1887
PDF

Abstract

Summary

With the purpose of studying the regularities of the stress-strain state in the vicinity of the earthquake focus, taking into account the anisotropy of the rigid rock’s properties of the lithosphere, we have carried out numerical modeling of the distribution of displacements and stresses in different directions. We have carried out the investigation on the basis of the variation finite element method for elastic multilayer orthotropic shells of rotation, taking into account shear compressibility. We have established that some general characteristic features of the stress-strain state can be obtained for the area of the elastic anisotropic lithosphere in the vicinity of the earthquake focus. We have shown that the distributions of displacements and stresses in the vicinity of the earthquake focus in different directions depend on the thickness of the sedimentary rock layer and the thickness of the crystalline basement rocks of the lithosphere, as well as on the distribution of the rigidity of different rocks in different directions. Changes in the rigidity of rocks in the shear direction have the greatest influence on the quantitative and qualitative changes in the distribution of displacements and stresses.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.2025510008
2025-04-14
2026-02-11
Loading full text...

Full text loading...

/deliver/fulltext/2214-4609/2025/monitoring_2025/Mon25-008.html?itemId=/content/papers/10.3997/2214-4609.2025510008&mimeType=html&fmt=ahah

References

  1. Burov, E.B. (2010). The equivalent elastic thickness (T), seismicity and the long-term rheology of continental lithosphere: Time to burn out “crème brulee”. Insights from large-scale geodynamic modeling. Tectonophysics, 484, 4–26.
    [Google Scholar]
  2. Karato, S. (2008). Deformation of Earth materials. An introduction to the rheology solid Earth.Cambridge University Press, Cambridge.
    [Google Scholar]
  3. Karnauhov, V.G., Kirichok, I.F. (1986). Connected problems of viscoelastic plates and shells. Naukova dumka, Kiev. (in Russian).
    [Google Scholar]
  4. Lubkov, M.V. (2011). Modeling of the strain-deformable state and anomalous gravity field in the epicenter of the earthquake. Geoіnformatika, 1, 51–56. (in Ukrainian).
    [Google Scholar]
  5. Spirtus, V.B., Savchuk, E.V. (2006). Specific fiches of the creep and brittle damage at the shifting deformation of viscoelastic of defective environment. Geofiz. zhurn., 28(2), 123–129. (in Russian).
    [Google Scholar]
  6. Tjorkot, D., Shubert, D. (1985). Geodynamics. Geological applications of the continuum physics.Mir, Moscow. (in Russian).
    [Google Scholar]
  7. Sherman, S.I. (2005). Tectonophysical analysis of the seismic processes in the lithosphere active faults zones and problem of average daily earthquake forecast. Geofiz. zhurn., 27(1), 20–38. (in Russian).
    [Google Scholar]
  8. Wright, T.J. (2016). The earthquake deformation cycle. Astronomy and Geophysics, 57, 4.20–4.26.
    [Google Scholar]
/content/papers/10.3997/2214-4609.2025510008
Loading
/content/papers/10.3997/2214-4609.2025510008
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error