Seismic hazard of the Iberian Peninsula: evaluation with kernel functions

The seismic hazard of the Iberian Peninsula is analysed using a nonparametric methodology based on statistical kernel functions; the activity rate is derived from the catalogue data, both its spatial dependence (without a seismogenic zonation) and its magnitude dependence (without using Gutenberg–Ri...

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Main Authors: M. J. Crespo, F. Martínez, J. Martí
Format: Article
Language:English
Published: Copernicus Publications 2014-05-01
Series:Natural Hazards and Earth System Sciences
Online Access:http://www.nat-hazards-earth-syst-sci.net/14/1309/2014/nhess-14-1309-2014.pdf
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author M. J. Crespo
F. Martínez
J. Martí
author_facet M. J. Crespo
F. Martínez
J. Martí
author_sort M. J. Crespo
collection DOAJ
description The seismic hazard of the Iberian Peninsula is analysed using a nonparametric methodology based on statistical kernel functions; the activity rate is derived from the catalogue data, both its spatial dependence (without a seismogenic zonation) and its magnitude dependence (without using Gutenberg–Richter's relationship). The catalogue is that of the Instituto Geográfico Nacional, supplemented with other catalogues around the periphery; the quantification of events has been homogenised and spatially or temporally interrelated events have been suppressed to assume a Poisson process. <br><br> The activity rate is determined by the kernel function, the bandwidth and the effective periods. The resulting rate is compared with that produced using Gutenberg–Richter statistics and a zoned approach. Three attenuation relationships have been employed, one for deep sources and two for shallower events, depending on whether their magnitude was above or below 5. The results are presented as seismic hazard maps for different spectral frequencies and for return periods of 475 and 2475 yr, which allows constructing uniform hazard spectra.
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spelling doaj.art-35a27d3ae6314daa8d8e2411c91c3d622022-12-21T18:21:48ZengCopernicus PublicationsNatural Hazards and Earth System Sciences1561-86331684-99812014-05-011451309132310.5194/nhess-14-1309-2014Seismic hazard of the Iberian Peninsula: evaluation with kernel functionsM. J. Crespo0F. Martínez1J. Martí2Universidad Politécnica de Madrid, ETSI Minas, Calle de Ríos Rosas, 21, Madrid, SpainUniversidad Politécnica de Madrid, ETSI Caminos, Canales y Puertos, Calle Profesor Aranguren S/N, Ciudad Universitaria, Madrid, SpainUniversidad Politécnica de Madrid, ETSI Minas, Calle de Ríos Rosas, 21, Madrid, SpainThe seismic hazard of the Iberian Peninsula is analysed using a nonparametric methodology based on statistical kernel functions; the activity rate is derived from the catalogue data, both its spatial dependence (without a seismogenic zonation) and its magnitude dependence (without using Gutenberg–Richter's relationship). The catalogue is that of the Instituto Geográfico Nacional, supplemented with other catalogues around the periphery; the quantification of events has been homogenised and spatially or temporally interrelated events have been suppressed to assume a Poisson process. <br><br> The activity rate is determined by the kernel function, the bandwidth and the effective periods. The resulting rate is compared with that produced using Gutenberg–Richter statistics and a zoned approach. Three attenuation relationships have been employed, one for deep sources and two for shallower events, depending on whether their magnitude was above or below 5. The results are presented as seismic hazard maps for different spectral frequencies and for return periods of 475 and 2475 yr, which allows constructing uniform hazard spectra.http://www.nat-hazards-earth-syst-sci.net/14/1309/2014/nhess-14-1309-2014.pdf
spellingShingle M. J. Crespo
F. Martínez
J. Martí
Seismic hazard of the Iberian Peninsula: evaluation with kernel functions
Natural Hazards and Earth System Sciences
title Seismic hazard of the Iberian Peninsula: evaluation with kernel functions
title_full Seismic hazard of the Iberian Peninsula: evaluation with kernel functions
title_fullStr Seismic hazard of the Iberian Peninsula: evaluation with kernel functions
title_full_unstemmed Seismic hazard of the Iberian Peninsula: evaluation with kernel functions
title_short Seismic hazard of the Iberian Peninsula: evaluation with kernel functions
title_sort seismic hazard of the iberian peninsula evaluation with kernel functions
url http://www.nat-hazards-earth-syst-sci.net/14/1309/2014/nhess-14-1309-2014.pdf
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