Abstract

The article summarizes the available and newly collected data on the near-surface and deep structure and modern geodynamics of key regions of the northwest part of the Greater Caucasus. Models of the fault-block structure of this orogen and the nature of seismogenic displacements along the faults on its northwest pericline have been developed. The reasons for the abrupt change of the fold-block structure in the area of the Anapa seismogenerating flexural-fault zone are clarified. Detailed models of the near-surface and deep structure were constructed for a number of the most important seismogenerating structures in the Northwestern Caucasus that caused the Lower Kuban-II earthquake on November 9, 2002, with M = 4.7, and the Su-Psekh event on December 10, 2012, with M_w = 4.3, as well as the Pshekh earthquake on November 15, 2004 in Krasnodar krai with M = 4.6. Three-dimensional geodynamic and seismotectonic models of seismogenerating structures were constructed based on the results of field geological and geophysical surveys.

中文翻译：

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大高加索西北部21世纪地震震源区的深部构造和构造特征

摘要

本文总结了大高加索西北部主要地区近地表和深部结构以及现代地球动力学的可用数据和最新收集的数据。已经开发了该造山带断块结构的模型，以及沿其西北周线沿断层的成地震位移的性质。阐明了阿纳帕地震发生弯曲断裂带区域折叠块结构突变的原因。为西北高加索地区许多最重要的地震发生结构建立了详细的近地表和深部结构模型，这些结构在2002年11月9日引起了下库班-II级地震，M = 4.7，并且发生了Su-Psekh事件2012年12月10日，与中号_{w ^}= 4.3，以及2004年11月15日克拉斯诺达尔边疆区的Pshekh地震，M = 4.6。根据野外地质和地球物理调查的结果，建立了地震发生构造的三维地球动力学和地震构造模型。