Geomechanical Conditions of Seismic, Volcanic, and Hydrothermal Activity in Kamchatka

IF 0.9 4区地球科学 Q4 GEOCHEMISTRY & GEOPHYSICS

Journal of Volcanology and Seismology Pub Date : 2026-04-24 DOI:10.1134/S0742046326700120

A. V. Kiryukhin, A. V. Solomatin

引用次数: 0

Abstract

The distribution and orientation of regional seismogenic faults of Kamchatka are calculated by Frac-Digger method based on seismic data catalogs of the Kamchatka Branch of the Federal Research Center United Geophysical Survey, Russian Academy of Sciences. The analysis of Mohr–Coulomb diagrams shows three main geomechanical states, when the regional seismogenic faults can be active: NWW horizontal extention at an azimuth of 300°, horizontal radial extention, and horizontal radial compression. Hydrothermal explosions occur, when the pore pressure exceeds the stress values in the rock mass.

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堪察加地震、火山和热液活动的地质力学条件

根据俄罗斯科学院联合地球物理调查联邦研究中心堪察加分部地震资料目录，采用fracdigger方法计算了堪察加地区区域发震断层的分布和走向。Mohr-Coulomb图分析表明，区域发震断裂活动时，主要有3种地质力学状态：NWW向300°水平伸展、水平径向伸展和水平径向压缩。当孔隙压力超过岩体的应力值时，就会发生热液爆炸。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Volcanology and Seismology 地学-地球化学与地球物理

CiteScore

1.50

自引率

28.60%

发文量

审稿时长

>12 weeks

期刊介绍： Journal of Volcanology and Seismology publishes theoretical and experimental studies, communications, and reports on volcanic, seismic, geodynamic, and magmatic processes occurring in the areas of island arcs and other active regions of the Earth. In particular, the journal looks at present-day land and submarine volcanic activity; Neogene–Quaternary volcanism; mechanisms of plutonic activity; the geochemistry of volcanic and postvolcanic processes; geothermal systems in volcanic regions; and seismological monitoring. In addition, the journal surveys earthquakes, volcanic eruptions, and techniques for predicting them.