ShakeMap系统是Wald et al.等人开发的一套开源、免费、准实时的烈度速报系统,能够在震后自动生成地震动峰值(PGA/PGV)等值图、仪器烈度分布图等产品,可以为震后各项应急救援的制定提供科学的参考依据。本文以该系统为基础,重新编译并...ShakeMap系统是Wald et al.等人开发的一套开源、免费、准实时的烈度速报系统,能够在震后自动生成地震动峰值(PGA/PGV)等值图、仪器烈度分布图等产品,可以为震后各项应急救援的制定提供科学的参考依据。本文以该系统为基础,重新编译并应用于国内系统架构,并使用国内前人对地震动衰减和仪器烈度计算等方面的研究成果替换系统原有模块对其进行“改造”,期望获得真实反映出地震情况的产品。由于ShakeMap系统的产品内容为英文表述,使得国内大众对地震信息的获取和理解存在一定的困难,因而本文对ShakeMap系统的图形、网页和电子邮件通知等产品进行相应的本地化工作,以便于公众对信息的理解和地震信息的传播,提升系统的应用价值。最后,本文将“改造后”的ShakeMap系统应用于福建地区,并以2013年9月4日福建省莆田市仙游县M4.8级地震为例,说明改造后的系统在福建地区应用的可行性及局限性,期望为国内烈度速报系统的研究及应用提供一定的参考和借鉴。展开更多
In accordance with the principle of similarity in geology and topography, the Vs^30 （the average shear-velocity down to a 30m depth below the surface） approximation of sites is acquired by correlation between Vs^30 ...In accordance with the principle of similarity in geology and topography, the Vs^30 （the average shear-velocity down to a 30m depth below the surface） approximation of sites is acquired by correlation between Vs^30 and slopes after calculating the maximum slope of topography using the 30-sec Chinese Mainland DEM （Digital Elevation Model） data set. Site-amplification factors are then quantified with Vs^30 and applied to the ShakeMap system developed by this study to revise ground-motion amplitudes on bedrock estimated from empirical relationships. Finally, the distribution of ground motion parameters on the surface is obtained. This article also introduces the calculation process, calculation models of the ShakeMap systems and related software systems. In conclusion, certain examples indicate that the ShakeMap system is feasible in the Chinese Mainland.展开更多
In this article,we present a new data collection that combines information about earthquake damage with seismic shaking.Starting from the Da.D.O.database,which provides information on the damage of individual building...In this article,we present a new data collection that combines information about earthquake damage with seismic shaking.Starting from the Da.D.O.database,which provides information on the damage of individual buildings subjected to sequences of past earthquakes in Italy,we have generated ShakeMaps for all the events with magnitude greater than 5.0 that have contributed to these sequences.The sequences under examination are those of Irpinia 1980,Umbria Marche 1997,Pollino 1998,Molise 2002,L’Aquila 2009 and Emilia 2012.In this way,we were able to combine,for a total of the 117,695 buildings,the engineering parameters included in Da.D.O.,but revised and reprocessed in this application,and the ground shaking data for six different variables(namely,intensity in MCS scale,PGA,PGV,SA at 0.3s,1.0s and 3.0s).The potential applications of this data collection are innumerable:from recalibrating fragility curves to training machine learning models to quantifying earthquake damage.This data collection will be made available within Da.D.O.,a platform of the Italian Department of Civil Protection,developed by EUCENTRE.展开更多
文摘ShakeMap系统是Wald et al.等人开发的一套开源、免费、准实时的烈度速报系统,能够在震后自动生成地震动峰值(PGA/PGV)等值图、仪器烈度分布图等产品,可以为震后各项应急救援的制定提供科学的参考依据。本文以该系统为基础,重新编译并应用于国内系统架构,并使用国内前人对地震动衰减和仪器烈度计算等方面的研究成果替换系统原有模块对其进行“改造”,期望获得真实反映出地震情况的产品。由于ShakeMap系统的产品内容为英文表述,使得国内大众对地震信息的获取和理解存在一定的困难,因而本文对ShakeMap系统的图形、网页和电子邮件通知等产品进行相应的本地化工作,以便于公众对信息的理解和地震信息的传播,提升系统的应用价值。最后,本文将“改造后”的ShakeMap系统应用于福建地区,并以2013年9月4日福建省莆田市仙游县M4.8级地震为例,说明改造后的系统在福建地区应用的可行性及局限性,期望为国内烈度速报系统的研究及应用提供一定的参考和借鉴。
基金sponsored by the Basic Scientific Research Business Special,Institute of Geophysics,China Earthquake Administration (BQJB08B24)
文摘In accordance with the principle of similarity in geology and topography, the Vs^30 （the average shear-velocity down to a 30m depth below the surface） approximation of sites is acquired by correlation between Vs^30 and slopes after calculating the maximum slope of topography using the 30-sec Chinese Mainland DEM （Digital Elevation Model） data set. Site-amplification factors are then quantified with Vs^30 and applied to the ShakeMap system developed by this study to revise ground-motion amplitudes on bedrock estimated from empirical relationships. Finally, the distribution of ground motion parameters on the surface is obtained. This article also introduces the calculation process, calculation models of the ShakeMap systems and related software systems. In conclusion, certain examples indicate that the ShakeMap system is feasible in the Chinese Mainland.
文摘In this article,we present a new data collection that combines information about earthquake damage with seismic shaking.Starting from the Da.D.O.database,which provides information on the damage of individual buildings subjected to sequences of past earthquakes in Italy,we have generated ShakeMaps for all the events with magnitude greater than 5.0 that have contributed to these sequences.The sequences under examination are those of Irpinia 1980,Umbria Marche 1997,Pollino 1998,Molise 2002,L’Aquila 2009 and Emilia 2012.In this way,we were able to combine,for a total of the 117,695 buildings,the engineering parameters included in Da.D.O.,but revised and reprocessed in this application,and the ground shaking data for six different variables(namely,intensity in MCS scale,PGA,PGV,SA at 0.3s,1.0s and 3.0s).The potential applications of this data collection are innumerable:from recalibrating fragility curves to training machine learning models to quantifying earthquake damage.This data collection will be made available within Da.D.O.,a platform of the Italian Department of Civil Protection,developed by EUCENTRE.
