Deaggregation of Seismic Hazards for Two Different Sites in Indore Region
Education as well as health centers with advanced facilities play an important role in the growth and infrastructure development of any city. Past eight to nine decades have witnessed vast development in the infrastructure and these changes can be very clearly seen in Central Part of India namely Indore Region which has seen a lot many educational hubs like IIT and IIM. This region has also seen commercial development marking its importance in the economic development and growth of the region as a whole. To reduce the damage due to seismic activity, site-specific seismic hazarded analysis of these two institutes have been carried out using the probabilistic concepts. The study that has been carried out develops hazard curves and uniform hazards response spectra for three different probabilities of exceedance (50, 10, and 2%) in a span of 50 years. Seven different ground motion prediction equations have been used to estimate the uncertainty in the hazard estimation. To understand the seismic scenario of the earthquake sources, deaggregation of the seismic results has been done. Post deaggregation, it was observed that earthquakes with higher magnitude are contributing more significantly to the seismic activity for both the sites in Indore Region.
KeywordsDeaggregation Seismicity Hazard estimation Uniform hazard curves
The authors would like to acknowledge the valuable inputs given by Prof (Dr.) DeepankarChoudhary, IIT Mumbai, M. ASCE. We also extend our sincere thanks to India Meteorological Department (IMD), New Delhi for sharing the valuable earthquake data for the study area.
- 1.Jaiswal K, Sinha R (2007) Spatial variation of maximum considered and design basis earthquakes in peninsular India. Curr Sci 92(5):639–645Google Scholar
- 2.Bazzurro P, Cornell CA (1999) Disaggregation of seismic hazard. Bull Seism Soc Am 89:501–520Google Scholar
- 4.Tinti S, Mulargia F (1985) Completeness analysis of a seismic catalog. Ann Geophys 3:407–414Google Scholar
- 5.Desai S, Choudhury D (2014) Deterministic seismic hazards analysis for greater Mumbai, India. Geotechnical Special Publication No GSP 234, ASCE (ISBN 978-0-7844-1329-6), pp 389–398. https://doi.org/10.1061/978084413272.038
- 6.Raghu Kanth STG, Iyengar RN (2006) Seismic hazard estimation for Mumbai city. Curr Sci 91(11):1486–1494Google Scholar
- 10.Sadigh K, Chang CY, Egan JA, Makdisi F, Youngs RR (1997) Attenuation relations for shallow crustal earthquakes based on California strong motion data. Seismol Res Lett 68:180–189Google Scholar
- 12.Atkinson GM, Boore DM (1997) Some comparisons between recent ground motion relationships. Seismol Res Lett 68:24–40Google Scholar
- 13.CRISIS (2007) Version 7.2 Program for Computing Seismic Hazard developed by Ordaz M, Aguilar A, Arboleda. Instituto de Ingenieria, UNAM, MexicoGoogle Scholar