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Unified Scaling Law for Earthquakes as Applied to Assessment of Seismic Hazard and Associate Risks

机译:地震统一地震统一规律法律评估抗震危险及助理风险

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The distribution of the number of seismic events by magnitudes-the Gutenberg-Richter frequency-magnitude relation-is of paramount importance for seismic hazard assessment of a territory. The generalization of the Gutenberg-Richter relation-the Unified Scaling Law for Earthquakes (USLE) proposed in 1988 makes it possible to take into account the pattern of epicentral distribution of seismic events when changing the spatial scale of the analysis. This is extremely important for adequate downscaling of the frequency of occurrence into a smaller area within the territory under study (e.g., in the megalopolis). In 2002, Per Buck suggested a dual formulation of USLE where, instead of the number of earthquakes over a certain period of time, the reciprocal of their frequency of occurrence-the time between seismic events-is used. The same year, the Institute of Earthquake Prediction Theory and Mathematical Geophysics of the Russian Academy of Sciences developed a modified algorithm for robust estimation of USLE parameters referred to as Scaling Coefficients Estimation (SCE) for producing seismic hazard maps of territories prone to seismic effects. This brief review is focused on the use of the USLE approach to the assessment of seismic hazard and associated risk.
机译:通过幅度 - 古龄堡 - 碎石频率关系的地震事件数量分布 - 对于地震危害评估的抗震危害评估至关重要。 1988年提出的地震(USLE)的统一缩放法 - 统一的地震规律(USLE)的概括使得可以考虑在改变分析的空间规模时震动事件的震中分布模式。这对于充分缩小到在研究中的境内的较小区域的情况下足够的次数非常重要(例如,在Megalopolis)中。 2002年,每块降压建议使用elle的双重制定,而不是一段时间内的地震的数量,其发生频率的倒数 - 使用地震事件之间的时间。同年,俄罗斯科学院地震预测理论和数学地球物理学研究所开发了一种改进的算法,用于缩放系数估计(SCE)的稳健估计,用于产生易受地震效应的地震危害地图的缩放系数估计(SCE)。本简要审查专注于使用USLE方法来评估地震危害和相关风险。

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