Geologically Indonesia is located on the confluence of three major tectonic plates, namely Indo-Australia, the Eurasian plate, the Pacific plate as well as a micro-plate, namely micro-Plate Philippines. The above conditions with Indonesia being one of the countries that suffers earthquakes either tectonic or volcanic. A case study of building C and D ITERA is an adjacent building, then from that researchers want to discuss about the displacement that occurred at the confluence of the structure. The purpose of this research is to know the value of displacement i.e. inter-story drifts maximum displacement, and the junction between the building happens in the meeting structure building C and D ITERA when given dynamic load time history and to know the minimum distance between buildings so as not to occur collisions (pounding effect). Dynamic analysis for earthquake resistant building design important completed because a more accurate for evaluation against the response structure due to earthquake loads. Earthquake load (time history) used is The Loma Prieta, The Northridge, The Kobe, The Trinidad, and The Hollister has in matching with response spectrum design area of building C and D ITERA.