Key Points: • The frequency-dependent ratio of pore pressure/confining pressure is obtained using the dynamic poroelasticity. • Hydraulic-parameter estimation depends on the varied solid/fluid coupling. • The dynamic responses of water level to seismic waves are estimated across frequencies. Abstract Estimating the hydraulic properties of subsurface aquifer is crucial to properly evaluating groundwater resources. There are many methods for estimating aquifer parameter using well water-level response using quasi static poroelastic-ity. However, these approaches have ignored the possible frequency-dependent solid/fluid coupling in the porous aquifer. In this study, three great earthquakes (2011 Mw9.1 Tohoku, 2012 Mw 8.6 Sumatra, and 2018 Mw7.6 Minahassa Peninsula) induced coseismic water-level variations in Tengchong (TC) well are observed and estimated using dynamic poroelasticity. Pore pressure/stress ratio across frequency ranges may be switched, and the permeability is estimated and validated in different frequency domains by the seismic-wave time series. The predicted coseismic water levels due to the three great earthquakes are better consistent than those using quasi static poroelasticity. The method proposed in this study is useful to in evaluating the continuous permeability variations by earthquakes and their aftershocks.