MatNERApor—A Matlab Package for Numerical Modeling of Nonlinear Response of Porous Saturated Soil Deposits to P- and SH-Waves Propagation

The paper is devoted to the problem of numerical modeling earthquake response porous saturated soil deposits seismic waves propagation. Site-specific analysis a necessary and important component hazard assessment. Accounting for complex structure soils, i.e., content in them, addition solid matrix, pore water, gas mixture ice, especially water areas zones continuous or sparse permafrost, as well massive release bubble from bottom sediments. purpose this study introduce an algorithm its Matlab implementation nonlinear vertical P- SH-waves presented MatNERApor package consists set scripts functions. was tested verified using records arrays Kik-net network. In addition, local earthquakes obtained by ocean seismographs Laptev Sea 2019–2020 were used demonstrate effect layer above seabed sites on reduction motions spectra. results calculations showed good agreement with data real records, which justifies correctness theoretical basis software implementation.