The position of Ardabil in the seismic hazard zoning map, the March 1996 earthquake event, large deformations in the earth's surface and the construction of the Yamchi earthen dam, necessitate the study of the seismic behavior of the Yamchi anticline. Anticline elongation is one of the geodynamic processes and is assumed to be continuous over time, this process is studied as a two-dimensional model with the finite difference method in FLAC software. Time history information and content provide a better explanation of the process of changing process components. Ground surface topography, displacement, velocity, acceleration, density, stress and temperature are the main components of the model. The topography leading to the anticline elongation results from a slow event with one degree of freedom and no major seismic shock, with a stress-relief cycle. Despite the large deformation, the stress-aggregation-release cycle showed that sudden stress changes did not have such a trend and magnitude, leading to a large seismic event.