Indicator natural hazards

Earthquake-specific building regulations for private buildings

Earthquake damage can be avoided through earthquake-proof construction of new buildings and retrospective earthquake-proofing of existing buildings. In the absence of the state monitoring of building regulations, however, earthquake regulations are very often neglected or incorrectly implemented. Earthquake-proof construction will only improve and become systematic when the cantons and communes make the implementation of specific building regulations for earthquake safety mandatory.

Assessment of the state
poor poor
Assessment of the trend
positive positive
Cantons with earthquake-specific building regulations 2017: 7 Cantons with earthquake-specific building regulations 2016: 7 Cantons with earthquake-specific building regulations 2015: 7 Cantons with earthquake-specific building regulations 2014: 7 Cantons with earthquake-specific building regulations 2013: 6 Cantons with earthquake-specific building regulations 2011: 5 Cantons with earthquake-specific building regulations 2010: 4 Cantons with earthquake-specific building regulations 2005: 3 Cantons with earthquake-specific building regulations 2004: 2 Cantons with earthquake-specific building regulations 2001: 1 Cantons with earthquake-specific building regulations 2000: 0

Data for the graph: Excel
Source: Conference of Swiss Building, Planning and Environment Directors and direct contacts with cantons
Comment

Although a positive development could be observed over the last decade, only a minority of the cantons make the granting of planning permission for private new buildings subject to compliance with the SIA standards. At present the cantons in question are: Basel-Stadt, Valais, Nidwalden, Jura, Aargau, Freiburg and Lucerne (chronological order). The cantons of Vaud and Bern intend to introduce corresponding provisions.

The scope of the regulations and the stringency of compliance monitoring varies from canton to canton.

International comparison

This indictor is not comparable at international level. There is no database or comparison of practices at international level in relation to earthquake-specific building regulations and the granting of planning permission.

Method

The data were obtained through a survey of the cantonal building authorities in 2007. The surveying and updating of data prior to 2007 was carried out on the basis of direct contact between the FOEN and the cantons.

Basis for assessment of the trend
Targeted trend Initial value Final value Variation in % Observed trend Assessment
Growth Average 2000-2004 Average 2015-2017 600.00% Growth positive
 
Last updated on: 10.07.2019

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