“…Wave propagation and diffraction by subsurface and surface scatterers such as mountain, valley, tunnel, cavity, crack, and other inhomogeneous inclusions, in elastic and fluid‐saturated porous media play an important role in various engineering fields, such as earthquake engineering, oil and gas exploration, geophysics, and civil engineering foundation and structure. In recent decades, these problems have been intensely investigated, in elastic medium, 1–13 as well as fluid saturated poroelastic medium 14–18 . In practice, most subsurface materials, such as soil and rock, are porous and infiltrated with one or more fluids; hence the present work is focused on wave propagation and diffraction in poroelastic medium.…”