A 3D FINITE ELEMENT SIMULATION RESEARCH ON THE RELATIONSHIP BETWEEN CRUSTAL STRESS AND EARTHQUAKE ACTIVITY IN LIAONING AND ITS VICINITY
Li Ping
Lu Liangyu
Lu Zaoxun
PAN Ke
Jiao Mingruo
Abstract：Based on the latest result in research on 3D seismic wave velocity structure of crust and uppermost mantle and taking geological setting and fracture zones into consideration, a 3D geological model for the studied region is built up. The boundary constraint and force loading boundary condition for the model are determined according to the characteristics of crustal stress field deduced from earthquake focal mechanism and in-situ stress measurement data. Using linear elastic material model a 3D finite element simulation is conducted to study the characteristics of crustal stress field. A comparison analysis between the simulated stress field and earthquake locations reveals that the moderate and strong earthquakes generally occurred in the zones with high shear stress gradient. Furthermore, the paper notices a few potential earthquake-prone regions.
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Publication Date：2001-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：12( 24-35 )