The Iranian Seismic Telemetry Network was founded in 1995 and it is the first modern seismic network of Iran. All hardware and software were bought from Nanometrics Inc. of Canada. The Network is equipped with 3-component short period seismographs grouped in 10 sub-networks distributed over a large part of the country. These sub-networks are the Esfahan, Kermanshah, Mashad, Mazandaran, North of Khorasan, Semnan, Shiraz, Tehran, Tabriz and Yazd networks. The Institute of Geophysics initiated its efforts by installation of the first group of the sub-networks in the Tabriz and Tehran regions in 1995. The Kermanshah Network is the most recent of the sub-networks, having been launched in year 2003.

The Network has a central processing facility at the Institute of Geophysics in Tehran, which receives data from all the sub-networks. Satellite or internet communication between the Institute of Geophysics and the sub-networks is currently being planned. Within each of the sub-networks, the data from remote stations is telemetered to the appropriate central recording station (CRS) on a continuous basis. The remote stations are equipped with SS-1 seismometer with eigenfrequency of 1 Hz made by Kinemetrics Co., VHF antenna, Tx transmitters made by Nanometrics Inc., 24 or 16-bit analog to digital digitizer, and power supply based on solar energy. The CRS stations are equipped with VHF antenna and receivers, a computer system to record and process the data, GPS and power supply systems. The data is recorded on a 50 sample per second basis and processed in real time by a computer called NAQS (Nanometrics Acquisition System). After time correction, the data is recorded on a ring buffer that keeps the data for one week. When at least four stations detect an event, a triggering system is activated and records the event data permanently on a hard disk. The triggering system is based on STA/LTA (Short Time Average/Long Time Average) algorithm. The raw and processed data are regularly archived on CD.