Seismic Hazard assessment and Microzonation

Core competence

Strong motion seismology, Probabilistic and deterministic seismic hazard assessment, Seismic microzonation, Site specific studies, Engineering Geophysics, Time domain electromagnetic and shallow resistivity investigations.

Significant contributions

  • Seismic hazard map of Gujarat using deterministic and neo-deterministic approaches.
  • Resonance frequency and site amplification maps in diverse geological terrains.
  • Probabilistic seismic hazard assessment map of India .
  • Vs30 (shear-wave velocity to 30m depth) map of Gujarat.
  • Response spectra for nuclear power plants at Kakrapar (Gujarat) and Rawatbhata (Rajasthan) .
  • Seismic hazard assessment of ports of Gujarat, Gujarat International Finance Tec City (planned cluster of skyscrapers upto 100 storeys), Sardar Patel Statue of Unity (182 m high tallest statue in the world), LNG Storage Terminals (at Dahej and Mundra), planned 15-story V S Hospital in Ahmadabad, planned multi-storey commercial complex in Gandhinagar.
  • Seismic micorzonation of Gandhidham-Kandla area, Dholera Special Investment Region, Gandhinagar and Ahmadabad cities.

Current pursuits

  • Multi-channel analysis of surface waves for Museum Building, Smriti Van, Bhuj.
  • Seismic microzonation of Bhuj city, Kachchh, Gujarat.


Dr.Sumer Chopra (PI)

Dr. Pallabee Choudhury (Co-PI)


Dr.Madan Mohan Rout

Dr.Vasu Pancholi

Dr. Archana Das

Ms.Vandana Patel

Mr.Vinay Kumar

Mr.Tarun Solanki


Detailed geophysical and geological investigations to identify copper lead and zinc mineralization around Ambaji, Banaskantha district are in progress.

ISR has initiated a project on imaging the shallow subsurface of the Kachchh district for delineation of ground water aquifers and fresh water-saline water interface.