Observatorio de I+D+i UPM

Memorias de investigación
Ponencias en congresos:
How new fault data and models affect seismic hazard results? Examples from southeast Spain
Año:2016
Áreas de investigación
  • Ciencias de la tierra,
  • Ingeniería civil y arquitectura
Datos
Descripción
In this work, we study the impact of different approaches to incorporate faults in a seismic hazard assessment analysis. Firstly, we consider two different methods to distribute the seismicity of the study area into faults and area-sources, based on magnitude partitioning and on moment rate distribution. We use two recurrence models to characterize fault activity: the characteristic earthquake model and the modified Gutenberg-Richter exponential frequency-magnitude distribution. An application of the work is developed in the region of Murcia (southeastern Spain), due to the availability of fault data and because is one of the areas in Spain with higher seismic hazard. The parameters used to model fault sources are derived from paleoseismological and field studies obtained from the literature and online repositories. Additionally, for some significant faults only, geodetically-derived slip rates are used to compute recurrence periods. The results of all the seismic hazard computations carried out using different models and data are represented in maps of expected peak ground accelerations for a return period of 475 years. Maps of coefficients of variation are presented to constraint the variability of the end-results to different input models and values. Additionally, the different hazard maps obtained in this study are compared with the seismic hazard maps obtained in previous work for the entire Spanish territory and more specifically for the region of Murcia. This work is developed in the context of the MERISUR project (ref. CGL2013-40492-R), with funding from the Spanish Ministry of Economy and Competitiveness.
Internacional
Si
Nombre congreso
EGU General Assembly
Tipo de participación
970
Lugar del congreso
Viena
Revisores
Si
ISBN o ISSN
CDP08UPM
DOI
Fecha inicio congreso
18/04/2016
Fecha fin congreso
22/04/2016
Desde la página
1
Hasta la página
1
Título de las actas
Geophysical Research Abstracts
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Jorge Miguel Gaspar Escribano (UPM)
  • Autor: Maria Belen Benito Oterino (UPM)
  • Autor: Alejandra Staller Vazquez (UPM)
  • Autor: Sandra Ruiz Barajas (UPM)
  • Autor: Ligia Quirós (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Ingeniería Sísmica: Dinámica de Suelos y Estructuras
  • Departamento: Ingeniería Topográfica y Cartografía
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