Tehran as the political and administrative center of the country, the concentration of economic and industrial activities, the concentration and concentration of the population, the density and concentration of the population, access to the transportation network and communication routes (the center of the crossroads of railways, roads E & A), the focus of financial, credit and banking institutions is one of the most important provinces in the country. The area of Tehran, located in the southern foothills of the central Alborz Mountains, is considered one of the most viable areas in Iran. Seismic activity of Tehran and adjacent areas due to Alborz folding and faults in this range. The present study is based on available sources of springs, earthquakes and seismic parameters related to springs. It is evident that, with more extensive information and more precise mechanical data inputs, Tehran's seismic zoning pattern can change. slow. Finally, due to the large number of faults in Tehran and the historical records of the activity of these faults, we will find that there will be a massive earthquake in Tehran not far away.
Key words: Tehran, earthquake, probabilistic, earth.