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1. Department of Seismotectonic

2. Department of Seismology

3. Department of Engineering Seismology

4. Department of National Data Center

5. National Center for Earthquake Prediction

Main Tasks:

Seismotectonic study of Iran and general investigation of plate tectonic.

Programs:

• Study of faults and seismotectonic structure of Iran

• Study of existing potential active faults and their behavior after an earthquake

• Preparation of Seismotectonic maps

• Historical seismicity investigation of active faults(to be completed in the earthquake catalogs)

• Crustal displacement determination using GPS data

• Paleoseismological investigations on fault escarpments

• Seismic sites investigation for geologic characteristics

• Seismogenic sources identification for earthquake hazard estimation in sites and engineering structures

Main Tasks:

Installation, Operation and Maintenance of the Iranian National Seismic Network (INSN), Processing and Analysis of seismic data recorded at INSN, Installation and Operation of Mobil Seismic Network, Earthquake Location, Providing earthquake related information to the decision and help organizations and Preparation of Earthquake Bulletins and Catalogs.

Programs:

• Design, Installation, Operation and Maintenance of the National Broadband Seismic Stations

• Operation and Maintenance of the communication links between remote seismic stations and the INSN Center

• Installation and Operation of Mobil Seismic Network

• Design and construction of the seismic recording equipment

• Calibration and determination of instrument response

• Preliminary automatic location and announcement of preliminary results to the Authorities

• Quality control and final processing of recorded seismic data for final analysis

• Computation of earthquake epicenter location and parameters

• Providing final results of the analysis to decision making and help Organizations

• Crustal Modelling and application of updated seismic velocity models for earthquake location

• Earthquake bulletin and catalog preparation

Softwares:

• Seis 89

• Seismic

• Pitsa

• Seisan

• GMT

• Seislog

• Scream

Hardwares:

Main Tasks:

Processing of Accelerograms from INSN and other sources, identification of the accelerograms characteristics, computation of the relations between seismicity and attenuation, analysis of the earthquake risk, preparation of seismic hazard zonation maps of Iran and spectrum design.

Programs:

• Seismic hazard sources study and modelling from earthquake engineering point of view

• Accelerograms study, investigation of their response spectrum and collecting the spectrum design

• Topographic analysis and site effects in accelerograms

• Attenuation model development of Iran and surroundings

• Using the findings of strong ground motion for decreasing the earthquake hazards

• Updating the earthquake hazard analysis with taking advantage of attenuation models of Iran

• Seismic hazard estimation and preparation of zonation maps in seismic zone

• Preparation of Earthquake hazard maps for Iranian cities

• Hazard estimation in seismic gap regions(such as central area of Iran)

• Artificial accelerograms production

• Study and investigation of ground motion, catalog, site effects, seismic moment, energy duration and attenuating models preparation

• Preparation of Seismic hazard map of Iran with return periods of 75 and 475 years

• Application of surface waves in engineering studies (SASW)

• Earthquake intensity study in Iran

• Study ground motion processing of recent Iranian earthquake

• Preparation of spectral acceleration map for Tehran region
  

 
Department of National Data Center

Main Tasks:

The Comprehensive Test Ban Treaty has been signed by 196 State Parties. For control of nuclear explosion, the International monitoring system (IMS) has been established under CTBTO which consist of 237 seismic, hydrostatic, infrasound, radionuclide stations and Global Communication Infrastructure (GCI), International Data Center (IDC) for data processing and analysis. The other scientific part of CTBTO is related to On-Site Inspection (OSI).
By decree of National High Security Consul of Iran, IIEES has been assigned to provide scientific needs in connection with the CTBTO. The Department of National Data Center (DNDC) has been established to cover the NDC activity and participation in OSI programs.

Programs:

• Installation, Operation and Maintenance of the seismic stations of the International monitoring system in Iran

• Installation, Operation and management of National Data Center (NDC)

• Discrimination of natural and artificial events using signal processing methods

• Participation in On-Site Inspection (OSI) programs

• Scientific representation of Iran in different parts of CTBTO