气候变化领域集成服务门户(CCPortal): A seismicity revision and a probabilistic seismic hazard assessment using the Monte Carlo approach for the Canary Islands (Spain)

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DOI	10.1007/s11069-021-04747-0
	A seismicity revision and a probabilistic seismic hazard assessment using the Monte Carlo approach for the Canary Islands (Spain)
	Mezcua J.; Rueda J.
发表日期	2021
ISSN	0921030X
起始页码	1609
结束页码	1628
卷号	108 期号:2
英文摘要	This study consists of a seismicity revision and the assessment of the probabilistic seismic hazard of the Canary Islands. In order to analyze its seismotectonics and associated seismic hazard, we performed a full revision of the seismicity of this region of oceanic intraplate seismicity, whose earthquake rate is low and its links to local tectonics are poorly understood. In this catalog, we designed a criterion for assigning the epicenter of historical events and homogenized the different magnitude values defined over time for earthquakes from the instrumental period. This analysis of the seismicity of the region and the structural lineaments obtained by previous geophysical studies enabled us to define two possible seismic zonings, which were then used in the probabilistic seismic hazard assessment. Given the special characteristics of the seismicity of the Canary Islands, we chose a Monte Carlo approach for calculating the hazard. We used the two alternatives provided by EqHaz open-source code (Assatourians and Atkinson, Seismol Res Lett 84:516–524, 2013; Seismol Res Lett 90:1407–1419, 2019), namely uniform and smoothed seismicity. Given that no ground motion prediction equation (GMPE) for the area is available, we selected the most robust and recent applicable relations from similar tectonic environment and checked the fit of the existing accelerometric data for the Canary Islands. We mixed the aleatory and epistemic uncertainties for each area of the two zonings in the hazard calculation. With this approach, the values obtained may be considered in the context of an extreme-value distribution of motions at a specific site after converting the simulated earthquakes into earth motion with the selected GMPEs. The final outcome is hazard maps for different periods in terms of horizontal acceleration at bedrock level, which we compared with the results deduced from recent hazard studies in the area. © 2021, The Author(s), under exclusive licence to Springer Nature B.V.
关键词	Canary Islands Monte Carlo approach Probabilistic seismic hazard Seismicity revision
英文关键词	Serinus canaria
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206425
作者单位	Fundación José García Siñeriz, Calle Alenza 1, Madrid, 28003, Spain; Instituto Geográfico Nacional, Calle General Ibáñez de Ibero 3, Madrid, 28003, Spain; ETSI Topografía, Geodesia y Cartografía, Departamento de Ingeniería Topográfica y Cartografía, Universidad Politécnica de Madrid, Calle de la Arboleda s/n, Madrid, 28031, Spain
推荐引用方式 GB/T 7714	Mezcua J.,Rueda J.. A seismicity revision and a probabilistic seismic hazard assessment using the Monte Carlo approach for the Canary Islands (Spain)[J],2021,108(2).
APA	Mezcua J.,&Rueda J..(2021).A seismicity revision and a probabilistic seismic hazard assessment using the Monte Carlo approach for the Canary Islands (Spain).Natural Hazards,108(2).
MLA	Mezcua J.,et al."A seismicity revision and a probabilistic seismic hazard assessment using the Monte Carlo approach for the Canary Islands (Spain)".Natural Hazards 108.2(2021).