Iran Strong Motion Network (ISMN) started its activities in 1973. Iran Strong Motion Network had 1087 digital (1082 SSA-2 and 5CMG-5TD) and 13 analog (SMA-1) accelerographs in operation in 2007. The accelerograms of different earthquake, are downloaded, controlled, processed, and then added to the comprehensive data bank, which is very useful for scientists and engineers in the field of engineering seismology and earthquake engineering. In the second half of the year 2007, 124 accelerograms (with PGA greater than the trigger level of 0.01g) were recorded by 91 accelerographs, which were triggered by 69 different earthquakes. The maximum PGA of about 0.148g was occurred in Tabriz station (Eastern Azerbaijan Province).

Iran Strong Motion Network started its activities in 1973 and running by Building and Housing Research Center since 1981. At the date of this study ISMN consisted of more than 1103 digital (SSA-2) and 15 analog (SMA-1) accelerographs. The accelerograms of different earthquake, are downloaded, controlled, processed, and then added to the comprehensive data bank, which is very useful for scientists and engineers in the field of engineering seismology and earthquake engineering.Here, the most important earthquakes are briefly described. More information is presented in Appendix I and also available on http://www.bhrc.ac.ir.