Poroelastic properties, including hydraulic properties, govern fluid flow and deformation of geological formations. In this paper, we discuss the applicability of methods for estimating hydraulic properties from pore pressure response to cyclic loading such as atmospheric pressure, earth tide, ocean tide, and seawater wave in terms of loading frequencies, measurement depths, and physical properties of materials. We also show 2 case studies in which we estimate hydraulic diffusivity using pore pressure fluctuations to atmospheric loading at about 100 m in depth, and those to seawater wave loading at about 1 m below the sea floor.