Global Attenuation Relationship for Estimating Peak Ground Acceleration
Peak Ground Acceleration (PGA) is a very important ground motion parameter which is used to define the degree of ground shaking during an earthquake. It is also very helpful for designing earthquake resistant structure. The PGA can be estimated by attenuation relationships using magnitude, distance, source type etc of a ground motion. In the past, several researchers have developed over 450 attenuation relationships for predicting PGA for a specific region. In the present study an attempt has been made to develop an attenuation relationship on the basis of these available previous relationships in rock site which will be applicable for any region of the world. In the present study, PGA has been expressed as a function of moment magnitude and hypo-central distance in rock site. Chi-square test have also been performed with available earthquake data in American and Indian region for verifying the accuracy of the generated attenuation relationship. Using multiple regression and Genetic Algorithm (GA) the attenuation relationship equations have also been generated. These equations will be very helpful for performing seismic hazard analysis and predicting earthquake force in any region of the world.
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- Agrawal, S.K. and Chawla, J. (2006) Seismic hazard assessment for Delhi region. Curr. Sci., v.91(12), pp.1717–1724.Google Scholar
- Das, N.G. (2008) Statistical Methods, Kolkata: Tata McGraw-Hill Education.Google Scholar
- Das, R. et al. (2017) Reply to "comments on "Unbiased estimation of moment magnitude from body?and surface?wave magnitudes" by Ranjit Das, H.R.Wason and M.L.Sharma and "Comparative analysis of regression methods used for seismic magnitude conversions" by P. Gasperini, B. Lolli, Bull. Sesmol. Soc. America.Google Scholar
- Douglas, J. (2017) Ground motion prediction equations 1964 to 2016, Glasgow.Google Scholar
- Ferreira, F. (2001) Gene Expression Programming: A New Adaptive Algorithm for Solving Problems. Complex Systems, v.13, pp.87–129.Google Scholar
- Haldar, A. and Mahadevan, S. (2000) Probability, Reliability, and Statistical Methods in Engineering Design, Wiley.Google Scholar
- Shiuly, A., Kumar, V. and Narayan, J. (2014) Computation of ground motion amplification in Kolkata megacity (India) using finite-difference method for seismic microzonation. Acta Geophysica, v.62(3), pp.425–450. Available at: https://doi.org/www.degruyter.com/view/j/acgeo.2014.62.issue-3/s11600-013-0169-2/s11600-013-0169-2.xml.CrossRefGoogle Scholar