Planning n Mitigation | VOL. 15, ISSUE 90, May-June 2015 |

Building on a Flood Plain and a Fault Zone

Delhi is fragile, especially at its seams, commonly known as the fault line. Designated in Zone IV, Delhi is situated atop three active seismic fault lines—Sohna, Mathura and Delhi-Moradabad. A cursory glance at the India Meteorology Department’s first level seismic hazard microzonation map of Delhi (Fig 1.) reveals a high hazard scenario in north, north-east and eastern part of Delhi. A multitude of studies, by researchers and scientists of eminent organisations, costing the country thousands of crores, point out safer areas in Delhi. One would assume that builders would be aware of hazard regions and would optimally utilise this information for safer homes and offices. However, that is not the case. Private builders neither heed the scientific zonations, nor do they follow building codes laid out by Bureau of Indian Standards. The outcome is ill-ventilated, over-crowded, fragile structures that house large number of poor and middle income groups. Not wanting...

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