursions, it will be necessary to quickly locate a place without building like a place or a stadium to take refuge there. If you are in a house, it will be best to rush under the stairs: they resist better than the rest of the building. Finally, it will be essential to have with you a small survival backpack with water and a blanket. This one must be able to be carried away in less than thirty seconds.

Finally, if the situation worsens, it will be necessary to consider going to a neighboring region without danger or leaving the country.

What Support Abroad?

For any request for medical care or repatriation and taking into account the events and the coordination carried out by the public authorities, you will first have to get closer to the local authorities if you are on the French territory (gendarmerie, police forces). Police, etc.) or your consulate or embassy if you are abroad.


January 2019