Seismic Hazard Assessment of Gujrat International Finance Tec-City
The vulnerability of GIFT city from seismic hazards due to geological fault lines present in that region was assessed, and potential seismic sources were identified. GIFT city lies in Zone 3 according to seismic zonation maps of India and is nearby to the Zone 4. The past earthquake catalogue of GIFT city region is prepared. All earthquakes in the radius of 500 km from the GIFT city were taken (from United States Geological Survey), and the datasheet was prepared according to the latitude, longitude, magnitude, time and date. Spatial and temporal distribution of the foreshocks and aftershocks within 30 days from the main earthquake were analysed and declustering was done. Magnitudes of all earthquakes were homogenized and taken in terms of Moment magnitude (MW). Seismic tectonic map of GIFT city region was taken and superimposed with these past earthquakes, and the effect of each fault line nearby was studied. Previous earthquakes were assessed, and their sources were identified. The Peak Ground Acceleration (PGA) and Ground motion attenuation were calculated using these data. The fault lines that can cause tremors or earthquakes in the GIFT city were assessed and studied.
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