An example of 2.5D modeling for an anisotropic medium, by using a second order accurate central finite-difference scheme throughout the variables of the three distributed grids is demonstrated. We show an example of HTI anisotropic medium modeling for quasi-primary qP, and fast qS1 and slow qS2 quasi- shear waves. The time of calculation with 2.5 modeling is considerably lower than in the case of a 3D modeling for the same medium.