Abstract

The paper presents the results of modeling the stress–strain state of the epicentral zone of the strong crustal Hanshin–Awaji earthquake, which occurred in the area of Kobe (Japan) on January 17, 1995, with a magnitude M of 6.9. In this work the author’s method for modelling and analyzing the stress–strain state of the epicentral zones of crustal earthquakes was used. The geological, tectonic, and seismological data for the earthquake region are used as input data and boundary conditions for modeling. In this work it is shown that the main rupture arising at the origin of the earthquake is generated in a zone of high stress intensity at a certain ratio of the main tectonic stresses and propagates through areas of anomalously high stress concentration, causing maximum displacements in these zones. The results provide new insights into the focal mechanism of an earthquake, aimed at predicting the location and magnitude of strong crustal earthquakes in earthquake-prone areas.

中文翻译：

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阪神-淡路地震断裂形成机制（日本神户）1995 年 1 月 17 日，M 6.9

摘要

本文介绍了 1995 年 1 月 17 日发生在日本神户地区的强地壳阪神-淡路地震震中带应力应变状态的模拟结果，震级为M6.9。在这项工作中，作者使用了建模和分析地壳地震震中带应力应变状态的方法。地震区的地质、构造和地震数据用作建模的输入数据和边界条件。在这项工作中表明，在地震起源处产生的主要破裂产生于与主要构造应力一定比例的高应力强度区域，并通过异常高应力集中的区域传播，导致这些区域的最大位移。区。研究结果提供了对地震震源机制的新见解，旨在预测地震多发地区强地壳地震的位置和震级。