Abstract

The paper presents the results of a new generalization of seismic hazard data for the northwestern and central sectors of the Greater Caucasus. A fundamentally new model of the seismotectonic basis for the seismic hazard map of the region has been prepared. The model is used to calculate seismic impact on a probabilistic basis. The work included three stages. At the first stage, seismotectonic studies were carried out, as a result of which a seismotectonic model was created and a map of zones of possible earthquake centers was compiled. At the second stage, the seismicity and seismic regime were studied in detail. The third stage calculated the frequency of seismic vibrations of various intensities in the study area based on the parameters of the macroseismic field equation, seismic activity patterns, zones of possible earthquake sources, and the slope of the earthquake frequency of the earthquakes. As a result, seismic hazard maps were compiled. The northwestern and central sectors of the Greater Caucasus look like a seismic hazardous area, where the level of seismic impacts reaches 8.5 on maps A and B. At the same time, compared to the data from the GSZ-97 and GSZ-2015 maps, the results appear more differentiated and generally significantly reduce the level of seismic hazard in the region. The study is important from the methodological aspect in light of seismic risk management of this densely populated and actively developed territory of Russia.

中文翻译：

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详细比例的西北和中部高加索地区地震危险性图

摘要

本文介绍了对大高加索西北部和中部地震灾害数据进行新的概括的结果。已经为该地区的地震灾害图准备了一个全新的地震构造基础模型。该模型用于基于概率计算地震影响。这项工作包括三个阶段。在第一阶段，进行了地震构造研究，结果建立了地震构造模型，并编制了可能的地震中心区域图。在第二阶段，详细研究了地震活动性和地震类型。第三阶段根据宏观地震场方程，地震活动模式，可能的震源区，地震场的参数，计算研究区域内各种强度的地震振动的频率，以及地震频率的斜率。结果，编制了地震灾害图。大高加索地区的西北部和中部地区看起来像是地震危险区，地图A和B上的地震影响等级达到8.5。同时，与GSZ-97和GSZ-2015地图中的数据相比，结果看起来差异更大，并且通常会大大降低该地区的地震危险程度。从方法学的角度出发，鉴于俄罗斯这个人口稠密且活跃发展的地区的地震风险管理，这项研究具有重要意义。在地图A和B上地震影响的水平达到8.5。与此同时，与GSZ-97和GSZ-2015地图的数据相比，结果显得更具差异性，并且通常显着降低了地图中地震危险的水平。地区。从方法学的角度出发，鉴于俄罗斯这个人口稠密且活跃发展的地区的地震风险管理，这项研究具有重要意义。在地图A和B上地震影响的水平达到8.5。与此同时，与GSZ-97和GSZ-2015地图的数据相比，结果显得更具差异性，并且通常显着降低了地图中地震危险的水平。地区。从方法学的角度出发，鉴于俄罗斯这个人口稠密且活跃发展的地区的地震风险管理，这项研究具有重要意义。