Activity 2C – Seismicity and seismic hazard assessment in the Himalaya
The tectonic setting in the Himalayan region is complex, and the crustal and upper mantle structure are very heterogeneous. The Himalayan belt is a unique natural laboratory to test probable models of earthquake genesis in convergent tectonics. To understand the earthquake source processes, and medium characteristics for the assessment, mitigation, and reduction of seismic hazards. The maximum area of the Himalayan belt has been classified in the highest seismic zone V. The present activity involved seismological studies, specifically in the seismic gap of the Himalaya. The seismicity patterns with reference to changes in seismicity, migration, clustering, de-clustering, and swarm activity, provide significant information from a seismological point of view including Coulomb stress modelling and seismicity to understand the incomplete ruptures of the Main Himalayan Thrust (MHT). The fault plane solution and waveform modeling would be implemented to investigate the earthquake processes. The subsurface heterogeneity would be investigated and explored based on source mechanisms, stress pattern and seismological data set. It covers evaluation of seismic hazards and disasters assessment for a particular region at a given time. The detailed study also includes attenuation, site amplification, and simulation of strong ground motion would be helpful for sustainable development.
Team Members:
 Ajay Paul (Activity In-charge) Scientist ‘F’ Phone No: 01352525452 Email: ajaypaul’AT’wihg[dot]res[dot]in |  Dilip Kumar Yadav Scientist ‘E’ Phone No: 01352525352 Email:yadavdk’AT’wihg[dot]res[dot]in |  Narendra Kumar Scientist ‘D’ Phone No: 01352525139 Email:narendra’AT’wihg[dot]res[dot]in |
 Parveen Kumar Scientist ‘D’ Phone No: 01352525455 Email:parveenkumar’AT’wihg[dot]res[dot]in |  Chinmay Haldar Scientist ‘B’ Phone No: 01352525407 Email: chinmay’AT’wihg[dot]res[dot]in |