气候变化领域集成服务门户(CCPortal): Empirical relationships between macroseimic intensity and instrumental ground motion parameters for the intermediate-depth earthquakes of Vrancea region, Romania

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DOI	10.1007/s11069-020-04070-0
	Empirical relationships between macroseimic intensity and instrumental ground motion parameters for the intermediate-depth earthquakes of Vrancea region, Romania
	Ardeleanu L.; Neagoe C.; Ionescu C.
发表日期	2020
ISSN	0921030X
起始页码	2021
结束页码	2043
卷号	103 期号:2
英文摘要	Empirical relationships between MSK macroseismic intensity and several engineering ground motion parameters are developed using the macroseismic and instrumental data available for five significant earthquakes (Mw magnitude 6 and above), which occurred during the past half-century in Vrancea region, Romania. The relations are suitable for the Carpathian bend zone and surroundings, and they are valid for intensity values between 5 and 8; in this range, the MSK intensity is basically defined by the level of structural damage. The capability of the selected ground motion parameters to predict the macroseismic intensity is evaluated by observing the standard deviations associated with the proposed regression models. Generally, the parameters which take into account the ground motion duration appear to be more stable predictors than the parameters based on the peak ground motion. The most reliable damage indicator appears to be the Arias intensity. The proposed regression relationships provide intensity predictions with uncertainty close to one-half unit; therefore, they are reliable tools for rapid loss estimation and emergency response coordination following a strong earthquake of Vrancea region. The derived equations represent also useful instruments for seismic risk assessment by methodologies based on macroseismic intensity, since in current practice the earthquake hazard and seismic impact are mainly given in terms of engineering ground motion parameters. © 2020, Springer Nature B.V.
关键词	Empirical intensity—ground motion relationships Engineering ground motion parameters Intensity predictive equations MSK macroseismic intensity Undercrustal earthquakes Vrancea region
英文关键词	earthquake intensity; earthquake magnitude; earthquake prediction; empirical analysis; estimation method; ground motion; risk assessment; seismic data; seismicity; Carpathians; Romania; Vrancea; Anas
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/205585
作者单位	National Institute for Earth Physics, 12 Calugareni Str, P. O. Box MG-2, Magurele, Ilfov 077125, Romania
推荐引用方式 GB/T 7714	Ardeleanu L.,Neagoe C.,Ionescu C.. Empirical relationships between macroseimic intensity and instrumental ground motion parameters for the intermediate-depth earthquakes of Vrancea region, Romania[J],2020,103(2).
APA	Ardeleanu L.,Neagoe C.,&Ionescu C..(2020).Empirical relationships between macroseimic intensity and instrumental ground motion parameters for the intermediate-depth earthquakes of Vrancea region, Romania.Natural Hazards,103(2).
MLA	Ardeleanu L.,et al."Empirical relationships between macroseimic intensity and instrumental ground motion parameters for the intermediate-depth earthquakes of Vrancea region, Romania".Natural Hazards 103.2(2020).