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| Titel |
Comparison between seismic and domestic risk in moderate seismic hazard prone region: the Grenoble City (France) test site |
| VerfasserIn |
F. Dunand, P. Gueguen |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 12, no. 2 ; Nr. 12, no. 2 (2012-02-29), S.511-526 |
| Datensatznummer |
250010518
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| Publikation (Nr.) |
 copernicus.org/nhess-12-511-2012.pdf |
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| Zusammenfassung |
| France has a moderate level of seismic activity, characterized by diffuse
seismicity, sometimes experiencing earthquakes of a magnitude of more than 5
in the most active zones. In this seismicity context, Grenoble is a city of
major economic and social importance. However, earthquakes being rare, public
authorities and the decision makers are only vaguely committed to reducing
seismic risk: return periods are long and local policy makers do not have
much information available. Over the past 25 yr, a large number of studies
have been conducted to improve our knowledge of seismic hazard in this
region. One of the decision-making concerns of Grenoble's public authorities,
as managers of a large number of public buildings, is to know not only the
seismic-prone regions, the variability of seismic hazard due to site effects
and the city's overall vulnerability, but also the level of seismic risk and
exposure for the entire city, also compared to other natural or/and domestic
hazards. Our seismic risk analysis uses a probabilistic approach for regional
and local hazards and the vulnerability assessment of buildings. Its
applicability to Grenoble offers the advantage of being based on knowledge
acquired by previous projects conducted over the years. This paper aims to
compare the level of seismic risk with that of other risks and to introduce
the notion of risk acceptability in order to offer guidance in the management
of seismic risk. This notion of acceptability, which is now part of seismic
risk consideration for existing buildings in Switzerland, is relevant in
moderately seismic-prone countries like France. |
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