Deterministic Seismic Hazard Analysis for the State of Haryana, India

Abstract

The Indian state of Haryana is in a phase of rapid industrial development. In order to help engineers and town planners in designing earthquake resistant structures, it is necessary to carry out site specific seismic hazard analysis and plan mitigation measures. It is apprehended that Indian Code generalises the design peak ground acceleration values which may underestimate the seismic loading in high seismicity regions. Therefore, it is necessary to develop regional seismic hazard scenario in line with the local seismotectonic setting which is consistent with other seismic codes worldwide. In all, 12 seismogenic sources have been identified in the seismic study area. The maximum magnitude has been assigned to each seismogenic source considering regional rupture character. Ground motion prediction equation developed for Indo-Gangetic region by National Disaster Management Authority of India has been used. The peak ground acceleration along with response spectrum for A-type sites for the state have been estimated using state of the art in deterministic seismic hazard analysis methodology. These determined strong motion parameters have been compared with the values given in Indian Standard for criteria for earthquake resistant design of structures to validate them for further practical use. The prepared spectra can be further used to quantify seismic loading for designing earthquake resistant structures in Haryana.