Disaster, nonlinearity and chaos An analysis

An evaluation of disasters in the form of landslides and floods is presented. The study has been carried out in the perspective of nonlinearity, chaos and the complexity of their management. The devastating landslide at Ambootia Tea Estate in the Himalayan Darjeeling District, West Bengal (a vulnerable earthquake zone) which took place in 1966, killing about ten thousand people is discussed in detail and mathematically analysed using the fractal concepts.