Thesis briefly describes the occurrence of an earthquake and its effect on the structure. The aim of the paper was to try to understand how the block overturns when applying the impulse to the base on which it is located. In addition to the overturning, a key element of the work was the rocking system of the blocks. In order to explore the two behaviors, two blocks of different dimensions were taken and placed in three positions - parallel to the direction of application of the impulse and at an angle of 45 ° and 22.5 ° from the axis of the impulse. The rigid blocks taken for the test should be a slender structure that has the ability to rock around an axis at its base. With the obtained behavioral areas, measurements were made through which could be seen how block displacements change the behavior. At the end of the experiments, an attempt was made to explain the significance of the differences in block stability when positioned differently. In addition to the lessons learned from rigid blocks, there are some examples of practices through which the rocking motion is presented. The results obtained in the paper could be put into practice with more detailed research so that the possibility of rocking could be used to somehow protect against overturning structures of this type.