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Title

Active fault databases and seismic hazard calculations: a compromise between science and practice: review of case studies from Spain.

AuthorsGarcía Mayordomo, Julián; Martín Banda, Raquel; Insúa Arévalo, Juan Miguel; Álvarez Gómez, José Antonio; Martínez-Díaz, J. J. CSIC ORCID
Keywordsfalla activa
base datos
sismo
riesgo sísmico
estudio caso
España
Issue Date2017
PublisherCopernicus Publications
CitationGeophysical Research Abstracts, vol.19, 18773
AbstractSince the Quaternary Active Faults Database of Iberia (QAFI) was released in February 2012 a number of studies aimed at producing seismic hazard assessments have made use of it. We will present a summary of the shortcomings and advantages that were faced when QAFI was considered in different seismic hazard studies. These include the production of the new official seismic hazard map of Spain, performed in the view of the foreseen adoption of Eurocode-8 throughout 2017. The QAFI database was considered as a complementary source of information for designing the seismogenic source-zone models used in the calculations, and particularly for the estimation of maximum magnitude distribution in each zone, as well as for assigning the predominant rupture mechanism based on style of faulting. We will also review the different results obtained by other studies that considered QAFI faults as independent seismogenic-sources in opposition to source-zones, revealing, on one hand, the crucial importance of data-reliability and, on the other, the very much influence that ground motion attenuation models have on the actual impact of fault-sources on hazard results. Finally, we will present briefly the updated version of the database (QAFI v.3, 2015), which includes an original scheme for evaluating the reliability of fault seismic parameters specifically devised to facilitate decision-making to seismic hazard practitioners.
DescriptionEuropean Geosciences Union General Assembly (2017. Viena)
Publisher version (URL)https://meetingorganizer.copernicus.org/EGU2017/EGU2017-18773.pdf
URIhttp://hdl.handle.net/10261/273624
Appears in Collections:(IGME) Comunicaciones congresos




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