Road, Housing and Urban Development Research Center Iran Strong Motion Network (ISMN) Catalogue of Earthquake Strong Ground Motion Records (۲۰۱۵)

A better understanding of seismic phenomenon and its impacts on the buildings and structures is crucial in earthquake hazard reduction. This has led to increasing research activities in geophysics, engineering seismology and earthquake engineering along with development of Iran Strong Motion Network (ISMN). Meanwhile, the occurrence of Manjil-Roudbar earthquake on June 20th, 1990, boosted the development of ISMN to 1200 digital accelerographs all over the country within a five year period. This network improvement enabled ISMN to record many weak to strong local earthquakes and provide a comprehensive and valuable strong motion database for the applied studies. The valuable records gathered via this network, were the main database used by many researches in the field of earthquake engineering and engineering seismology. Therefore, we in BHRC are keen to pursue more improvement and development of ISMN including: • To continue establishing new strong motion stations in the seismically active regions regarding the past recorded events, • To establish the borehole strong-motion arrays for site effect investigations, • To establish accelerographs in tall buildings for structure monitoring, • To continue installing of accelerographs in special structures including dams and other infrastructural constructions to study their performance during an earthquake. These items were considered as the main goals in a successful improvement that was started since 2001. Besides the formal duties, other activities including presentation of this network among the scientific and engineering communities in the country were undertaken. The other activities are as follows: • Publishing and distributing the monthly newsletter of ISMN in Farsi as the only source of Strong Motion Data announcements. • Producing a comprehensive accelerographic data bank. • Establishing of ISMN web page on BHRC web site (www.bhrc.ac.ir) for quick and rapid information of the recorded data. At the time of the publication of this catalogue, ISMN runs 1103 accelerographs which are installed across the country and are ready to be triggered upon occurance of earthquakes .More than 10994 three-component accelerograms have been recorded, providing the most valuable database for researchers in the fields of engineering seismology, earthquake engineering, seismotectonics and other related fields. As a turning point, we had started publishing a series of catalogue which includes yearly main data since 2001 and this is the 13th edition for 2015. These series of publications, includ general information about the main recorded accelerograms in Iran along with the main strong motion parameters as samples of the comprehensive data bank of ISMN. It could be a useful reference for researchers, engineers and college students in earthquake related fields in the world. We are determined to continue publishing the next series of yearly issues in future.