Report Natural Hazards Switzerland

Switzerland has a progressive approach to protection against natural hazards, to which it is particularly exposed as an alpine and densely populated country. 1.8 million people still live in flood-prone areas. 1.7 million jobs and CHF 840 billion in material assets are located in such hazard zones. In addition, new challenges are foreseeable in the near future, for which Switzerland must prepare itself: The ever warmer climate and the resulting heavier and more frequent precipitation, as well as settlement development and increasingly expensive infrastructure (e.g. transport routes), increase the risks of damage from natural events such as floods. The report on natural hazards in Switzerland therefore sets out various packages of measures to ensure Switzerland's safety and economic development in the future.

Prevention is in the foreground

The measures are aimed at using the available resources as effectively and economically as possible for prevention. The aim is to protect the population, the economy and the environment from the consequences of natural events and to keep public expenditure within reasonable limits. Central to this is comprehensive risk management - the earlier large-scale risks are identified and prevented, the more cost-effective the measures and the more thoroughly they can be planned. Part of this planning is a forward-looking strategy for adapting to climate change. It is worth investing in protection against natural hazards in the future and keeping existing protective structures such as dams intact in the long term.

Update hazard maps

According to the package of measures for natural hazards in Switzerland, the existing bases such as hazard maps must be updated and taken into account in spatial planning throughout the country. New phenomena such as surface runoff, i.e. flooding from surfaces such as fields or roads, must also be recorded on maps. In the building industry, uniform standards should also apply to construction that is suitable for natural hazards. In this way, safety can be improved with relatively little effort and a further increase in risks can be prevented. This applies in particular to the natural hazard of earthquakes.

A permanent task for society as a whole

Protection against natural hazards remains a joint task of the Confederation, cantons and communes. Insurance companies, professional associations, teaching and research are also included in this alliance, as is the general public. The aim is to make them even more aware of the issue and their own options for action. Protection against floods, rockfalls and other natural hazards is a permanent task. On the one hand, existing protective structures, such as those on the Rhône or the Alpine Rhine, must be renewed so that they retain their protective function. On the other hand, the changed hazard situation resulting from climate change and social and economic development must be taken into account. In order to remedy the deficiencies identified and to make the best possible use of the funds, it may be necessary to amend the existing legal basis. (Federal press release)

More on the subject of natural hazards here